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Journal articles on the topic 'Non-Standard neutrino Interaction'

Author: Grafiati

Published: 9 March 2023

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1

Papoulias, D. K., and T. S. Kosmas. "Probing electromagnetic neutrino properties within the tensor non-standard neutrino-nucleus interactions." HNPS Proceedings 23 (March 8, 2019): 119. http://dx.doi.org/10.12681/hnps.1915.

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Non-standard coherent neutrino scattering off nuclei is extensively studied through realistic nuclear structure calculations performed within the framework of the quasi-particle random phase approximation (QRPA). More specifically, we focus on the accurate estimation of the number of events expected to be measured by the COHERENT experiment at the Spallation Neutron Source at Oak Ridge, as well as by the reactor neutrino experiments TEXONO and GEMMA. To this purpose our study concentrates on the relevant detector materials 20 Ne, 40 Ar, 76 Ge and 132 Xe. In this context, we obtain stringent constraints on the vector and tensor non-standard interaction parameters and examine their impact on various electromagnetic neutrino phenomena such as neutrino magnetic moments and neutrino milli-charges. Our results indicate that the aforementioned experiments offer significant prospects to probe neutrino properties predicted in theories beyond the Standard Model.

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2

KLINKHAMER, F. R. "NEUTRINO MASS AND THE STANDARD MODEL." Modern Physics Letters A 28, no. 05 (February 6, 2013): 1350010. http://dx.doi.org/10.1142/s0217732313500107.

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It is pointed out (not for the first time) that the minimal Standard Model, without additional gauge-singlet right-handed neutrinos or isotriplet Higgs fields, allows for nonvanishing neutrino masses and mixing. The required interaction term is non-renormalizable and violates B-L conservation. The ultimate explanation of this interaction term may or may not rely on grand unification.

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3

Ohlsson, Tommy, and He Zhang. "Non-standard interaction effects at reactor neutrino experiments." Physics Letters B 671, no. 1 (January 2009): 99–104. http://dx.doi.org/10.1016/j.physletb.2008.12.005.

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4

LATTANZI, MASSIMILIANO, and GIOVANNI MONTANI. "ON THE INTERACTION BETWEEN THERMALIZED NEUTRINOS AND COSMOLOGICAL GRAVITATIONAL WAVES ABOVE THE ELECTROWEAK UNIFICATION SCALE." Modern Physics Letters A 20, no. 34 (November 10, 2005): 2607–18. http://dx.doi.org/10.1142/s0217732305018827.

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We investigate the interaction between the cosmological relic neutrinos, and primordial gravitational waves entering the horizon before the electroweak phase transition, corresponding to observable frequencies today ν0≳10-5 Hz . We give an analytic formula for the traceless transverse part of the anisotropic stress tensor, due to weakly interacting neutrinos, and derive an integro-differential equation describing the propagation of cosmological gravitational waves at these conditions. We find that this leads to a decrease of the wave intensity in the frequency region accessible to the LISA space interferometer, that is at the present the most promising way to obtain a direct detection of a cosmological gravitational wave. The absorbed intensity does not depend neither on the perturbation wavelength, nor on the details of neutrino interactions, and is affected only by the neutrino fraction fν. The transmitted intensity amounts to 88% for the standard value fν=0.40523. An approximate formula for non-standard values of fν is given.

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5

Ye, Ziping, Feiyang Zhang, Donglian Xu, and Jianglai Liu. "Unambiguously Resolving the Potential Neutrino Magnetic Moment Signal at Large Liquid Scintillator Detectors." Chinese Physics Letters 38, no. 11 (December 1, 2021): 111401. http://dx.doi.org/10.1088/0256-307x/38/11/111401.

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Non-vanishing electromagnetic properties of neutrinos have been predicted by many theories beyond the Standard Model, and an enhanced neutrino magnetic moment can have profound implications for fundamental physics. The XENON1T experiment recently detected an excess of electron recoil events in the 1–7 keV energy range, which can be compatible with solar neutrino magnetic moment interaction at a most probable value of μν = 2.1 × 10−11 μ B. However, tritium backgrounds or solar axion interaction in this energy window are equally plausible causes. Upcoming multi-tonne noble liquid detectors will test these scenarios more in depth, but will continue to face similar ambiguity. We report a unique capability of future large liquid scintillator detectors to help resolve the potential neutrino magnetic moment scenario. With O(100) kton⋅year exposure of liquid scintillator to solar neutrinos, a sensitivity of μν < 10−11 μ B can be reached at an energy threshold greater than 40 keV, where no tritium or solar axion events but only neutrino magnetic moment signal is still present.

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6

Chakraborty, Madhurima. "Dense neutrino oscillations : beyond two flavor." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012106. http://dx.doi.org/10.1088/1742-6596/2156/1/012106.

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Abstract In a dense supernova environment, neutrinos can undergo flavor conversions known as the collective oscillations. These self induced neutrino flavor conversions (collective oscillations) are almost exclusively studied in the standard two flavor scenario. We study these oscillations in the complete three flavor scenario. The ‘fast’ conversions are fascinating distinctions of the dense neutrino systems. In the fast modes the collective oscillation dynamics are independent of the neutrino mass, growing at the scale of the large neutrino-neutrino interaction strength (105 km−1 ) of the dense core. This is extremely fast, as compared to the usual ‘slow’ collective modes driven by much smaller vacuum oscillation frequencies (100 km−1). We perform the first non-linear simulations of fast conversions in the presence of three neutrino flavors which is motivated from the recent supernova simulations with muon production. We relax the standard ν μ , τ = ν ¯ μ , τ (two-flavor) assumption. Our results show the significance of muon and tau lepton number angular distributions, together with the traditional electron lepton number ones and thus explain the need for a complete three flavor analysis.

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7

LAW, Z. Y., A. H. CHAN, and C. H. OH. "NEUTRINO OSCILLATION IN DENSE MEDIUMS." International Journal of Modern Physics A 24, no. 18n19 (July 30, 2009): 3483–92. http://dx.doi.org/10.1142/s0217751x09047090.

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It is found that a term normally discarded in the standard treatment of the MSW effect might be relevant in the case of non-adiabatic varying matter density, leading to a second order field equation, instead of the usual first order "Schrodinger equation". This leads to dispersion relation that gives rise to the possibility of neutrino trapping in a dense medium as well as the coupling of neutrino oscillation to neutral current interaction. This is found to be in agreement with previous results1. The corresponding conserved probability current is derived for this second order equation, and applied to the case of 2-flavor neutrino oscillation in a dense medium. The results in this work might be applicable to the oscillation of neutrinos in dense astrophysical medium.

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8

Rahman, Zini, Arnab Dasgupta, and Rathin Adhikari. "The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects." Journal of Physics G: Nuclear and Particle Physics 42, no. 6 (April 21, 2015): 065001. http://dx.doi.org/10.1088/0954-3899/42/6/065001.

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9

Ghosh, Monojit, and Osamu Yasuda. "Testing NSI suggested by solar neutrino tension in T2HKK and DUNE." Modern Physics Letters A 35, no. 17 (April 16, 2020): 2050142. http://dx.doi.org/10.1142/s0217732320501424.

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It was shown that the tension between the mass-squared differences obtained from solar neutrinos and those acquired through KamLAND experiments may be solved by the introduction of a non-standard flavor-dependent interaction (NSI) in neutrino propagation. In this study, we discuss the possibility of testing such a hypothesis using the future long-baseline neutrino experiments T2HKK and DUNE. Assuming that the NSI does not exist, we provide the excluded region within the ([Formula: see text], [Formula: see text]) plane, where [Formula: see text] and [Formula: see text] are the parameters appearing in the solar neutrino analysis conducted with the NSI. We find that the best fit value from the solar neutrino and KamLAND data (global analysis of a particular coupling to quarks) can be tested at more than [Formula: see text] by these two experiments for most of the parameter space.

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10

Righi, C., A. Palladino, F. Tavecchio, and F. Vissani. "EeV astrophysical neutrinos from flat spectrum radio quasars." Astronomy & Astrophysics 642 (October 2020): A92. http://dx.doi.org/10.1051/0004-6361/202038301.

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Context. Flat-spectrum radio quasars (FSRQs) are the most powerful blazars in the γ-ray band. Although they are supposed to be good candidates in producing high-energy neutrinos, no secure detection of FSRQs has been obtained to date, except for a possible case of PKS B1424-418. Aims. In this work, our aim was to compute the expected flux of high-energy neutrinos from FSRQs using standard assumptions for the properties of the radiation fields filling the regions surrounding the central supermassive black hole. Methods. Starting from the FSRQ spectral sequence, we computed the neutrino spectrum assuming interaction of relativistic protons with internal and external radiation fields. We studied the neutrino spectra resulting from different values of free parameters Results. The result we obtained is that high-energy neutrinos are naturally expected from FSRQs in the sub-EeV–EeV energy range and not at PeV energies. This justifies the non-observation of neutrinos from FSRQs with the present technology, since only neutrinos below 10 PeV have been observed. We found that for a non-negligible range of the parameters, the cumulative flux from FSRQs is comparable to or even exceeds the expected cosmogenic neutrino flux. This result is intriguing and highlights the importance of disentangling these point-source emissions from the diffuse cosmogenic background.

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11

Fukasawa, Shinya, and Osamu Yasuda. "The possibility to observe the non-standard interaction by the Hyperkamiokande atmospheric neutrino experiment." Nuclear Physics B 914 (January 2017): 99–116. http://dx.doi.org/10.1016/j.nuclphysb.2016.11.004.

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12

Iacob, F., F. Acerbi, I. Angelis, M. Bonesini, A. Branca, C. Brizzolari, G. Brunetti, et al. "ENUBET: a monitored neutrino beam for the precision era of neutrino physics." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012234. http://dx.doi.org/10.1088/1742-6596/2156/1/012234.

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Abstract The ENUBET ERC project, also included in the CERN Neutrino Platform as NP06/ENUBET, is developing a new neutrino beam based on conventional techniques in which the flux and the flavor composition are known with unprecedented precision (O (1%)). Such a goal is accomplished monitoring the associated charged leptons produced in the decay region of the ENUBET facility. Positrons and muons from kaon decays are measured by a segmented calorimeter instrumenting the walls of the decay tunnel, while muon stations after the hadron dump can be used to monitor the neutrino component from pion decays. Furthermore, the narrow momentum width (<10%) of the beam provides a precise measurement (O (10%)) of the neutrino energy on an event by event basis, thanks to its correlation with the radial position of the interaction at the neutrino detector. ENUBET is therefore an ideal facility for a high precision neutrino cross-section measurement at the GeV scale, that could enhance the discovery potential of the next-generation of long baseline experiments. It is also a powerful tool for testing the sterile neutrino hypothesis and to investigate possible non-standard interactions.

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13

Kumar, Anil, Amina Khatun, Sanjib Kumar Agarwalla, and Amol Dighe. "Exploring NSI using oscillation dip and valley in atmospheric neutrino experiments." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012119. http://dx.doi.org/10.1088/1742-6596/2156/1/012119.

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Abstract We present a new approach to probe flavor-changing neutral-current non-standard neutrino interaction parameter εμτ using the oscillation dip and valley features. We use the simulated up/down ratio of reconstructed muons events at the proposed Iron Calorimeter (ICAL) detector at the India-based Neutrino Observatory to demonstrate that in presence of NSI parameter ε μτ, the oscillation dip location shifts and oscillation valley bends. Utilizing the charge identification capability of ICAL, the opposite shifts in the oscillation dip locations and the contrast in the oscillation valley curvatures for μ− and μ+ can be used to place 90% C.L. bounds of about 2% on |εμτ| using 500 kt• yr exposure. In our procedure, we take care of statistical fluctuations, systematic errors, and uncertainties in neutrino oscillation parameters.

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14

DOUKAS, JASON, S. RAI CHOUDHURY, and G. C. JOSHI. "LEPTON NUMBER VIOLATION VIA INTERMEDIATE BLACK HOLE PROCESSES." Modern Physics Letters A 21, no. 34 (November 10, 2006): 2561–68. http://dx.doi.org/10.1142/s0217732306021694.

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Black holes at the TeV scale are investigated in the extra large dimension scenario. We interpret the lightest black hole excitation as a singlet scalar field, and show how interaction terms can be appended to the standard model at the dimension five non-renormalizable level. Lepton family number violation is natural in this model. Muon magnetic moment, and neutrino masses are investigated. We also present a quantization scheme in n dimensions.

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15

Feng, Jonathan L., Felix Kling, Mary Hall Reno, Juan Rojo, Dennis Soldin, Luis A. Anchordoqui, Jamie Boyd, et al. "The Forward Physics Facility at the High-Luminosity LHC." Journal of Physics G: Nuclear and Particle Physics 50, no. 3 (January 20, 2023): 030501. http://dx.doi.org/10.1088/1361-6471/ac865e.

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Abstract High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from the ATLAS interaction point and shielded by concrete and rock, will host a suite of experiments to probe standard model (SM) processes and search for physics beyond the standard model (BSM). In this report, we review the status of the civil engineering plans and the experiments to explore the diverse physics signals that can be uniquely probed in the forward region. FPF experiments will be sensitive to a broad range of BSM physics through searches for new particle scattering or decay signatures and deviations from SM expectations in high statistics analyses with TeV neutrinos in this low-background environment. High statistics neutrino detection will also provide valuable data for fundamental topics in perturbative and non-perturbative QCD and in weak interactions. Experiments at the FPF will enable synergies between forward particle production at the LHC and astroparticle physics to be exploited. We report here on these physics topics, on infrastructure, detector, and simulation studies, and on future directions to realize the FPF’s physics potential.

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16

Martínez-Miravé, Pablo. "Cosmological radiation density with non-standard neutrino-electron interactions." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012011. http://dx.doi.org/10.1088/1742-6596/2156/1/012011.

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Abstract Non-standard interactions (NSI) between neutrinos and electrons can significantly modify the decoupling of neutrinos from the plasma. These interactions have two effects on the overall picture: (i) they alter neutrino oscillations though matter effects and (ii) they modify the scattering and annihilation processes involving neutrinos and electrons and positrons. We study the role of non-universal and flavour-changing NSI in the decoupling and how they impact the determination of the effective number of neutrinos, N eff. We examine the degeneracies between NSI parameters and we compare the expected sensitivity from future cosmological surveys with the current limits from terrestrial experiments. We outline the complementarity between both approaches.

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17

Volpe, Maria Cristina. "Neutrinos : from the r-process to the diffuse supernova neutrino background." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012126. http://dx.doi.org/10.1088/1742-6596/2156/1/012126.

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Abstract Neutrinos from dense environments are connected to the longstanding open questions of how massive stars explode and what are the sites where r-process elements are made. Flavor evolution and neutrino properties can influence nucleosynthetic abundances. GW170817 has given indirect evidence for r-process elements in binary neutron star mergers. We discuss the impact of non-standard interactions in such sites. Nearby compact objects, strong gravitational fields are present. We discuss their influence upon neutrino decoherence in a wave packet treatment of neutrino propagation. We conclude by mentioning the upcoming measurement of the diffuse supernova neutrino background.

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18

Friedland, Alexander. "Solar and atmospheric neutrinos and non-standard neutrino interactions." Nuclear Physics B - Proceedings Supplements 143 (June 2005): 493. http://dx.doi.org/10.1016/j.nuclphysbps.2005.01.158.

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19

Masoud, Muhammad Atif, Mansoor Ur Rehman, and Qaisar Shafi. "Sneutrino tribrid inflation, metastable cosmic strings and gravitational waves." Journal of Cosmology and Astroparticle Physics 2021, no. 11 (November 1, 2021): 022. http://dx.doi.org/10.1088/1475-7516/2021/11/022.

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Abstract We present a successful realization of sneutrino tribrid inflation model based on a gauged U(1)_B-L extension of Minimal Supersymmetric Standard Model (MSSM). A single interaction term involving the B-L Higgs field and the right-handed neutrinos serves multiple purposes. These include the generation of heavy Majorana masses for the right-handed neutrinos to provide an explanation for the tiny neutrino masses via the seesaw mechanism, a realistic scenario for reheating and non-thermal leptogenesis with a reheat temperature as low as 106 GeV, and a successful realization of inflation with right-handed sneutrino as the inflaton. The matter parity which helps avoid rapid proton decay survives as a Z2 subgroup of a U(1) R-symmetry. Depending on the choice of model parameters yields the following predicted range of the tensor to scalar ratio, 3 × 10-11≲ r≲ 7× 10-4 (6 × 10-7≲ r ≲ 0.01), and the running of the scalar spectral index, -0.00022 ≲ dn_s/dln k ≲ -0.0026 (-0.00014 ≲ dn_s/dln k ≲ 0.005), along with the B-L breaking scale, 3 × 1014≲ M/ GeV≲ 5 × 1015 (6 × 1015≲ M/ GeV≲ 2 × 1016), calculated at the central value of the scalar spectral index, n_s =0.966, reported by Planck 2018. The possibility of realizing metastable cosmic strings in a grand unified theory setup is briefly discussed. The metastable cosmic string network admits string tension values in the range 10-8≲ Gμs ≲ 10-6, and predicts a stochastic gravitational wave background lying within the 2-σ bounds of the recent NANOGrav 12.5-yr data.

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20

Girardelli, David, and Marcelo Guzzo. "Neutrino Non-standard Interactions." Physics Procedia 61 (2015): 704–7. http://dx.doi.org/10.1016/j.phpro.2014.12.083.

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21

Domi, Alba, Simon Bourret, and Liam Quinn. "Particle Physics with ORCA." EPJ Web of Conferences 207 (2019): 04003. http://dx.doi.org/10.1051/epjconf/201920704003.

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KM3NeT is a Megaton-scale neutrino telescope currently under construction at the bottom of the Mediterranean Sea. When completed, it will consist of two separate detectors: ARCA (Astroparticle Research with Cosmics in the Abyss), optimised for high-energy neutrino astronomy, and ORCA (Oscillation Research with Cosmics in the Abyss) for neutrino oscillation studies of atmospheric neutrinos. The main goal of ORCA is the determination of the neutrino mass ordering (NMO). Nevertheless it is possible to exploit ORCA’s configuration to make other important measurements, such as sterile neutrinos, non standard interactions, tau-neutrino appearance, neutrinos from Supernovae, Dark Matter and Earth Tomography studies. Part of these analyses are summarized here.

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22

Hernández-Rey, Juan José, Miguel Ardid, Manuel Bou Cabo, David Calvo, Antonio F. Díaz, Sara Rebecca Gozzini, Juan A. Martínez-Mora, et al. "Science with Neutrino Telescopes in Spain." Universe 8, no. 2 (January 29, 2022): 89. http://dx.doi.org/10.3390/universe8020089.

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The primary scientific goal of neutrino telescopes is the detection and study of cosmic neutrino signals. However, the range of physics topics that these instruments can tackle is exceedingly wide and diverse. Neutrinos coming from outside the Earth, in association with other messengers, can contribute to clarify the question of the mechanisms that power the astrophysical accelerators which are known to exist from the observation of high-energy cosmic and gamma rays. Cosmic neutrinos can also be used to bring relevant information about the nature of dark matter, to study the intrinsic properties of neutrinos and to look for physics beyond the Standard Model. Likewise, atmospheric neutrinos can be used to study an ample variety of particle physics issues, such as neutrino oscillation phenomena, the determination of the neutrino mass ordering, non-standard neutrino interactions, neutrino decays and a diversity of other physics topics. In this article, we review a selected number of these topics, chosen on the basis of their scientific relevance and the involvement in their study of the Spanish physics community working in the KM3NeT and ANTARES neutrino telescopes.

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23

Sanchez Garcia, G. "Using isotopically enriched detectors to perform CEvNS measurements." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012207. http://dx.doi.org/10.1088/1742-6596/2156/1/012207.

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Abstract We propose the use of an array of different isotopically enriched detectors for a precise measurement of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS). We show the impact that correlations between systematic uncertainties can have in different applications. Here we focus on testing the quadratic dependence in the number of neutrons of the CEvNS cross section, the determination of the neutron rms radius of target materials, and constraining Non-Standard Interactions. We exemplify our method with germanium based detectors, but the applicability can be extended to other technologies such as silicon and nickel.

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24

Ribeiro, N. Cipriano, H. Minakata, H. Nunokawa, S. Uchinami, and R. Zukanovich Funchal. "Probing non-standard neutrino interactions with neutrino factories." Journal of High Energy Physics 2007, no. 12 (December 3, 2007): 002. http://dx.doi.org/10.1088/1126-6708/2007/12/002.

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25

Ribeiro, N. Cipriano, H. Minakata, H. Nunokawa, S. Uchinami, and R. Zukanovich Funchal. "Probing non-standard neutrino interactions at neutrino factories." Journal of Physics: Conference Series 136, no. 4 (November 1, 2008): 042092. http://dx.doi.org/10.1088/1742-6596/136/4/042092.

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26

Grossman, Yuval. "Non-standard neutrino interactions and neutrino oscillation experiments." Physics Letters B 359, no. 1-2 (October 1995): 141–47. http://dx.doi.org/10.1016/0370-2693(95)01069-3.

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27

Day, Melanie. "Non-standard neutrino interactions in IceCube." Journal of Physics: Conference Series 718 (May 2016): 062011. http://dx.doi.org/10.1088/1742-6596/718/6/062011.

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28

de Gouvêa, André, and Kevin J. Kelly. "Non-standard neutrino interactions at DUNE." Nuclear Physics B 908 (July 2016): 318–35. http://dx.doi.org/10.1016/j.nuclphysb.2016.03.013.

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29

Ohlsson, Tommy. "Status of non-standard neutrino interactions." Reports on Progress in Physics 76, no. 4 (March 12, 2013): 044201. http://dx.doi.org/10.1088/0034-4885/76/4/044201.

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30

Crawford, David F. "Curvature Pressure in a Cosmology with a Tired-light Redshift." Australian Journal of Physics 52, no. 4 (1999): 753. http://dx.doi.org/10.1071/ph98065.

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A hypothesis is presented that electromagnetic forces that prevent ions from following geodesics result in a curvature pressure that is very important in astrophysics. It may partly explain the solar neutrino deficiency and it may be the engine that drives astrophysical jets. However, the most important consequence is that, under general relativity without a cosmological constant, it leads to a static and stable cosmology. Combining an earlier hypothesis of a gravitational interaction of photons and particles with curved spacetime, a static cosmology is developed that predicts a Hubble constant of H = 60 . 2 km s− 1 Mpc− 1 and a microwave background radiation with a temperature of 3 . 0 K. The background X-ray radiation is explained, and observations of the quasar luminosity function and the angular distribution of radio sources have a better fit with this cosmology than they do with standard big-bang models. Although recent results (Pahre et al . 1996) for the Tolman surface brightness test favour the standard big-bang cosmology, they are not completely inconsistent with a static tired-light model. Most observations that imply the existence of dark matter measure redshift, interpret them as velocities, and invoke the virial theorem to predict masses that are much greater than those deduced from luminosities. If, however, most of these redshifts are due to the gravitational interaction in intervening clouds, no dark matter is required. Observations of quasar absorption lines, a microwave background temperature at a redshift of z = 1 . 9731, type 1a supernovae light curves and the Butcher–Oemler effect are discussed. The evidence is not strong enough to completely eliminate a non-evolving cosmology. The result is a static and stable cosmological model that agrees with most of the current observations.

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MINAKATA, HISAKAZU. "LONG BASELINE NEUTRINO EXPERIMENTS WITH TWO-DETECTOR SETUP." International Journal of Modern Physics A 23, no. 21 (August 20, 2008): 3388–94. http://dx.doi.org/10.1142/s0217751x08042171.

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I discuss why and how powerful is the two-detector setting in neutrino oscillation experiments. I cover three concrete examples: (1) reactor θ13 experiments, (2) T2KK, Tokai-to-Kamioka-Korea two-detector complex for measuring CP violation, determining the neutrino mass hierarchy, and resolving the eight-fold parameter degeneracy, (3) two-detector setting in a neutrino factory at baselines 3000 km and 7000 km for detecting effects of non-standard interactions (NSI) of neutrinos.

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Cardona, Wilmar, and David Figueruelo. "Momentum transfer in the dark sector and lensing convergence in upcoming galaxy surveys." Journal of Cosmology and Astroparticle Physics 2022, no. 12 (December 1, 2022): 010. http://dx.doi.org/10.1088/1475-7516/2022/12/010.

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Abstract We investigated a cosmological model that allows a momentum transfer between dark matter and dark energy. The interaction in the dark sector mainly affects the behaviour of perturbations on small scales while the background evolution matches the wCDM solution. As a result of the momentum transfer, these kinds of models help alleviating the σ 8 discrepancy in the standard model, but do not resolve the so-called H 0 tension. We confirm that this is indeed the case by computing cosmological constraints. While our analysis tends to favour σ 8 values lower than in ΛCDM, we do not find evidence for a non-vanishing momentum transfer in the dark sector. Since upcoming galaxy surveys will deliver information on scales and red-shift relevant for testing models allowing momentum transfer in the dark sector, we also carried out forecasts using different survey configurations. We assessed the relevance of neglecting lensing convergence κ when modelling the angular power spectrum of number counts fluctuations C ℓ ij(z,z'). We found that not including κ in analyses leads to biased constraints (≈ 1-5σ) of cosmological parameters even when including information from other experiments. Incorrectly modelling C ℓ ij(z,z') might lead to spurious detection of neutrino masses and exacerbate discrepancies in H 0 and σ 8.

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Masud, Mehedi, Poonam Mehta, Christoph A. Ternes, and Mariam Tórtola. "A geometrical look at neutrino oscillation probabilities with non-standard interactions." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012102. http://dx.doi.org/10.1088/1742-6596/2156/1/012102.

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Abstract In this talk, we discuss an alternative description of neutrino flavor oscillations using leptonic unitarity triangles (LUT) which allows for geometric visualization of neutrino oscillations. After a brief review of the LUT description of neutrino oscillations for propagation in vacuum and in matter with standard interactions, we discuss how we can extend this approach to describe neutrino oscillations in presence of new physics. We consider non-standard neutrino interactions (NSI) as the toy model of new physics. The content presented in this talk is based on Ref. [1].

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Coloma, Pilar. "Non-Standard neutrino Interactions in propagation at Neutrino Factories." Nuclear Physics B - Proceedings Supplements 217, no. 1 (August 2011): 223–25. http://dx.doi.org/10.1016/j.nuclphysbps.2011.04.108.

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35

Gonzalez-Garcia, M. C., Michele Maltoni, Ivan Martinez-Soler, and Ningqiang Song. "Non-standard neutrino interactions in the earth and the flavor of astrophysical neutrinos." Astroparticle Physics 84 (November 2016): 15–22. http://dx.doi.org/10.1016/j.astropartphys.2016.07.001.

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36

Kharlanov, Oleg, and Pavel Shustov. "Instabilities of Collective Neutrino Oscillations Induced by Non-standard Neutrino Interactions." EPJ Web of Conferences 201 (2019): 09006. http://dx.doi.org/10.1051/epjconf/201920109006.

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We study the effect of non-standard neutrino interactions (NSIs) on the growth of instabilities in neutrino energy spectra of a core-collapse supernova for different neutrino intensities and/or types of NSIs, notably including the exotic neutrino magnetic moment. Although it is usually attested that instabilities virtually smear out all potentially observable signatures, we show that, instead, there are regimes in which they act as a magnifying glass, bringing tiny effects to the eye of the observer.

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37

Pulido, João, and C. R. Das. "Solar neutrinos with non-standard interactions." Nuclear Physics B - Proceedings Supplements 229-232 (August 2012): 563. http://dx.doi.org/10.1016/j.nuclphysbps.2012.10.004.

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38

He, Xiao Gang, and German Valencia. "RK(⁎)ν and non-standard neutrino interactions." Physics Letters B 821 (October 2021): 136607. http://dx.doi.org/10.1016/j.physletb.2021.136607.

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39

Biggio, Carla, Mattias Blennow, and Enrique Fernández-Martínez. "General bounds on non-standard neutrino interactions." Journal of High Energy Physics 2009, no. 08 (August 25, 2009): 090. http://dx.doi.org/10.1088/1126-6708/2009/08/090.

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40

Biggio, Carla, Mattias Blennow, and Enrique Fernandez-Martinez. "Loop bounds on non-standard neutrino interactions." Journal of High Energy Physics 2009, no. 03 (March 27, 2009): 139. http://dx.doi.org/10.1088/1126-6708/2009/03/139.

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41

Gago, A. M., M. M. Guzzo, H. Nunokawa, W. J. C. Teves, and R. Zukanovich Funchal. "Future tests of non-standard neutrino interactions." Nuclear Physics B - Proceedings Supplements 110 (July 2002): 407–9. http://dx.doi.org/10.1016/s0920-5632(02)01524-4.

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42

Gago, A. "Future Tests of Non-Standard Neutrino Interactions." Nuclear Physics B - Proceedings Supplements 110, no. 2 (July 2002): 407–9. http://dx.doi.org/10.1016/s0920-5632(02)80167-0.

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43

Sadhukhan, Soumya. "Role of Charged Scalar in Icecube and NSI." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012235. http://dx.doi.org/10.1088/1742-6596/2156/1/012235.

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Abstract We study a variant of neutrinophilic two-Higgs doublets model to explain excess neutrino events in the 1 – 3 PeV energy bins at the IceCube. This is arranged by a charged scalar in the model, through a Glashow-like resonance. The same charged scalar can generate sizeable non standard interactions (NSIs) of the neutrinos. We perform a combined analysis of the latest IceCube observations, taking into account constraints from the neutrino and LEP experiments, to explore the parameter space leading to sizeable NSIs.

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44

Choubey, Sandhya, and Tommy Ohlsson. "Bounds on non-standard neutrino interactions using PINGU." Physics Letters B 739 (December 2014): 357–64. http://dx.doi.org/10.1016/j.physletb.2014.11.010.

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45

Ota, T. "Non-standard neutrino interactions — future bounds and models." Nuclear Physics B - Proceedings Supplements 188 (March 2009): 217–19. http://dx.doi.org/10.1016/j.nuclphysbps.2009.02.052.

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46

Akhmedov, E. Kh, and T. Schwetz. "New MiniBooNE results and non-standard neutrino interactions." Nuclear Physics B - Proceedings Supplements 217, no. 1 (August 2011): 217–19. http://dx.doi.org/10.1016/j.nuclphysbps.2011.04.106.

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47

Ohlsson, Tommy. "A brief status of non-standard neutrino interactions." Nuclear Physics B - Proceedings Supplements 237-238 (April 2013): 301–7. http://dx.doi.org/10.1016/j.nuclphysbps.2013.04.112.

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48

Huber, P., and J. W. F. Valle. "Non-standard interactions: atmospheric versus neutrino factory experiments." Physics Letters B 523, no. 1-2 (December 2001): 151–60. http://dx.doi.org/10.1016/s0370-2693(01)01319-3.

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49

Choubey, Sandhya, Anushree Ghosh, Tommy Ohlsson, and Deepak Tiwari. "Neutrino physics with non-standard interactions at INO." Journal of High Energy Physics 2015, no. 12 (December 2015): 1–22. http://dx.doi.org/10.1007/jhep12(2015)126.

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50

Mangano, Gianpiero, Gennaro Miele, Sergio Pastor, Teguayco Pinto, Ofelia Pisanti, and Pasquale D. Serpico. "Effects of non-standard neutrino–electron interactions on relic neutrino decoupling." Nuclear Physics B 756, no. 1-2 (November 2006): 100–116. http://dx.doi.org/10.1016/j.nuclphysb.2006.09.002.

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