Results 21 to 30 of about 13,384 (274)
CP violation in D-meson decays
EPJ Web of Conferences, 2014 Since most probably Standard Model cannot explain large value of CP asymmetries recently observed in D-meson decays the fourth quark-lepton generation explanation of it is proposed.
Vysotsky M.I.
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Journal of High Energy Physics, 2023 CP violation plays a very important role in nature with implications both for Particle Physics and for Cosmology. Accounting for the observed matter-antimatter asymmetry of the Universe requires the existence of new sources of CP violation beyond the ...
A. Kunčinas +3 more
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, 1998 $B$ flavor tagging will be extensively studied at the asymmetric $B$ factories due to its importance in CP asymmetry measurements. The primary tagging modes are the semileptonic decays of the $b$ (lepton tag), or the hadronic $b \to c (\to s)$ decays (kaon tag). We suggest that looking for time dependent CP asymmetries in events where one $B$ is tagged
Grossman, Y +2 more
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CPT and CP, an entangled couple
Journal of High Energy Physics, 2020 Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet.
Gabriela Barenboim +2 more
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Fingerprinting CP-violating New Physics with B → Kμ + μ −
Journal of High Energy Physics, 2023 The B → Kℓ + ℓ − system is particularly interesting to explore physics beyond the Standard Model. Such effects could provide new sources of CP violation, thereby giving rise to Wilson coefficients which could not only be real, as assumed in most analyses,
Robert Fleischer +3 more
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Leptogenesis from low energy CP violation
Journal of High Energy Physics, 2019 We revisit the possibility of producing the observed baryon asymmetry of the Universe via thermal leptogenesis, where CP violation comes exclusively from the low-energy phases of the neutrino mixing matrix.
K. Moffat +3 more
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CP violation at the finite temperature
Physics Letters B, 2019 In this letter we explore the CP violation at the finite temperature. We show that a spontaneous CP-violating phase φ may arise at the temperature of the electroweak phase transition, and φ can provide a source term for generating the matter-antimatter ...
Wei Chao
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Nuclear Physics B - Proceedings Supplements, 1998 13 pages, To appear in Proceedings of the Fifth Topical Seminar on The Irresistible Rise of the Standard Model, San Miniato al Todesco, Italy, April 21-25 ...
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A U-spin anomaly in charm CP violation
Journal of High Energy Physics, 2023 Recent LHCb data shows that the direct CP asymmetries of the decay modes D 0 → π + π − and D 0 → K + K − have the same sign, violating an improved U-spin limit sum rule in an unexpected way at 2.1σ.
Stefan Schacht
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CP violation in η muonic decays
Journal of High Energy Physics, 2019 In this study, we investigate the imprints of CP violation in certain η muonic decays that could arise within the Standard Model effective field theory.
Pablo Sanchez-Puertas
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