Results 41 to 50 of about 62,043 (279)

Light-cone distribution amplitudes of pseudoscalar mesons from lattice QCD [PDF]

open access: yesJournal of High Energy Physics, 2019
We present the first lattice determination of the two lowest Gegenbauer moments of the leading-twist pion and kaon light-cone distribution amplitudes with full control of all errors: a2π=0.101−24+24\documentclass[12pt]{minimal} \usepackage{amsmath ...
G. Bali   +9 more
semanticscholar   +1 more source

The glueball content of ηc

open access: yesPhysics Letters B, 2022
We carry out the first lattice QCD derivation of the mixing energy and the mixing angle of the pseudoscalar charmonium and glueball on two gauge ensembles with Nf=2 degenerate dynamical charm quarks. The mixing energy is determined to be 49(6) MeV on the
Renqiang Zhang   +5 more
doaj   +1 more source

Pseudoscalar-photon Interactions, Axions, Non-Minimal Extensions, and Their Empirical Constraints from Observations [PDF]

open access: yes, 2011
Pseudoscalar-photon interactions were proposed in the study of the relations among equivalence principles. The interaction of pseudoscalar axion with gluons was proposed as a way to solve the strong CP problem.
Balakin, A. B.   +2 more
core   +2 more sources

Towards a precise determination of the scattering amplitudes of the charmed and light-flavor pseudoscalar mesons [PDF]

open access: yesThe European Physical Journal C, 2018
We study the scattering of the light-flavor pseudoscalar mesons ($$\pi , K, \eta $$π,K,η) off the ground-state charmed mesons ($$D,D_s$$D,Ds) within chiral effective field theory.
Zhi-Hui Guo   +6 more
semanticscholar   +1 more source

Probing the light pseudoscalar window [PDF]

open access: yesPhysical Review D, 2003
22 pages, 4 ...
Anderson, David L.   +2 more
openaire   +2 more sources

Spin-axion coupling [PDF]

open access: yes, 2015
We establish a new covariant phenomenological model, which describes an influence of pseudoscalar (axion) field on spins of test massive particles. The model includes general relativistic equations of particle motion and spin evolution in background ...
Balakin, Alexander B.   +1 more
core   +2 more sources

Warm pseudoscalar inflation [PDF]

open access: yesPhysical Review D, 2019
In this note, we will introduce an action for warm inflation model with direct coupling between the pseudoscalar field and mass-less $SU(2)$ gauge fields.
V. Kamali
semanticscholar   +1 more source

PSEUDOSCALAR MESON ELECTROPRODUCTION AND TRANSVERSITY [PDF]

open access: yesExclusive Reactions at High Momentum Transfer IV, 2011
Exclusive meson leptoproduction from nucleons in the deeply virtual exchanged boson limit can be described by generalized parton distributions (GPDs). Including spin dependence in the description requires 8 independent quark-parton and gluon-parton functions.
Goldstein, Gary R., Liuti, Simonetta
openaire   +2 more sources

The Schwinger Nonet Mass and Sakurai Mass-Mixing Angle Formulae Reexamined [PDF]

open access: yes, 1998
We study the origins of the inaccuracies of Schwinger's nonet mass, and the Sakurai mass-mixing angle, formulae for the pseudoscalar meson nonet, and suggest new versions of them, modified by the inclusion of the pseudoscalar decay constants.
Dashen   +11 more
core   +3 more sources

Search for a light pseudoscalar Higgs boson in the boosted μμττ final state in proton-proton collisions at √s = 13 TeV

open access: yes, 2020
A search for a light pseudoscalar Higgs boson (a) decaying from the 125 GeV (or a heavier) scalar Higgs boson (H) is performed using the 2016 LHC proton-proton collision data at $$ \sqrt{s} $$ = 13 TeV, corresponding to an integrated luminosity of 35 ...
A. Sirunyan   +499 more
semanticscholar   +1 more source

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