Littérature scientifique sur le sujet « Baryon Asymmetry Universe »
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Articles de revues sur le sujet "Baryon Asymmetry Universe"
Císcar-Monsalvatje, Mar, Alejandro Ibarra et Jérôme Vandecasteele. « Matter-antimatter asymmetry and dark matter stability from baryon number conservation ». Journal of Cosmology and Astroparticle Physics 2024, no 01 (1 janvier 2024) : 028. http://dx.doi.org/10.1088/1475-7516/2024/01/028.
Texte intégralSakharov, Andrei D. « Baryon asymmetry of the universe ». Uspekhi Fizicheskih Nauk 161, no 5 (1991) : 110–20. http://dx.doi.org/10.3367/ufnr.0161.199105o.0110.
Texte intégralSakharov, Andrei D. « Baryon asymmetry of the universe ». Soviet Physics Uspekhi 34, no 5 (31 mai 1991) : 417–21. http://dx.doi.org/10.1070/pu1991v034n05abeh002504.
Texte intégralFeng, Zhong-Wen, Xia Zhou et Shi-Qi Zhou. « Higher-order generalized uncertainty principle applied to gravitational baryogenesis ». Journal of Cosmology and Astroparticle Physics 2022, no 06 (1 juin 2022) : 022. http://dx.doi.org/10.1088/1475-7516/2022/06/022.
Texte intégralFridell, Kåre, Julia Harz et Chandan Hati. « Neutron-antineutron oscillations as a probe of baryogenesis ». Journal of Physics : Conference Series 2156, no 1 (1 décembre 2021) : 012015. http://dx.doi.org/10.1088/1742-6596/2156/1/012015.
Texte intégralBeylin, Vitaly A., Maxim Yu Khlopov et Danila O. Sopin. « Asymmetric Dark Matter in Baryon Asymmetrical Universe ». Symmetry 16, no 3 (6 mars 2024) : 311. http://dx.doi.org/10.3390/sym16030311.
Texte intégralShaposhnikov, M. « Baryon Asymmetry of the Universe and Neutrinos ». Progress of Theoretical Physics 122, no 1 (1 juillet 2009) : 185–203. http://dx.doi.org/10.1143/ptp.122.185.
Texte intégralKawasaki, Masahiro, et Kai Murai. « Lepton asymmetric universe ». Journal of Cosmology and Astroparticle Physics 2022, no 08 (1 août 2022) : 041. http://dx.doi.org/10.1088/1475-7516/2022/08/041.
Texte intégralPETCOV, S. T. « NEUTRINO MIXING, LEPTONIC CP VIOLATION, THE SEESAW MECHANISM AND BEYOND ». International Journal of Modern Physics A 25, no 23 (20 septembre 2010) : 4325–37. http://dx.doi.org/10.1142/s0217751x1005069x.
Texte intégralMahanta, Devabrat, et Debasish Borah. « WIMPy leptogenesis in non-standard cosmologies ». Journal of Cosmology and Astroparticle Physics 2023, no 03 (1 mars 2023) : 049. http://dx.doi.org/10.1088/1475-7516/2023/03/049.
Texte intégralThèses sur le sujet "Baryon Asymmetry Universe"
Sato, Eduardo Akio 1991. « Investigando a influência do setor leptônico em mecanismos de bariogênese ». [s.n.], 2016. http://repositorio.unicamp.br/jspui/handle/REPOSIP/320984.
Texte intégralDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin
Made available in DSpace on 2018-08-31T06:55:32Z (GMT). No. of bitstreams: 1 Sato_EduardoAkio_M.pdf: 2319995 bytes, checksum: fc82384c799d5812bf14a71fe2723e2d (MD5) Previous issue date: 2016
Resumo: Nesta dissertação analiso como uma classe de modelos sugeridos para acomodar neutrinos massivos no modelo padrão, os assim chamados mecanismos seesaw, podem também resolver o problema de assimetria bariônica no universo. Os requisitos mínimos para uma geração dinâmica bem sucedida de assimetria bariônica, conhecidos como condições de Sakharov, são: não conservação de número bariônico, violação de simetria CP e ausência de equilíbrio térmico. Para mostrar que mecanismos seesaw respeitam estas regras, reviso alguns tópicos como: a violação de número bariônico através do processo de sphalerons, a teoria de violação de CP através de invariantes de base fraca e a mecânica estatística de não equilíbrio através da equação de Boltzmann. Como exemplo considero um cenário de mecanismo seesaw tipo I (3+3) com massas de neutrinos estéreis altamente hierárquicas. A assimetria observada impõe um limite inferior na massa dos neutrinos estéreis ($M_1 \geq 8.4 \times 10^{8} \; \text{GeV}$) e um limite superior na massa dos neutrinos ativos ($m_1 < 0.11 \; \text{eV}$), consistente com limites previamente obtidos na literatura
Abstract: In this dissertation I analyse how a class of models suggested to accommodate massive neutrinos in the standard model, the so-called seesaw mechanisms, can also solve the baryon asymmetry of the universe problem. The minimal requisites to a successful dynamical generation of baryon asymmetry, known as Sakharov's conditions, are: Non-conservation of baryon number, violation of CP symmetry and absence of thermal equilibrium. To show that seesaw mechanisms respect those rules, I review some topics such as: the standard model baryon non-conservation via sphalerons process, the theory of CP violation via weak-basis invariants and non-equilibrium statistical physics via Boltzmann equation. As a example I consider a type I (3+3) seesaw mechanism scenario with highly hierarchical sterile neutrino masses and the observed asymmetry impose a lower bound in the sterile neutrino masses ($M_1 \geq 8.4 \times 10^{8} \; \text{GeV}$) and a upper bound in the active neutrino masses ($m_1 < 0.11 \; \text{eV}$), consistent with limits previously obtained in the literature
Mestrado
Física
Mestre em Física
1370441/2014
CAPES
Bouillaud, Thomas. « Le champ magnétique interne de l'expérience n2EDM pour sonder la symétrie CP : calcul du champ magique et maîtrise des non-uniformités ». Electronic Thesis or Diss., Université Grenoble Alpes, 2023. http://www.theses.fr/2023GRALY065.
Texte intégralElectric Dipole Moments (EDMs) in spin 1/2 particles such as the neutron are highlysensitive probes for Charge-Parity (CP) violation Beyond the Standard Model (BSM),one of the requirements needed to fully explain the Baryon Asymmetry of the Uni-verse (BAU). The n2EDM experiment, currently in the commissioning phase at thePaul Scherrer Institute in Switzerland, constitutes a leading effort to search for theneutron EDM. It relies on the principle of submitting spin-polarized Ultra-Cold Neu-trons (UCNs) to parallel electric and magnetic fields and measuring their precessionfrequency. This experiment hopes to achieve a record sensitivity ∆dn ≤ 10−27 e cm,a goal which can only be reached by tackling statistical and systematical uncertain-ties affecting the measurement. The work we present here contributes to the controlof systematic errors generated by non-uniform magnetic fields, through the calcula-tion of a systematic effect and the precise characterization of the internal magneticenvironment.The first part of this thesis motivates and introduces the n2EDM experiment,particularly the theme of magnetic field uniformity. We begin with a review of thetheoretical grounds on which EDM experiments stand, which are prompted by cos-mological observations that CP-violating interactions must exist in nature, and bythe inability of the Standard Model (SM) of particle physics to provide enough ofthese. We then present the n2EDM experiment, which relies at its core on the Ram-sey method of separated rotating magnetic fields to determine the spin-precessionfrequency of UCNs. We finally give the stringent uniformity requirements that theinternal magnetic environment of n2EDM must satisfy, and justify the existence ofnon-uniform contributions by studying the symmetries of the generated field.The second part focuses on the so-called false EDM, a dire systematic effect inn2EDM arising from the unfortunate combination of a relativistic motional field andrandom non-uniformities. We first propose a new frequency-domain derivation ofthe false EDM via the Wiener-Khinchin theorem, before expanding on a recent ap-proach to cancel this effect by tuning the coil-generated field to a “magic value”.We conclude through our alternative calculation of the magic field, and its extensionto dipole-like magnetic contaminations, that it is possible to suppress the total falseEDM by at least one order of magnitude by setting the magnetic field to a value of10.5 μT.The third part relies on magnetic field mapping to estimate and correct non-uniformities responsible for undesirable effects such as the false EDM. After es-tablishing the accuracy of the mapping apparatus and taming unruly residual fieldpatterns, we show through an analysis of the mapping data that the n2EDM mag-netic environment fully satisfies the experiment’s statistical and systematical re-quirements. We finally propose and apply a field optimization strategy to suppressresidual non-uniformities even further. The optimized field generates a negligiblefalse EDM and boasts an unprecedented level of uniformity, with a root mean squaredeviation on the vertical field component σ(Bz) = 35 pT over the neutron’s preces-sion volume
Bachri, Abdel G. « Baryon asymmetry of the universe and neutrino physics ». 2007. http://digital.library.okstate.edu/etd/umi-okstate-2419.pdf.
Texte intégralRamos, Maria Pestana da Luz Pereira. « CPT, Modified Gravity and the Baryon Asymmetry of the Universe ». Master's thesis, 2017. https://repositorio-aberto.up.pt/handle/10216/110574.
Texte intégralRamos, Maria Pestana da Luz Pereira. « CPT, Modified Gravity and the Baryon Asymmetry of the Universe ». Dissertação, 2017. https://repositorio-aberto.up.pt/handle/10216/110574.
Texte intégralChapitres de livres sur le sujet "Baryon Asymmetry Universe"
Rubakov, V. A. « Baryon Asymmetry of the Universe ». Dans Techniques and Concepts of High-Energy Physics, 97–141. Dordrecht : Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0522-7_3.
Texte intégralBiondini, Simone. « Baryon Asymmetry in the Early Universe ». Dans Effective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath, 7–32. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63901-7_2.
Texte intégralFukugita, Masataka, et Tsutomu Yanagida. « Baryon Asymmetry in the Universe and Neutrinos ». Dans Physics of Neutrinos, 487–516. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05119-1_11.
Texte intégralAmusia, Miron Ya, Konstantin G. Popov, Vasily R. Shaginyan et Vladimir A. Stephanovich. « Baryon Asymmetry Resulting from FCQPT in the Early Universe ». Dans Theory of Heavy-Fermion Compounds, 273–83. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10825-4_16.
Texte intégralMukherjee, Ananya. « Origin of Dark Matter and Baryon Asymmetry of the Universe in an $$A_4$$ Flavor Symmetric Neutrino Mass Model ». Dans Springer Proceedings in Physics, 281–87. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6292-1_34.
Texte intégral« Baryon Asymmetry of the Universe ». Dans Particle and Astroparticle Physics, 443–74. CRC Press, 2007. http://dx.doi.org/10.1201/9781584889328-26.
Texte intégral« Baryon Asymmetry of the Universe ». Dans Particle and Astroparticle Physics, 461–78. Taylor & ; Francis, 2007. http://dx.doi.org/10.1201/9781584889328.ch16.
Texte intégral« Generation of Baryon Asymmetry ». Dans Introduction to the Theory of the Early Universe, 313–76. WORLD SCIENTIFIC, 2017. http://dx.doi.org/10.1142/9789813220041_0011.
Texte intégral« Generation of Baryon Asymmetry ». Dans Introduction to the Theory of the Early Universe, 243–99. World Scientific Publishing Company, 2011. http://dx.doi.org/10.1142/9789814322256_0011.
Texte intégralSAKHAROV, A. D. « VIOLATION OF CP-INVARIANCE, C-ASYMMETRY, AND BARYON ASYMMETRY OF THE UNIVERSE ». Dans In the Intermissions…, 84–87. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789812815941_0013.
Texte intégralActes de conférences sur le sujet "Baryon Asymmetry Universe"
SHAPOSHNIKOV, MIKHAIL. « NEUTRINOS, DARK MATTER AND BARYON ASYMMETRY OF THE UNIVERSE ». Dans Proceedings of the 33rd International Conference. World Scientific Publishing Company, 2007. http://dx.doi.org/10.1142/9789812790873_0021.
Texte intégralPeloso, Marco. « Nonperturbative production of fermions and the baryon asymmetry ». Dans Proceedings of the Third International Workshop on Particle Physics and the Early Universe. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812792129_0029.
Texte intégralPetcov, Serguey. « Leptonic CP Violation and the Baryon Asymmetry of the Universe ». Dans 2nd World Summit : Exploring the Dark Side of the Universe. Trieste, Italy : Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.335.0023.
Texte intégralBRUSTEIN, RAM, et DAVID H. OAKNIN. « BARYON NUMBER ASYMMETRY INDUCED BY COHERENT MOTIONS OF A COSMOLOGICAL AXION-LIKE PSEUDOSCALAR ». Dans Proceedings of the Third International Workshop on Particle Physics and the Early Universe. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812792129_0064.
Texte intégralKirilova, Daniela, et Mariana Panayotova. « Baryon asymmetry of the universe generated by scalar field condensate baryogenesis model in different inflationary scenarios ». Dans 10th Jubilee International Conference of the Balkan Physical Union. Author(s), 2019. http://dx.doi.org/10.1063/1.5091231.
Texte intégralCíscar-Monsalvatje, Mar, Alejandro Ibarra et Jérôme Vandecasteele. « The universe could be symmetric : dark matter stability and matter-antimatter asymmetry from baryon number conservation ». Dans XVIII International Conference on Topics in Astroparticle and Underground Physics. Trieste, Italy : Sissa Medialab, 2024. http://dx.doi.org/10.22323/1.441.0007.
Texte intégralSakharov, Alexander. « Macroscopically large antimatter regions in the baryon asymmetric universe ». Dans Cosmology and particle physics. AIP, 2001. http://dx.doi.org/10.1063/1.1363554.
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