Results 61 to 70 of about 161,169 (272)

Mass splitting and spin alignment for $$\phi $$ ϕ mesons in a magnetic field in NJL model

European Physical Journal C: Particles and Fields
Based on the Nambu–Jona–Lasinio (NJL) model, we develop a framework for calculating the spin alignment of vector mesons and applied it to study $$\phi $$ ϕ mesons in a magnetic field.
Xin-Li Sheng, Shu-Yun Yang, Yao-Lin Zou, Defu Hou   +3 more
doaj   +1 more source

RD*,RK* $$ {R}_{D^{\left(*\right)}},{R}_{K^{\left(*\right)}} $$ and neutrino mass in the 2HDM-III with right-handed neutrinos

Journal of High Energy Physics, 2018
Given that the two-Higgs-doublet model of type III (2HDM-III) has the potential to address the RD* $$ {R}_{D^{\left(*\right)}} $$ anomalies while the resolution to the RK* $$ {R}_{K^{\left(*\right)}} $$ deficits requires new degrees of freedom within ...
Shao-Ping Li, Xin-Qiang Li, Ya-Dong Yang, Xin Zhang   +3 more
doaj   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

Mass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

Phenomenological anatomy of top-quark FCNCs induced by a light scalar singlet

Journal of High Energy Physics
Scalar singlets under the Standard Model gauge group appear naturally in many well-motivated New Physics scenarios, such as the composite Higgs models. Unlike the Higgs boson in the Standard Model, they can induce large flavour-changing neutral currents (
Biao-Feng Hou, Xin-Qiang Li, Ya-Dong Yang, Xing-Bo Yuan, Ming-Wang Zhang   +4 more
doaj   +1 more source

B s(d) − B ¯ $$ \overline{B} $$ s(d) mixing and B s → μ + μ − decay in the NMSSM with the Flavour Expansion Theorem

Journal of High Energy Physics, 2019
In this paper, motivated by the observation that the Standard Model predictions are now above the experimental data for the mass difference ΔM s(d), we perform a detailed study of B s(d) − B ¯ $$ \overline{B} $$ s(d) mixing and B s → μ + μ − decay in the
Quan-Yi Hu, Xin-Qiang Li, Ya-Dong Yang, Min-Di Zheng   +3 more
doaj   +1 more source

New physics in the angular distribution of B c − $$ {B}_c^{-} $$ → J/ψ(→ μ + μ − )τ − (→ π − ν τ ) ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ decay

Journal of High Energy Physics, 2021
In B c − $$ {B}_c^{-} $$ → J/ψ(→ μ + μ − )τ − ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ decay, the three-momentum p τ − $$ {\boldsymbol{p}}_{\tau^{-}} $$ cannot be determined accurately due to the decay products of τ − inevitably include an undetected ν τ ...
Quan-Yi Hu, Xin-Qiang Li, Xiao-Long Mu, Ya-Dong Yang, Dong-Hui Zheng   +4 more
doaj   +1 more source

The (ir)Relevance of Initial Conditions in Soft Leptogenesis

, 2008
We explore how the initial conditions affect the final lepton asymmetry in Soft Leptogenesis. It has been usually assumed that the initial state is a statistical mixture of sterile sneutrinos and anti-sneutrinos with equal abundances.
Bahat-Treidel, Omri, Surujon, Ze'ev
core   +1 more source

Leptonic Scalars versus Scalar Leptons [PDF]

Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019), 2020
The notion of scalars having lepton number, i.e. leptonic scalars, is discussed without supersymmetry, where scalar leptons reside. It is shown how dark parity comes from lepton parity, as well as its possible origin from grand unification. Two specific phenomenological applications to dark matter are described.
openaire   +1 more source

Precise Measurements of the Leptonic Branching Ratios of the Tau Lepton [PDF]

Physical Review Letters, 1985
Precise measurements are reported for the leptonic branching ratios of the T lepton from the reaction e+e+ T+Tobserved with the MAC detector operating at PEP. Results from samples in which one T decays into three charged particles and the other to e or /,L are B, = 0.180 f 0.009 f 0.006 and B, = 0.183f0.009f0.005.
, Ash, , Band, , Blume, , Camporesi, , Chadwick, , Coombes, , Delfino, , Fernandez, , Ford, , Gettner, , Goderre, , Groom, , Heltsley, , Hurst, , Johnson, , Lau, , Lavine, , Leedy, , Lippi, , Maruyama, , Messner, , Moromisato, , Moss, , Muller, , Nelson, , Peruzzi, , Piccolo, , Prepost, , Qi, , Read, , Ritson, , Rosenberg, , Shambroom, , Sleeman, , Smith, , Venuti, , von Goeler E, , Verdini, , Wald, , Weinstein, , Wiser, , Zdarko   +41 more
openaire   +2 more sources

Neutrinoloser Doppelbetazerfall: Der Gral der Neutrinophysik

Physik in unserer Zeit, Volume 56, Issue 3, Page 132-137, May 2025.
Die Entschlüsselung der Neutrinoeigenschaften ist auch siebzig Jahre nach ihrer Entdeckung noch nicht abgeschlossen. Es wäre eine spektakuläre Entdeckung, sollten Neutrinos ihre eigenen Antiteilchen sein und sich folglich als Majorana‐Teilchen entpuppen. Mehrere Experimente untersuchen diese Möglichkeit.
Bernhard Schwingenheuer
wiley   +1 more source