Results 11 to 20 of about 25,070 (157)
The Low‐Scale Seesaw Solution to the MW$M_W$ and (g−2)μ$(g-2)_\umu$ Anomalies
Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023 Abstract The recent CDF‐II measurement of the W‐boson mass shows a strong tension with the corresponding Standard Model prediction. Once active neutrino masses are explained in the context of the Low‐Scale Seesaw mechanisms, this tension can be resolved.
Arturo de Giorgi +2 more
wiley +1 more source
Probing HNL‐ALP Couplings at Colliders
Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023 Abstract Axion‐like particles (ALPs) and heavy neutral leptons (HNLs) are both well‐motivated extensions of the Standard Model. As ALPs couple to on‐shell fermions proportionally to their masses, processes involving both types of particles may give rise, for TeV HNLs, to relevant phenomenology at colliders.
Arturo de Giorgi +2 more
wiley +1 more source
Improvement of q2 Resolution in Semileptonic Decays Based on Machine Learning
Advances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023 The neutrino closure method is often used to obtain kinematics of semileptonic decays with one unreconstructed particle in hadron collider experiments. The kinematics of decays can be deducted by a twofold ambiguity with a quadratic equation. To resolve the twofold ambiguity, a novel method based on machine learning (ML) is proposed.
Panting Ge +4 more
wiley +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
Optical Excitation of Ultra‐Relativistic Partially Stripped Ions
Annalen der Physik, Volume 534, Issue 3, March 2022., 2022 Implementation of the Gamma Factory (GF) requires identification of ions to be accelerated and stored. It also necessitates development of schemes of ions' efficient excitation. Here, the first systematic studies of the most promising candidates and excitation schemes are presented, providing realistic estimates of energy and flux of GF‐emitted photons.
Jacek Bieroń +3 more
wiley +1 more source
Expanding Nuclear Physics Horizons with the Gamma Factory
Annalen der Physik, Volume 534, Issue 3, March 2022., 2022 The Gamma Factory is an ambitious proposal for a source of photons with energies up to hundreds of MeV and photon fluxes exceeding those of the currently available gamma sources by orders of magnitude. The paper surveys the new opportunities in nuclear physics and related fields that may be afforded by the this facility. Abstract The Gamma Factory (GF)
Dmitry Budker +15 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
Hunting for Direct CP Violation in B¯s0⟶π+π−K∗0
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In perturbative QCD approach, based on the first order of isospin symmetry breaking, we study the direct CP violation in the decay of B¯s0⟶ρωK∗0⟶π+π−K∗0. An interesting mechanism is applied to enlarge the CP violating asymmetry involving the charge symmetry breaking between ρ and ω.
Sheng-Tao Li, Gang Lü, Xin Liu
wiley +1 more source
Studying Same‐Sign Top Pair Production through Top‐Higgs FCNC Interactions at the HL‐LHC
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 We investigate the potential of the HL‐LHC for discovering new physics effects via the same‐sign top pair signatures. We focus on the semileptonic (electron and muon) decay of the top quarks and study the reach for a simplified model approach where top quark flavor changing could occur through a neutral scalar exchange.
O. M. Ozsimsek +3 more
wiley +1 more source
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