Results 31 to 40 of about 2,602,562 (177)

Charged and neutral B ¯ u , d , s $$ {\overline{B}}_{u,d,s} $$ → γ form factors from light cone sum rules at NLO

open access: yesJournal of High Energy Physics, 2021
We present the first analytic O α s $$ \mathcal{O}\left({\alpha}_s\right) $$ -computation at twist-1,2 of the B ¯ u , d , s $$ {\overline{B}}_{u,d,s} $$ → γ form factors within the framework of sum rules on the light-cone. These form factors describe the
Tadeusz Janowski   +2 more
doaj   +1 more source

Towards B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ at the NNLO in QCD without interpolation in m c

open access: yesJournal of High Energy Physics, 2020
Strengthening constraints on new physics from the B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ branching ratio requires improving accuracy in the measurements and the Standard Model predictions.
Miko-laj Misiak   +2 more
doaj   +1 more source

Implications of LHCb measurements and future prospects [PDF]

open access: yes, 2012
During 2011 the LHCb experiment at CERN collected 1.0 fb−1 of s√=7~TeV pp collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples of heavy flavoured hadrons.
Hennessy K.   +999 more
core   +2 more sources

Heavy-light mesons from a flavour-dependent interaction

open access: yesPhysics Letters B
We introduce a new framework for the physics of heavy-light mesons, whose key element is the effective incorporation of flavour-dependent contributions into the corresponding bound-state and quark gap equations.
Fei Gao   +3 more
doaj   +1 more source

Phenomenological study of heavy hadron lifetimes

open access: yesJournal of High Energy Physics, 2018
The lifetimes of bottom and charmed hadrons are analyzed within the framework of the heavy quark expansion (HQE). Lifetime differences arise from the spectator effects such as weak W-annihilation and Pauli interference. Spectator effects originating from
Hai-Yang Cheng
doaj   +1 more source

Sizable time-reversal violating effects in bottom baryon decays

open access: yesJournal of High Energy Physics, 2022
We study time-reversal (T) asymmetries in the charmless two-body decays of antitriplet bottom baryons. We find that in B b → B n P with B b = ( Ξ b − $$ {\Xi}_b^{-} $$ , Ξ b 0 $$ {\Xi}_b^0 $$ , Λ b ) and B n (P) a octet baryon (pseudoscalar meson), the ...
Chia-Wei Liu, Chao-Qiang Geng
doaj   +1 more source

HERWIG 6: an event generator for Hadron emission reactions with interfering gluons (including supersymmetric processes) [PDF]

open access: yes, 2000
HERWIG is a general-purpose Monte Carlo event generator, which includes the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron scattering and soft hadron-hadron collisions in one package. It uses the parton-shower approach for initial- and
Odagiri K   +23 more
core   +4 more sources

Prediction of the CP asymmetry C 00 in B0→D0D0¯ $$ {B}^0\to {D}^0\overline{D^0} $$ decay

open access: yesJournal of High Energy Physics, 2017
Of all B→DD¯ $$ B\to D\overline{D} $$ decays, the B0→D0D0¯ $$ {B}^0\to {D}^0\overline{D^0} $$ decay has the smallest observed branching ratio as it takes place primarily via the suppressed W-exchange diagram.
Dibyakrupa Sahoo   +4 more
doaj   +1 more source

Probing the ∆U = 0 rule in three body charm decays

open access: yesJournal of High Energy Physics, 2021
CP violation in charm decay was observed in the decays D 0 → P ± P ∓ of a D 0 meson to two pseudoscalars. When interpreted within the SM, the results imply that the ratio of the relevant rescattering amplitudes has a magnitude and phase that are both of ...
Avital Dery   +3 more
doaj   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

open access: yesExperimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López   +12 more
wiley   +1 more source

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