Results 21 to 30 of about 3,844 (223)

Phenomenology of Large N c QCD [PDF]

open access: yesCzechoslovak Journal of Physics, 1999
34 pages, 14 eps figures, latex (revtex), uses epsf. Lectures presented at 11th Indian-Summer School of Nuclear Physics, Charles University, Prague, September, 1998; to appear in Czech J ...
openaire   +3 more sources

Tree-level splitting amplitudes for a quark into four collinear partons

open access: yesJournal of High Energy Physics, 2020
We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a quark parent in the limit where four partons become collinear to each other. This is part of the universal infrared behaviour of the QCD scattering amplitudes
Vittorio Del Duca   +4 more
doaj   +1 more source

Stability of the Next‐to‐Tribimaximal Mixings under Radiative Corrections with the Variation of the SUSY Breaking Scale in MSSM

open access: yesAdvances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023
We analyze the radiative stability of the next‐to‐tribimaximal mixings (NTBM) with the variation of the SUSY breaking scale (mS) in MSSM, for both normal ordering (NO) and inverted ordering (IO) at the fixed input value of the seesaw scale MR = 1015 GeV and two different values of tanβ.
Kh. Helensana Devi   +3 more
wiley   +1 more source

Dynamical tachyonic AdS/QCD and information entropy

open access: yesPhysics Letters B, 2018
The configurational entropy setup is employed to study dynamical tachyonic holographic AdS/QCD models. The phenomenology of light-flavour mesonic states is then corroborated by the Shannon's information.
N. Barbosa-Cendejas   +4 more
doaj   +1 more source

Standard Model prediction of the B c lifetime

open access: yesJournal of High Energy Physics, 2021
Applying an operator product expansion approach we update the Standard Model prediction of the B c lifetime from over 20 years ago. The non-perturbative velocity expansion is carried out up to third order in the relative velocity of the heavy quarks. The
Jason Aebischer, Benjamín Grinstein
doaj   +1 more source

Sex is a defining feature of neuroimaging phenotypes in major brain disorders

open access: yesHuman Brain Mapping, Volume 43, Issue 1, Page 500-542, January 2022., 2022
Here, we review the human neuroimaging literature examining sex effects on adult brain structure using structural and diffusion MRI. We discuss normative sex differences based on population‐based studies as well as sex differences in 14 major brain diseases.
Lauren E. Salminen   +5 more
wiley   +1 more source

Colour and logarithmic accuracy in final-state parton showers

open access: yesJournal of High Energy Physics, 2021
Standard dipole parton showers are known to yield incorrect subleading-colour contributions to the leading (double) logarithmic terms for a variety of observables. In this work, concentrating on final-state showers, we present two simple, computationally
Keith Hamilton   +4 more
doaj   +1 more source

Generalising Holographic Superconductors

open access: yesAdvances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
In this paper we propose a generalised holographic framework to describe superconductors. We first unify the description of s‐, p‐, and d‐wave superconductors in a way that can be easily promoted to higher spin. Using a semianalytical procedure to compute the superconductor properties, we are able to further generalise the geometric description of the ...
Andrea Donini   +4 more
wiley   +1 more source

Global analysis of the Sivers functions at NLO+NNLL in QCD

open access: yesJournal of High Energy Physics, 2021
We perform global fit to the quark Sivers function within the transverse momentum dependent (TMD) factorization formalism in QCD. We simultaneously fit Sivers asymmetry data from Semi-Inclusive Deep Inelastic Scattering (SIDIS) at COMPASS, HERMES, and ...
Miguel G. Echevarria   +2 more
doaj   +1 more source

PHENOMENOLOGY FROM LATTICE QCD [PDF]

open access: yesLepton-Photon 01, 2002
I review two subject in which lattice simulations are making, or can make in the future, a significant contribution to particle physics phenomenology. The first subject is the evaluation of quantities which enter into the determination of the vertex A of the unitarity triangle from experimental measurements of decay rates and mixing amplitudes.
openaire   +4 more sources

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