Results 61 to 70 of about 386,273 (265)
QCD preheating: New frontier of baryogenesis [PDF]
Phys.Rev.D.108.023512, 2023, 2022 We find that QCD can create the cosmological matter abundance via out-of-equilibrium processes during the QCD phase transition, that is what we call the QCD preheating, where the dynamic transition of the QCD vacuum characterized by the quark condensate takes place instantaneously. This mechanism works when the Universe undergoes subsequent supercooled
arxiv +1 more source
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We investigate the exclusive semileptonic and rare D⟶π(K) decays within the standard model together with the light‐front quark model (LFQM) constrained by the variational principle for the QCD‐motivated effective Hamiltonian. The form factors are obtained in the q+ = 0 frame and then analytically continue to the physical timelike region.
Ho-Meoyng Choi, Qin Chang
wiley +1 more source
Phenomenology of Λb → Λcτν¯τ using lattice QCD calculations [PDF]
, 2017 A bstractIn a recent paper we studied the effect of new-physics operators with different Lorentz structures on the semileptonic Λb→Λcτν¯τ$$ {\Lambda}_b\to {\Lambda}_c\tau {\overline{\nu}}_{\tau } $$ decay. This decay is of interest in light of the R(D(*))
A. Datta +3 more
semanticscholar +2 more sources
PHENOMENOLOGY USING LATTICE QCD [PDF]
PASCOS 2004, 2005 Plenary talk at PASCOS 2004, August 16-22, Northeastern University ...
openaire +4 more sources
QCD aspects of exclusive B meson decays [PDF]
Prog.Part.Nucl.Phys.51:85-171,2003, 2003 I review recent progress on understanding QCD dynamics involved in exclusive $B$ meson decays. Different frameworks, including light-cone sum rules, QCD factorization, perturbative QCD, soft-collinear effective theory, light-front QCD, are discussed. Results from lattice QCD are quoted for comparison.
arxiv +1 more source
Isotensor Axial Polarizability and Lattice QCD Input for Nuclear Double-β Decay Phenomenology. [PDF]
Physical Review Letters, 2017 The potential importance of short-distance nuclear effects in double-β decay is assessed using a lattice QCD calculation of the nn→pp transition and effective field theory methods.
P. Shanahan +8 more
semanticscholar +1 more source
B →P and B →V form factors from B-meson light-cone sum rules beyond leading twist
Journal of High Energy Physics, 2019 We 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. van Dyk
doaj +1 more source
Analytic integration of soft and collinear radiation in factorised QCD cross sections at NNLO
Journal of High Energy Physics, 2021 Within the framework of local analytic sector subtraction, we present the full analytic integration of double-real and real-virtual local infrared counterterms that enter NNLO QCD computations with any number of massless final-state partons. We show that
Lorenzo Magnea +4 more
doaj +1 more source
SMEFT atlas of ∆F = 2 transitions
Journal of High Energy Physics, 2020 We present a model-independent anatomy of the ∆F = 2 transitions K 0 − K ¯ 0 $$ {\overline{K}}^0 $$ , B s,d − B ¯ s , d $$ {\overline{B}}_{s,d} $$ and D 0 − D ¯ 0 $$ {\overline{D}}^0 $$ in the context of the Standard Model Effective Field Theory (SMEFT).
Jason Aebischer +3 more
doaj +1 more source
CP violation in η muonic decays
Journal of High Energy Physics, 2019 In this study, we investigate the imprints of CP violation in certain η muonic decays that could arise within the Standard Model effective field theory.
Pablo Sanchez-Puertas
doaj +1 more source