Results 21 to 30 of about 57,829 (262)
Mixing of Pseudoscalar Mesons [PDF]
Physica Scripta, 2002 21 pages, 6 figures, Proc.
Th. Feldmann, P. Kroll
openaire +3 more sources
Search for dark photons in heavy‐ion collisions
Astronomische Nachrichten, Volume 344, Issue 1-2, January-February 2023., 2023 Abstract The vector U‐bosons, or so‐called “dark photons,” are one of the possible candidates for the dark matter mediators. They are supposed to interact with the standard matter via a “vector portal” due to the U(1)−U(1)′$$ U(1)-U{(1)}^{\prime } $$ symmetry group mixing which might make them visible in particle and heavy‐ion experiments.
Elena Bratkovskaya +3 more
wiley +1 more source
Poincaré-covariant quark model of electroweak light mesons decays [PDF]
EPJ Web of Conferences, 2019 The procedure for obtaining the radiative decay constants of pseudoscalar and vector unflavored mesons in point–form of Poincaré-invariant quantum mechanics is presented.
Andreev Viktor, Haurysh Vadzim
doaj +1 more source
Contributions of K0∗1430 and K0∗1950 in the Charmed Three‐Body B Meson Decays
Advances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023 In this work, we investigate the resonant contributions of K0∗1430 and K0∗1950 in the three‐body B(s)⟶D(s)Kπ within the perturbative QCD approach. The form factor Fkπ(s) is adopted to describe the nonperturbative dynamics of the S‐wave Kπ system. The branching ratios of all concerned decays are calculated and predicted to be in the order of 10−10 to 10−
Bo-Yan Cui +2 more
wiley +1 more source
B⟶P, V Form Factors with the B‐Meson Light‐Cone Sum Rules
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In this review, we discuss the calculation of the B⟶P, V form factors within the framework of the light‐cone sum rules with the light‐cone distribution amplitudes of the B‐meson. A detailed introduction to the definition, scale evolution, and phenomenological models of the B‐meson distribution amplitudes is presented.
Yue-Long Shen, Yan-Bing Wei, Shuai Zhao
wiley +1 more source
Decay of the pseudoscalar glueball into scalar and pseudoscalar mesons [PDF]
Physical Review D, 2013 We study a chiral Lagrangian which describes the two- and three-body decays of a pseudoscalar glueball into scalar and pseudoscalar mesons. The various branching ratios are a parameter-free prediction of our approach. We compute the decay channels for a pseudoscalar glueball with a mass of 2.6 GeV, as predicted by Lattice QCD in the quenched ...
Dirk H. Rischke +4 more
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Charmless Quasi‐Two‐Body B Decays in Perturbative QCD Approach: Taking B⟶KR⟶K+K− as Examples
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 Three‐body B decays not only significantly broaden the study of B meson decay mechanisms but also provide information of resonant particles. Because of complicate dynamics, it is very hard for us to study the whole phase space in a specific approach. In this review, we take B⟶KR⟶K+K− decays as examples and show the application of the perturbative QCD ...
Wen-Feng Liu +3 more
wiley +1 more source
Calculated Event Rates for Axion Detection via Atomic and Nuclear Processes
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 The possibility of detection of 5.5 MeV and 14.4 keV solar axions by observing axion‐induced nuclear and atomic transitions is investigated. The presence of nuclear transitions between spin orbit partners can be manifested by the subsequent deexcitation via gamma ray emissions.
John D. Vergados +3 more
wiley +1 more source
Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ
Journal of High Energy Physics, 2021 A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y.
Wen Qin, Ling-Yun Dai, Jorge Portolés
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Relaxing the W′ Constraint on Compact Extradimension
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In this paper, we study the constraint on brane tension and compactification scale for models with brane fluctuations using the results from the direct search of W′ at 13 TeV LHC, with an integrated luminosity of 36.1fb−1, in the case for which branon forms the entire cold dark matter.
Mathew Thomas Arun +1 more
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