Results 61 to 70 of about 4,809 (187)

Mass Spectra, Radii, and Decay Widths of Toponium

Advances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, the radial Schrodinger equation with a nonrelativistic quark potential model (NRQPM) is solved numerically by employing the shooting method. Calculated numerical wave functions (or solutions) are used to compute the masses, root mean square (RMS) radii, E1, M1 radiative transition widths, annihilation decay widths, and branching ratios of
Nosheen Akbar, Ishrat Asghar, Zaki Ahmad, Adnan Malik   +3 more
wiley   +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

Electroweak Lepton-Lepton and Lepton-Antilepton Bound States

, 1999
In model independent way we consider the possibility of the existence of fermion-antifermion, fermion-fermion bound states which appear due to $γ, Z^0(W^{\pm}$-bosons and scalar, pseudoscalars exchanges including radiative corrections. Our consideration includes the case where at least one particle in the bound state is Majorana fermion or scalar.This ...
openaire   +2 more sources

Probing lepton universality with (semi)-leptonic B decays [PDF]

SciPost Physics Proceedings, 2019
The most recent measurements of the observables R_{D^{(*)}} R D
Giovanni Banelli, Robert Fleischer, Ruben Jaarsma, Gilberto Tetlalmatzi-Xolocotzi   +3 more
openaire   +3 more sources

A Superalgebra Within: Representations of Lightest Standard Model Particles Form a Z25$\mathbb {Z}_2^5$‐Graded Algebra

Annalen der Physik, Volume 537, Issue 12, December 2025.
 A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley   +1 more source

Heavy leptons, lepton mixing, and nonconservation of lepton-type number

Physics Letters B, 1977
Abstract Introducing a new weak doublet of heavy leptons, one is led to a mixing of the various lepton states with respect to the weak interaction and subsequently to the violation of electron and muon number conservation (e.g., the decay μ →e γ ). The new charged lepton can only decay via such a mixing and is therefore relatively long-lived ( τ >10
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

Transcriptomic Diversity of Pediatric Acute Myeloid Leukemia Genetic Drivers Correlates With Clinical Outcome and Expression of Stemness‐Related Genes

Cancer Medicine, Volume 14, Issue 21, November 2025.
ABSTRACT Background Pediatric acute myeloid leukemia (pAML) is comprised of a diverse set of oncogenic drivers (ODs) that have been risk‐stratified to inform prognosis and therapeutic decision‐making. Despite proteomic, transcriptomic, genetic, and epigenetic characterization of the pAML landscape, questions still remain about why certain ODs have ...
Quenton Rashawn Bubb, Elena Sotillo, Rebecca M. Richards, Crystal L. Mackall, Tanja A. Gruber, Agnieszka Czechowicz   +5 more
wiley   +1 more source

The Curious Concept That Almost Nobody Seemed to Care About at First: Virtual Particles in the Post‐War Period**

Berichte zur Wissenschaftsgeschichte, Volume 48, Issue 1-2, Page 143-162, August 2025.
Abstract Short‐lived, unobservable, and not subject to the usual rules of conservation of energy and momentum, virtual particles—an integral part of the conceptual framework of quantum field theory (QFT)—exhibit a number of curious characteristics which, in recent decades, have in part fueled important discussions about their ontological status ...
Jean‐Philippe Martinez
wiley   +1 more source

Drag force and heavy quark potential in a rotating background

Journal of High Energy Physics
We explored the gravity dual of a rotating quark-gluon plasma by transforming the boundary coordinates of the large black hole limit of Schwarchild-AdS5 metric.
Jun-Xia Chen, De-Fu Hou, Hai-Cang Ren
doaj   +1 more source