Results 31 to 40 of about 1,124 (167)
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
Quark-hadron duality at work: lifetimes of bottom baryons
Journal of High Energy Physics, 2023 In the 1990s, very low experimental values for the lifetime ratio τ(Λ b )/τ(B d ) triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for ...
James Gratrex +5 more
doaj +1 more source
Addendum to “Charm and bottom quark masses: An update” [PDF]
Physical Review D, 2017 We update the experimental moments for the charm quark as computed in arXiv:hep-ph/0702103. and used in arXiv:0907.2110 and arXiv:1010.6157 for the determination of the charm-quark mass. The new value for the MSbar charm-quark mass reads mc(3GeV)=0.993+/-0.008 GeV.
Chetyrkin, Konstantin G. +6 more
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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
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Disintegration of beauty: a precision study
Journal of High Energy Physics, 2023 We update the Standard Model (SM) predictions for B-meson lifetimes within the heavy quark expansion (HQE). Including for the first time the contribution of the Darwin operator, SU(3) F breaking corrections to the matrix element of dimension-six four ...
Alexander Lenz +2 more
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The mass spectrum and wave functions of the B c system
Journal of High Energy Physics, 2022 The spectrum and relativistic wave functions of B c system are investigated via solving the complete Salpeter equation. Emphases are put on the study of the partial waves of each J P state.
Guo-Li Wang +3 more
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Higgs-boson production induced by bottom quarks [PDF]
Physical Review D, 2004 Bottom quark-induced processes are responsible for a large fraction of the LHC discovery potential, in particular for supersymmetric Higgs bosons. Recently, the discrepancy between exclusive and inclusive Higgs boson production rates has been linked to the choice of an appropriate bottom factorization scale.
Boos, Eduard, Plehn, Tilman
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Journal of High Energy Physics, 2023 In light of the current discrepancies between the recent predictions based on QCD factorisation (QCDF) and the experimental data for several non-leptonic colour-allowed two-body B-meson decays, we obtain new determinations of the non-factorisable soft ...
Maria Laura Piscopo, Aleksey V. Rusov
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The charm and bottom hyperons in a chiral quark model [PDF]
Nuclear Physics A, 1996 Numerical values in Table 3 for negative parity charm cascade state energies & misprint in Table 1 ...
Glozman, L. Ya., Riska, D. O.
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Standard Model predictions for lepton flavour universality ratios of inclusive semileptonic B decays
Journal of High Energy Physics, 2022 We present Standard Model predictions for lepton flavour universality ratios of inclusive B → X(c) ℓ ν ¯ ℓ $$ \ell {\overline{\nu}}_{\ell } $$ . For the ℓ = μ, e, these ratios are very close to unity as expected.
Muslem Rahimi, K. Keri Vos
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