Results 1 to 10 of about 122,688 (286)

Vector-meson production and vector meson dominance [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We consider the fidelity of the vector meson dominance (VMD) assumption as an instrument for relating the electromagnetic vector-meson production reaction $$e + p \rightarrow e^\prime + V + p$$ e + p → e ′ + V + p to the purely hadronic process $$V + p ...
Y.-Z. Xu   +5 more
doaj   +2 more sources

Lepton universality violation with lepton flavor conservation in B-meson decays [PDF]

open access: yesJournal of High Energy Physics, 2015
A bstractAnomalies in semileptonic B-meson decays present interesting patterns that might be revealing the shape of the new physics to come. Under the assumption that neutrino and charged lepton mass terms are the only sources of flavor violation and ...
Benjamin Grinstein
exaly   +2 more sources

Towards an automated tool to evaluate the impact of the nuclear modification of the gluon density on quarkonium, D and B meson production in proton–nucleus collisions [PDF]

open access: yesEuropean Physical Journal C, 2016
We propose a simple and model-independent procedure to account for the impact of the nuclear modification of the gluon density as encoded in nuclear collinear PDF sets on two-to-two partonic hard processes in proton–nucleus collisions.
Jean-Philippe Lansberg, Hua-Sheng Shao
exaly   +2 more sources

Meson–nucleus potentials and the search for meson–nucleus bound states [PDF]

open access: yesProgress in Particle and Nuclear Physics, 2017
V. Metag, M. Nanova, E. Paryev
exaly   +2 more sources

Analytical determination of Yukawa Potential: An iterative semiclassical approach [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
In this work we propose an alternative semiclassical iterative approach to obtain the Yukawa Potential, where the temporal evolution is replaced by the number of iterations.
Breno Rodrigues Segatto
doaj   +2 more sources

Precision measurement of the $$ {B}_c^{+} $$ meson mass [PDF]

open access: yesJournal of High Energy Physics, 2020
A precision measurement of the $$ {B}_c^{+} $$ B c + meson mass is performed using proton- proton collision data collected with the LHCb ...
L. C. R. Aaij   +499 more
semanticscholar   +1 more source

B- and D-meson leptonic decay constants from four-flavor lattice QCD [PDF]

open access: yesPhysical Review D, 2018
We calculate the leptonic decay constants of heavy-light pseudoscalar mesons with charm and bottom quarks in lattice quantum chromodynamics on four-flavor QCD gauge-field configurations with dynamical $u$, $d$, $s$, and $c$ quarks. We analyze over twenty
Fermilab Lattice and Milc Collaborations
semanticscholar   +2 more sources

Heavy-quark mesons in the diabatic approach: string breaking and the quarkoniumlike spectrum [PDF]

open access: yesEPJ Web of Conferences, 2022
The Born-Oppenheimer approximation provides a description of heavy-quark mesons firmly based on lattice QCD, but its validity is limited to the lightest states lying far below the first open-flavour meson-meson threshold.
Bruschini Roberto
doaj   +1 more source

B →P and B →V form factors from B-meson light-cone sum rules beyond leading twist [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractWe provide results for the full set of form factors describing semileptonic B-meson transitions to pseudoscalar mesons π, K, D¯$$ \overline{D} $$ and vector mesons ρ, K∗, D¯∗$$ {\overline{D}}^{\ast } $$.
N. Gubernari, A. Kokulu, D. Dyk
semanticscholar   +1 more source

A novel observable for CP violation in multi-body decays and its application potential to charm and beauty meson decays

open access: yesPhysics Letters B, 2021
A novel observable measuring the CP asymmetry in multi-body decays of heavy mesons, which is called the forward-backward asymmetry induced CP asymmetry (FBI-CPA), ACPFB, is introduced. This observable has the dual advantages that 1) it can isolate the CP
Zhen-Hua Zhang
doaj   +1 more source

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