Results 31 to 40 of about 714,365 (218)
Improved theory predictions and global analysis of exclusive b → sμ + μ − processes
Journal of High Energy Physics, 2022 We provide improved Standard Model theory predictions for the exclusive rare semimuonic processes B → K (*) μ + μ − and B s → ϕμ + μ − . Our results are based on a novel parametrization of the non-local form factors, which manifestly respects a recently ...
Nico Gubernari +3 more
doaj +1 more source
On bottom mixing with exotic quarks [PDF]
Journal of High Energy Physics, 2000 In this paper we present a calculation of the effects of bottom mixing with new exotic quarks in the forward-backward and left-right asymmetries, the bottom branching ratio and the QCD coupling constant. A global fit with the recent data on these quantities is done and stringent bounds are obtained.
Almeida Jr, F. M. L. de +1 more
openaire +2 more sources
Complete analysis on QED corrections to B q → τ + τ −
Journal of High Energy Physics, 2023 Motivated by a dynamical enhancement of the electromagnetic corrections by a power of ΛQCD/m b in B d,s → μ + μ − at next-to-leading order (NLO), we extend the QED factorization effects on the leptonic B meson decays with light muon leptons to tauonic ...
Yong-Kang Huang +3 more
doaj +1 more source
Color screening and deconfinement for bound states of heavy quarks [PDF]
, 1988 Karsch F, Mehr MT, Satz H. Color screening and deconfinement for bound states of heavy quarks. Zeitschrift für Physik, C: Particles and Fields.
Karsch, Frithjof +3 more
core +1 more source
Heavy quarks and charmonium at RHIC and LHC within a partonic transport model [PDF]
, 2011 Heavy quark and charmonium production as well as their space-time evolution are studied in transport simulations of heavy-ion collisions at RHIC and LHC.
Xu, Zhe +9 more
core +1 more source
Excited bottom and bottom-strange mesons in the quark model [PDF]
Physical Review D, 2016 In order to understand the possible $q\bar{q}$ quark-model assignments of the $B_J(5840)$ and $B_J(5960)$ recently reported by the LHCb Collaboration, we evaluate mass spectra, strong decays, and radiative decays of bottom and bottom-strange mesons in a nonrelativistic quark model.
Lü, Qi-Fang +4 more
openaire +2 more sources
2b or not 2b: on the rejection of g → b b ¯ $$ b\overline{b} $$ jets
Journal of High Energy Physics, 2023 Motivated by new physics models which lead to final states containing a high multiplicity of bottom and top quarks, we develop a tagging strategy to suppress reducible and non-reducible multi-jet backgrounds. The idea takes advantage of the properties of
Beni Pazar, Enrico Lunghi
doaj +1 more source
Threshold corrections to the bottom quark mass revisited [PDF]
Journal of High Energy Physics, 2015 Threshold corrections to the bottom quark mass are often estimated under the approximation that tan$β$ enhanced contributions are the most dominant. In this work we revisit this common approximation made to the estimation of the supersymmetric threshold corrections to the bottom quark mass.
Anandakrishnan, Archana +2 more
openaire +2 more sources
Observability of Higgs produced with top quarks and decaying to bottom quarks
Journal of Physics G: Nuclear and Particle Physics, 2007 The decay, H → bb, is dominant for a Standard Model Higgs boson in the mass range just above the exclusion limit of 114.4 GeV/c 2 reported by the LEP experiments. Unfortunately, an overwhelming abundance of b¯ b events arising from more mundane sources, together with the lack of precision inherent in the reconstruction of the Higgs mass, renders this ...
D. BENEDETTI +9 more
openaire +3 more sources
Mass relation between top and bottom quarks [PDF]
Physics Letters B, 1994 To appear in Phys. Lett.
Xue, She-Sheng, Preparata, Giuliano
openaire +2 more sources