Results 91 to 100 of about 12,651 (236)
, 1994 45 pages and 36 figures (not included, available upon request), TeX, UB-ECM-PF-94 ...
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European Physical Journal C: Particles and FieldsWe revisit $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decay processes using the modified perturbative QCD approach, which is developed based on the perturbative QCD approach with a few improvements.
Ru-Xuan Wang, Mao-Zhi Yang
doaj +1 more source
Studies of Parity Violation in Atoms
Annalen der Physik, Volume 537, Issue 2, February 2025.This article provides an overview of atomic parity violation (APV), emphasizing its role in testing the Standard Model and probing new physics. The review discusses manifestations of APV, including nuclear‐spin‐independent and dependent effects, and explores isotopic comparison as a method for precision measurements.
Stefanos Nanos +2 more
wiley +1 more source
A new determination of higher-order QCD corrections to hadronic τ decays
Physics Letters BWe employ Levin-type sequence transformations to accelerate the convergence of the perturbative fixed-order expansion of the QCD correction δ(0) in terms of the strong coupling αs.
Gauhar Abbas, Vartika Singh
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Physics Letters B, 2018 The Crewther–Broadhurst–Kataev (CBK) relation connects the Bjorken function for deep-inelastic sum rules (or the Gross–Llewellyn Smith function) with the Adler function for electron–positron annihilation in QCD; it has been checked to hold up to four ...
Gregory Gabadadze, Giorgi Tukhashvili
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Heavy Quarkonium States With Baryonic Chemical Potential
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.In this work, we have studied the dissociation behavior of 1S and 2S states of quarkonium using quasiparticle approach where the Debye mass depends on baryonic chemical potential. The binding energies of the quarkonium states has been obtained by using quasiparticle Debye mass which further depends on temperature and baryonic chemical potential (μb ...
Siddhartha Solanki +3 more
wiley +1 more source
QCD perturbation theory at low energies
Physical Review Letters, 1992 We apply the optimization procedure based on the Principle of Minimal Sensitivity to the third-order calculation of $\R$. The effective couplant remains finite, freezing to a value $α_s/π= 0.26$ at low energies. Using Poggio-Quinn-Weinberg smearing we find good agreement between theory and experiment right down to zero energy.
Mattingly, A. C., Stevenson, P. M.
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Journal of High Energy Physics, 2020 We give the hyperasymptotic expansion of the energy of a static quark-antiquark pair with a precision that includes the effects of the subleading renormalon.
Cesar Ayala +2 more
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Holographic Duals of Symmetry Broken Phases
Fortschritte der Physik, Volume 72, Issue 12, December 2024.Abstract A novel interpretation of Symmetry Topological Field Theories (SymTFTs) as theories of gravity is explored by proposing a holographic duality where the bulk SymTFT (with the gauging of a suitable Lagrangian algebra) is dual to the universal effective field theory (EFT) that describes spontaneous symmetry breaking on the boundary.
Andrea Antinucci +2 more
wiley +1 more source
Meson distribution amplitudes: applications to weak radiative B decays and в transition form factors [PDF]
, 2007 This thesis examines the applications and determinations of meson light-cone distribution amplitudes, which enter the theoretical description of exclusive processes at large moment urn transfer.
Jones, Gareth W.
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