Relevant bibliographies by topics / QCD axion

Academic literature on the topic 'QCD axion'

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Published: 14 March 2023

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Journal articles on the topic "QCD axion"

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Bonnefoy, Quentin, and Emilian Dudas. "Axions and anomalous U(1)’s." International Journal of Modern Physics A 33, no. 34 (December 10, 2018): 1845001. http://dx.doi.org/10.1142/s0217751x1845001x.

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Inspired by recent studies of high-scale decay constant or flavorful QCD axions, we review and clarify their existence in effective string models with anomalous U(1) gauge groups. We find that such models, when coupled to charged scalars getting vacuum expectation values, always have one light axion, whose mass can only come from nonperturbative effects. If the main nonperturbative effect is from QCD, then it becomes a Peccei–Quinn axion candidate for solving the strong CP problem. We then study simple models with universal Green–Schwarz mechanism and only one charged scalar field: in the minimal gaugino condensation case the axion mass is tied to the supersymmetry breaking scale and cannot be light enough, but slightly refined models maintain a massless axion all the way down to the QCD scale. Both kinds of models can be extended to yield intermediate scale axion decay constants. Finally, we gauge flavorful axion models under an anomalous U(1) and discuss the axion couplings which arise.
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Mazde, Kratika, and Luca Visinelli. "The interplay between the dark matter axion and primordial black holes." Journal of Cosmology and Astroparticle Physics 2023, no. 01 (January 1, 2023): 021. http://dx.doi.org/10.1088/1475-7516/2023/01/021.

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Abstract If primordial black holes (PBHs) had come to dominate the energy density of the early Universe when oscillations in the axion field began, we show that the relic abundance and expected mass range of the QCD axion would be greatly modified. Since the QCD axion is a potential candidate for dark matter (DM), we refer to it as the DM axion. We predominantly explore PBHs in the mass range (106 - 5× 108)g. We investigate the relation between the relic abundance of DM axions and the parameter space of PBHs. We numerically solve the set of Boltzmann equations, that governs the cosmological evolution during both radiation and PBH-dominated epochs, providing the bulk energy content of the early Universe. We further solve the equation of motion of the DM axion field to obtain its present abundance. Alongside non-relativistic production mechanisms, light QCD axions are generated from evaporating PBHs through the Hawking mechanism and could make up a fraction of the dark radiation (DR). If the QCD axion is ever discovered, it will give us insight into the early Universe and probe into the physics of the PBH-dominated era. We estimate the bounds on the model from DR axions produced via PBH evaporation and thermal decoupling, and we account for isocurvature bounds for the period of inflation where the Peccei-Quinn symmetry is broken. We assess the results obtained against the available CMB data and we comment on the forecasts from gravitational wave searches. We briefly state the consequences of PBH accretion and the uncertainties this may further add to cosmology and astroparticle physics modeling.
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Lombardo, Maria Paola, and Anton Trunin. "Topology and axions in QCD." International Journal of Modern Physics A 35, no. 20 (July 15, 2020): 2030010. http://dx.doi.org/10.1142/s0217751x20300100.

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QCD axions are at the crossroads of QCD topology and Dark Matter searches. We present here the current status of topological studies on the lattice, and their implication on axion physics. We outline the specific challenges posed by lattice topology, the different proposals for handling them, the observable effects of topology on the QCD spectrum and its interrelation with chiral and axial symmetries. We review the transition to the quark–gluon plasma, the fate of topology at the transition, and the approach to the high temperature limit. We discuss the extrapolations needed to reach the regime of cosmological relevance, and the resulting constraints on the QCD axion.
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Rosenberg, Leslie J. "Dark-matter QCD-axion searches." Proceedings of the National Academy of Sciences 112, no. 40 (January 12, 2015): 12278–81. http://dx.doi.org/10.1073/pnas.1308788112.

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In the late 20th century, cosmology became a precision science. Now, at the beginning of the next century, the parameters describing how our universe evolved from the Big Bang are generally known to a few percent. One key parameter is the total mass density of the universe. Normal matter constitutes only a small fraction of the total mass density. Observations suggest this additional mass, the dark matter, is cold (that is, moving nonrelativistically in the early universe) and interacts feebly if at all with normal matter and radiation. There’s no known such elementary particle, so the strong presumption is the dark matter consists of particle relics of a new kind left over from the Big Bang. One of the most important questions in science is the nature of this dark matter. One attractive particle dark-matter candidate is the axion. The axion is a hypothetical elementary particle arising in a simple and elegant extension to the standard model of particle physics that nulls otherwise observable CP-violating effects (where CP is the product of charge reversal C and parity inversion P) in quantum chromo dynamics (QCD). A light axion of mass 10−(6–3) eV (the invisible axion) would couple extraordinarily weakly to normal matter and radiation and would therefore be extremely difficult to detect in the laboratory. However, such an axion is a compelling dark-matter candidate and is therefore a target of a number of searches. Compared with other particle dark-matter candidates, the plausible range of axion dark-matter couplings and masses is narrowly constrained. This focused search range allows for definitive searches, where a nonobservation would seriously impugn the dark-matter QCD-axion hypothesis. Axion searches use a wide range of technologies, and the experiment sensitivities are now reaching likely dark-matter axion couplings and masses. This article is a selective overview of the current generation of sensitive axion searches. Not all techniques and experiments are discussed, but I hope to give a sense of the current experimental landscape of the search for dark-matter axions.
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Barman, Basabendu, Nicolás Bernal, Nicklas Ramberg, and Luca Visinelli. "QCD Axion Kinetic Misalignment without Prejudice." Universe 8, no. 12 (November 29, 2022): 634. http://dx.doi.org/10.3390/universe8120634.

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The axion field, the angular direction of the complex scalar field associated with the spontaneous symmetry breaking of the Peccei–Quinn (PQ) symmetry, could have originated with initial non-zero velocity. The presence of a non-zero angular velocity resulting from additional terms in the potential that explicitly break the PQ symmetry has important phenomenological consequences such as a modification of the axion mass with respect to the conventional PQ framework or an explanation for the observed matter-antimatter asymmetry. We elaborate further on the consequences of the “kinetic misalignment” mechanism, assuming that axions form the entirety of the dark matter abundance. The kinetic misalignment mechanism possesses a weak limit in which the axion field starts to oscillate at the same temperature as in the conventional PQ framework, and a strong limit corresponding to large initial velocities which effectively delay the onset of oscillations. Following a UV-agnostic approach, we show how this scenario impacts the formation of axion miniclusters, and we sketch the details of these substructures along with potential detecting signatures.
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Moore, Guy. "Axion dark matter and the Lattice." EPJ Web of Conferences 175 (2018): 01009. http://dx.doi.org/10.1051/epjconf/201817501009.

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First I will review the QCD theta problem and the Peccei-Quinn solution, with its new particle, the axion. I will review the possibility of the axion as dark matter. If PQ symmetry was restored at some point in the hot early Universe, it should be possible to make a definite prediction for the axion mass if it constitutes the Dark Matter. I will describe progress on one issue needed to make this prediction – the dynamics of axionic string-wall networks and how they produce axions. Then I will discuss the sensitivity of the calculation to the high temperature QCD topological susceptibility. My emphasis is on what temperature range is important, and what level of precision is needed.
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Zhang, Hong. "Axion Stars." Symmetry 12, no. 1 (December 20, 2019): 25. http://dx.doi.org/10.3390/sym12010025.

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The dark matter particle can be a QCD axion or axion-like particle. A locally over-densed distribution of axions can condense into a bound Bose–Einstein condensate called an axion star, which can be bound by self-gravity or bound by self-interactions. It is possible that a significant fraction of the dark matter axion is in the form of axion stars. This would make some efforts searching for the axion as the dark matter particle more challenging, but at the same time it would also open up new possibilities. Some of the properties of axion stars, including their emission rates and their interactions with other astrophysical objects, are not yet completely understood.
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D'Eramo, Francesco, Eleonora Di Valentino, William Giarè, Fazlollah Hajkarim, Alessandro Melchiorri, Olga Mena, Fabrizio Renzi, and Seokhoon Yun. "Cosmological bound on the QCD axion mass, redux." Journal of Cosmology and Astroparticle Physics 2022, no. 09 (September 1, 2022): 022. http://dx.doi.org/10.1088/1475-7516/2022/09/022.

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Abstract We revisit the joint constraints in the mixed hot dark matter scenario in which both thermally produced QCD axions and relic neutrinos are present. Upon recomputing the cosmological axion abundance via recent advances in the literature, we improve the state-of-the-art analyses and provide updated bounds on axion and neutrino masses. By avoiding approximate methods, such as the instantaneous decoupling approximation, and limitations due to the limited validity of the perturbative approach in QCD that forced to artificially divide the constraints from the axion-pion and the axion-gluon production channels, we find robust and self-consistent limits. We investigate the two most popular axion frameworks: KSVZ and DFSZ. From Big Bang Nucleosynthesis (BBN) light element abundances data we find for the KSVZ axion ΔN eff < 0.31 and an axion mass bound ma < 0.53 eV (i.e., a bound on the axion decay constant fa > 1.07 × 107 GeV) both at 95% CL. These BBN bounds are improved to Δ N eff < 0.14 and ma < 0.16 eV (fa > 3.56 × 107 GeV) if a prior on the baryon energy density from Cosmic Microwave Background (CMB) data is assumed. When instead considering cosmological observations from the CMB temperature, polarization and lensing from the Planck satellite combined with large scale structure data we find Δ N eff < 0.23, ma < 0.28 eV (fa > 2.02 × 107 GeV) and ∑ mν < 0.16 eV at 95% CL. This corresponds approximately to a factor of 5 improvement in the axion mass bound with respect to the existing limits. Very similar results are obtained for the DFSZ axion. We also forecast upcoming observations from future CMB and galaxy surveys, showing that they could reach percent level errors for ma ∼ 1 eV.
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Kitajima, Naoya, Kazuhiro Kogai, and Yuko Urakawa. "New scenario of QCD axion clump formation. Part I. Linear analysis." Journal of Cosmology and Astroparticle Physics 2022, no. 03 (March 1, 2022): 039. http://dx.doi.org/10.1088/1475-7516/2022/03/039.

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Abstract The QCD axion acquires the potential through the non-perturbative effect of the QCD matters around the QCD phase transition. During this period, the direct interaction between the axion and the QCD matters sets in. Focusing on the impact of this direct interaction, we propose two scenarios where the fluctuation of the axion can rapidly grow, potentially leading to the formation of axion miniclusters even if the Peccei-Quinn (PQ) symmetry was already broken during inflation. The first scenario assumes that the primordial curvature perturbation at the horizon scale during the QCD epoch was significantly enhanced and the second one assumes that the initial misalignment was tuned around the hilltop of the potential.
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D’Eramo, Francesco. "Thermal Axions: What’s next?" EPJ Web of Conferences 274 (2022): 01007. http://dx.doi.org/10.1051/epjconf/202227401007.

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Scattering and decay processes of thermal bath particles in the early universe can dump relativistic axions in the primordial plasma. If produced with a significant abundance, their presence can leave observable signatures in cosmological observables probing both the early and the late universe. We focus on the QCD axion and present recent and significant improvements for the calculation of the axion production rate across the different energy scales during the expansion of the universe. We apply these rates to predict the abundance of produced axions and to derive the latest cosmological bounds on the axion mass and couplings.
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Dissertations / Theses on the topic "QCD axion"

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Pardo, Vega Javier. "Higgs mass and QCD axion properties at high precision." Doctoral thesis, SISSA, 2016. http://hdl.handle.net/20.500.11767/4902.

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This thesis is dedicated to study the physical properties at high precision of two scalars of well-motivated beyond the standard model theories: the Higgs boson in the Minimal Supersymmetric Standard Model (MSSM) and the axion of the Peccei-Quinn mechanism. The discussion is divided in two parts. We make use of the advantages of the effective field theory framework. In the first part, we consider the state-of-the-art of the effective field theory computation of the MSSM Higgs mass, improving the existing ones by including extra threshold corrections. We perform a detailed estimate of the theoretical uncertainty. We study the large tangent beta region and we put emphasis on the allowed parameter space reproducing the experimental value of the Higgs mass. We present SusyHD, a fast computer code that computes the Higgs mass and its uncertainty for any supersymmetry (SUSY) scale, from the TeV to the Planck scale, even in Split SUSY, both in the DRbar and in the on-shell (OS) schemes. Finally, we apply our results to derive bounds on some well motivated SUSY models, in particular we show how the value of the Higgs mass allows to determine the complete spectrum in minimal gauge mediation. In the second part, we discuss how to extract several properties of the axion of Quantum Chromodynamics (QCD) with great accuracy using only first principle QCD computations. We obtained the axion potential, the mass and the coupling to photons by combining next to leading order (NLO) calculations in chiral perturbation theory (ChPT) with recent Lattice QCD results. Axion-nucleon interactions are also derived reliably. The method we have followed allows to further improve the precision as uncertainties on the light quark masses and the effective field theory couplings are reduced. We have also studied the finite temperature dependence of the axion potential and its mass, in connection with its role in determining the axion relic abundance.
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Wantz, Olivier. "The instanton liquid and the axion." Thesis, University of Cambridge, 2010. https://www.repository.cam.ac.uk/handle/1810/225235.

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The ultimate goal of this thesis is to improve our understanding of the cosmology of axions. Axions couple to QCDinstantons and these non-perturbative effects are modeled within the framework of the interacting instanton liquid model (IILM). The thesis describes the significant advances made within the IILM in order to study the quark-gluon plasma in realistic parameter regimes. In particular, a determination of the temperature-dependent axion mass in the IILM lays the foundation for a critical reevaluation and update of present cosmological axion constraints. We develop grand canonical Monte Carlo routines to study topological fluctuations in the quark-gluon plasma. The model is calibrated against the topological susceptibility at zero temperature, in the chiral regime of physical quark masses. A numerical framework to derive interactions among the pseudo-particles is developed that is in principle exact, and is used to cure a pathology in the presently available finite temperature interactions. The IILM reduces field theory to a molecular dynamics description, and we show that, quite generically, the dynamics for non-trivial backgrounds in the presence of light quarks is reminiscent of a strongly associating fluid. To deal with the well-known difficulty in simulating ionic fluids, we develop advanced algorithms based on Biased Monte Carlo techniques. We study the IILM at finite temperature in the quenched and unquenched sector, with due diligence to a consistent thermodynamic limit. Of particular interest is chiral symmetry breaking and the temperature dependence of the topological susceptibility, and we study in detail the effects of instanton--anti-instanton pairs. Our determination of the topological susceptibility provides, for the first time, a well-motivated axion mass for all temperatures. The misalignment mechanism for axion production is studied in detail, solving the evolution equations exactly in a radiation dominated FRW universe with the full temperature dependence of the effective degrees of freedom taken into account. Improved constraints in the classic and anthropic axion window are derived. We generalise the latter to large angle fine-tuning by including in the isocurvature contribution to the cosmic microwave background radiation the full anharmonic axion potential effects. Finally, we reexamine bounds from axion string radiation in the thermal scenario to complete a comprehensive update of all cosmological axion constraints.
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Liang, Xunyu. "Axion field and the quark nugget's formation at the QCD phase transition." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58927.

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We study a testable dark matter (DM) model outside of the standard WIMP paradigm in which the observed ratio Ωdark ≃ Ω visible for visible and dark matter densities finds its natural explanation as a result of their common QCD origin when both types of matter (DM and visible) are formed at the QCD phase transition and both are proportional to ΛQCD. Instead of the conventional ``baryogenesis" mechanism we advocate a paradigm when the ``baryogenesis'' is actually a charge separation process which occur in the presence of the CP odd axion field a(x). In this scenario the global baryon number of the Universe remains zero, while the unobserved antibaryon charge is hidden in form of heavy nuggets, similar to Witten's strangelets and compromise the DM of the Universe. In the present work we study in great detail a possible formation mechanism of such macroscopically large heavy objects. We argue that the nuggets will be inevitably produced during the QCD phase transition as a result of Kibble-Zurek mechanism on formation of the topological defects during a phase transition. Relevant topological defects in our scenario are the closed bubbles made of the NDW=1 axion domain walls. These bubbles, in general, accrete the baryon (or antibaryon) charge, which eventually result in formation of the nuggets and anti-nuggets carrying a huge baryon (anti-baryon) charge. A typical size and the baryon charge of these macroscopically large objects is mainly determined by the axion mass ma. However, the main consequence of the model, Ωdark ≈ Ωvisible is insensitive to the axion mass which may assume any value within the observationally allowed window 10-⁶ eV ≲ ma ≲ 10-³ eV. We also estimate the baryon to entropy ratio η ≡ nB/nγ ∼ 10-¹⁰ within this scenario. Finally, we comment on implications of these results to the axion search experiments, including microwave cavity and the Orpheus experiments.
Science, Faculty of
Physics and Astronomy, Department of
Graduate
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Balkin, Reuven [Verfasser], Andreas [Akademischer Betreuer] Weiler, Andreas [Gutachter] Weiler, and Björn [Gutachter] Garbrecht. "Goldstone bosons in the universe: composite dark matter and the QCD axion in neutron stars / Reuven Balkin ; Gutachter: Andreas Weiler, Björn Garbrecht ; Betreuer: Andreas Weiler." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1217783997/34.

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Guénette, Jason. "Conception d'une lentille axicon à gradient d'indice de réfraction GLA (GRIN Lens Axicon)." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/33848.

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Les axicons sont principalement connus pour leur propriété à produire des faisceaux Bessel. Cependant, certains ont également la propriété de produire une focalisation en anneau soit directement ou avec l’ajout d’une lentille. Nous avons analysé la possibilité de faire un axicon avec un profil d’indice de réfraction qui produirait un anneau. Plus précisément, nous avons analysé la possibilité de faire une composante qui incorpore la fonction linéaire d’une lentille conique et la fonction parabolique d'une lentille. Le profil d’indice de réfraction analysé a une variation radiale et permet de produire une focalisation annulaire périodique. Un profil similaire a déjà été étudié sommairement par E. Marchand puis par Rosa M. Gonzalez. Cependant, les solutions proposées par eux sont des solutions approximatives et leur analyse est limitée. Il existe déjà des fibres optiques avec des indices de réfraction semblable à ce que l’on cherche, donc ces axicons ont le potentiel d’être utilisés directement pour une fibre optique. Nous avons déterminé la solution exacte du profil d’indice de réfraction qui permet la focalisation en anneau et nous avons démontré théoriquement que l’anneau produit est de bonne qualité. Nous avons étudié la possibilité de produire un faisceau Bessel à partir de cette composante optique que nous nommons GLA (Grin Lens Axicon) et les simulations montrent que le Faisceau Bessel peut être de très bonne qualité. Des tests expérimentaux ont été faits pour montrer qu’il est possible de produire un faisceau Bessel avec le GLA.
Axicons are mostly known for their capacity to produce Bessel beam. However, some axicon has the propriety to produce annular focusing whether directly or by adding a lens. In this text we have study the possibility to produce an axicon with gradient index of refraction that produce an annular focusing. More precisely we study the possibility to produce a component which incorporates the linear function of a conical lens and the parabolic function of a lens. The study refraction index profile has a radial variation and allow to a periodic annular focalisation. A similar refractive index profile has already been study by E. Marchand then by Rosa M. However, the solutions proposed by them are approximate solutions and their studies are limited. Some optical fiber already has index profile like the one we are interest so this axicon have the potential to be use for optical fiber application. We have demonstrated theoretically the exact refractive index profile that produce annular focusing and we have demonstrated theoretically that the ring produce is of good quality. We have also studied the possibility to produce a Bessel beam with this device that we name GLA (Grin Lens Axicon) and the simulation show that the beam could be of excellent quality. Some experimental tests have been done to show that it is possible to produce a Bessel beam with a GLA.
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Drapeau, Julie. "Axicon conique à angle variable à base de ferrofluide." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27326/27326.pdf.

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Jerhot, Jan. "Search for Axion-Like Particles at the NA62 experiment." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-397715.

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The thesis instructively presents axions and axion-like particles as a plau- sible extension of the Standard Model of particle physics and discusses also the cosmological implications in the case of their existence as they present one of the most favourable dark matter candidates at given circumstances. The main part of the thesis is concerned with a search for axion-like particles at the NA62 experiment at CERN and a study of the gathered data and its impact on the data analysis.
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Books on the topic "QCD axion"

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Kachelriess, Michael. Anomalies, instantons and axions. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198802877.003.0017.

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The axial anomaly is derived both from the non-invariance of the path-integral measure under UA(1) transformations and calculations of specific triangle diagrams. It is demonstrated that the anomalous terms are cancelled in the electroweak sector of the standard model, if the electric charge of all fermions adds up to zero. The CP-odd term F̃μν‎Fμν‎ introduced by the axial anomaly is a gauge-invariant renormalisable interaction which is also generated by instanton transitions between Yang–Mills vacua with different winding numbers. The Peceei–Quinn symmetry is discussed as a possible explanation why this term does not contribute to the QCD action.
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Book chapters on the topic "QCD axion"

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Kim, Jihn E. "QCD Axion and Quintessential Axion." In Beyond the Desert 2003, 655–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18534-2_43.

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Jackson Kimball, Derek F., Leanne D. Duffy, and David J. E. Marsh. "Ultralight Bosonic Dark Matter Theory." In The Search for Ultralight Bosonic Dark Matter, 31–72. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95852-7_2.

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AbstractThe basic theoretical concepts motivating the hypothesis that dark matter may consist of ultralight spin-0 or spin-1 bosons are explored. The origin of bosons with masses ≪ 1 eV from spontaneous and explicit symmetry breaking is illustrated with examples. The origins and characteristics of nongravitational couplings or “portals” between ultralight bosons and Standard Model particles and fields are considered, with particular attention paid to the cases of the axion-photon and axion-fermion interactions. Theoretical motivations for the existence of ultralight bosons, besides as an explanation of dark matter, are examined, with particular focus on the Peccei-Quinn solution to the strong CP problem (resulting in the QCD axion) and a dynamical solution to the hierarchy problem (the “relaxion” hypothesis, based on a particular axion-Higgs coupling in the early universe). Mechanisms for non-thermal production of ultralight bosonic dark matter are examined.
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Carosi, Gianpalo, Raphael Cervantes, Seth Kimes, Parashar Mohapatra, Rich Ottens, and Gray Rybka. "Orpheus: Extending the ADMX QCD Dark-Matter Axion Search to Higher Masses." In Microwave Cavities and Detectors for Axion Research, 169–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43761-9_20.

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Geraci, Andrew A., and Yun Chang Shin. "Laboratory Searches for Exotic Spin-Dependent Interactions." In The Search for Ultralight Bosonic Dark Matter, 219–53. Cham: Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-030-95852-7_8.

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AbstractThe possible existence of exotic spin-dependent interactions with ranges from the subatomic scale to astrophysical scales has been of great theoretical interest for the last few decades. Typically, these exotic interactions are mediated by ultralight bosons with very weak coupling strength. If they indeed exist, such long-range interactions would indicate new physics beyond the Standard Model. A wide variety of experimental tests have been made to search for novel long-range spin-dependent interactions. Most experimental searches have focused on monopole-dipole or dipole-dipole interactions that could be induced by the exchange of ultralight bosons such as axions or axionlike particles. These ultralight bosons could also provide an answer to some of the most challenging problems in modern particle physics and astronomy: for example, the strong-CP problem in quantum chromodynamics (QCD), where C represents the charge conjugate symmetry and P represents the parity symmetry, and the explanation of dark matter and dark energy. In this chapter, we discuss the theoretical motivations as well as experimental searches for exotic spin-dependent interactions mediated by ultralight bosons in recent decades. We also introduce ongoing experimental efforts, such as Axion Resonant InterAction DetectioN Experiment (ARIADNE) and the QUest for AXion (QUAX)-gsgp experiment. The high sensitivities of these tests will allow vast expansion of the discovery potential for exotic spin-dependent interactions.
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Conference papers on the topic "QCD axion"

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Choi, Kiwoon. "QCD axion and dark matter." In The 3rd International Symposium on “Quest for the Origin of Particles and the Universe". Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.294.0021.

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Berkowitz, Evan. "Lattice QCD and Axion Cosmology." In The 33rd International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.251.0236.

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Martinelli, Guido, Claudio Bonati, Massimo D'Elia, Marco Mariti, Michele Mesiti, Francesco Negro, Francesco Sanfilippo, and Giovanni Villadoro. "Axion phenomenology and lattice QCD." In 34th annual International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.256.0088.

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Kim, Jihn E., and Se-Jin Kim. ""Invisible" axion rolling through QCD phase transition." In Corfu Summer Institute 2018 "School and Workshops on Elementary Particle Physics and Gravity". Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.347.0052.

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Sokolov, Anton, and Andreas Ringwald. "Magnetic anomaly coefficients for QCD axion couplings." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.398.0178.

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Flacke, Thomas. "A QCD axion from a warped extra dimension." In Cargèse Summer School: Cosmology and Particle Physics Beyond the Standard Models. Trieste, Italy: Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.049.0014.

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Hernández Hernández, José Javier, Bastian Brandt, Francesca Cuteri, Gergely Endrodi, and Gergely Marko. "QCD topology with electromagnetic fields and the axion-photon coupling." In The 39th International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2023. http://dx.doi.org/10.22323/1.430.0174.

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Kim, Jihn E. "Anomalous gauge-U(1), ’t Hooft mechanism, and “invisible” QCD axion from string." In Corfu Summer Institute 2017 "Schools and Workshops on Elementary Particle Physics and Gravity". Trieste, Italy: Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.318.0202.

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Kutlu, Caglar, Soohyung Lee, Sergey V. Uchaikin, Saebyeok Ahn, Sungjae Bae, Junu Jeong, Sungwoo Youn, et al. "Search for QCD axion dark matter around 24.5 μeV using an 8-cell microwave resonant cavity haloscope and a flux-driven Josephson parametric amplifier." In 41st International Conference on High Energy physics. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.414.0092.

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10

Urban, Federico R., Ariel R. Zhitnitsky, David B. Tanner, and Karl A. van Bibber. "Dark energy from QCD." In AXIONS 2010: Proceedings of the International Conference. AIP, 2010. http://dx.doi.org/10.1063/1.3489558.

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Reports on the topic "QCD axion"

1

Fox, P. Probing a QCD String Axion with Precision Cosmological Measurements. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/833013.

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Lee, S. A., W. M. Jr Fairbank, W. H. Toki, J. L. Hall, P. F. Jr Kraushaar, and T. S. Jaffery. Measurement of the magnetically-induced QED birefringence of the vacuum and an improved search for laboratory axions: Technical report. Project definition study of the use of assets and facilities of the Superconducting Super Collider Laboratory. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/10107194.

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You might also be interested in the extended bibliographies on the topic 'QCD axion' for particular source types:
Journal articles
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