Results 1 to 10 of about 92,579 (147)

Masses of scalar and axial-vector B mesons revisited [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
The SU(3) quark model encounters a great challenge in describing even-parity mesons. Specifically, the $$q\bar{q}$$ qq¯ quark model has difficulties in understanding the light scalar mesons below 1 GeV, scalar and axial-vector charmed mesons and $$1 ...
Hai-Yang Cheng, Fu-Sheng Yu
doaj   +4 more sources

Heavy-Meson Decay Constants: QCD Sum-Rule Glance at Isospin Breaking

open access: yesEPJ Web of Conferences, 2016
QCD sum rules for decay constants of heavy mesons with u or d quark yield for B mesons much less isospin breaking than lattice QCD but good agreement for D mesons.
Lucha Wolfgang   +2 more
doaj   +2 more sources

Spectroscopic survey of higher-lying states of $$B_c$$ B c meson family

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this work, we investigate the complete spectroscopy of the $$B_c$$ B c mesons, with a special focus on the consideration of the unquenched effects.
Xue-Jian Li   +3 more
doaj   +1 more source

Flavor hierarchy of jet quenching in relativistic heavy-ion collisions

open access: yesPhysics Letters B, 2020
Relativistic heavy-ion experiments have observed similar quenching effects for (prompt) D mesons compared to charged hadrons for transverse momenta larger than 6-8 GeV, which remains a mystery since heavy quarks typically lose less energies in quark ...
Wen-Jing Xing   +3 more
doaj   +1 more source

Oscillations of B s 0 $$ {B}_s^0 $$ Mesons as a Probe of Decays with Unreconstructed Particles

open access: yesJournal of High Energy Physics, 2020
A new experimental technique to study the decays of B s 0 $$ {B}_s^0 $$ mesons into final states involving unreconstructable particles is proposed.
Anton Poluektov, Adam Morris
doaj   +1 more source

Study of B, $$B_s$$ B s mesons using heavy quark effective theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Inspired by the lower statistical information in the bottom sector, in this paper, we calculate the masses and the strong decays of excited B and $$B_s$$ B s mesons in the framework of heavy quark effective theory (HQET).
Keval Gandhi, Ajay Kumar Rai
doaj   +1 more source

SU(3) Decomposition of Two-Body B Decay Amplitudes [PDF]

open access: yes, 1996
We present the complete flavor SU(3) decomposition of decay amplitudes for decays of the triplet (B^+_u, B^0_d, B^0_s) of B mesons nonleptonically into two pseudoscalar mesons.
A. S. Dighe   +21 more
core   +2 more sources

Strong and electromagnetic decays of the radially excited $$D_s$$ D s and $$B_s$$ B s mesons in light cone QCD sum rules

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Recently, LHCb Collaboration announced the discovery of radial excitations of $$D_s$$ D s and $$B_s$$ B s mesons. In present work, we calculate the most promising strong and electromagnetic decay widths of radially excited $$D_s(2S)$$ D s ( 2 S ) and ...
S. Bilmis
doaj   +1 more source

Distribution amplitudes of heavy mesons and quarkonia on the light front

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
The ladder kernel of the Bethe–Salpeter equation is amended by introducing a different flavor dependence of the dressing functions in the heavy-quark sector. Compared with earlier work this allows for the simultaneous calculation of the mass spectrum and
Fernando E. Serna   +4 more
doaj   +1 more source

Measurement of beauty and charm production in pp collisions at s $$ \sqrt{s} $$ = 5.02 TeV via non-prompt and prompt D mesons

open access: yesJournal of High Energy Physics, 2021
The p T-differential production cross sections of prompt and non-prompt (produced in beauty-hadron decays) D mesons were measured by the ALICE experiment at midrapidity (| y | < 0.5) in proton-proton collisions at s $$ \sqrt{s} $$ = 5.02 TeV.
The ALICE collaboration   +993 more
doaj   +1 more source

Home - About - Disclaimer - Privacy