Results 61 to 70 of about 62,043 (279)
Primordial gravitational waves for universality classes of pseudoscalar inflation [PDF]
, 2016 Current bounds from the polarization of the CMB predict the scale-invariant gravitational wave (GW) background of inflation to be out of reach for upcoming GW interferometers. This prospect dramatically changes if the inflaton is a pseudoscalar, in which
V. Domcke, M. Pieroni, P. Bin'etruy
semanticscholar +1 more source
Witten-Veneziano mechanism and pseudoscalar glueball-meson mixing in holographic QCD [PDF]
Physical Review D, 2019 We revisit the $U(1)_A$ anomaly in the holographic model of low-energy QCD by Witten, Sakai, and Sugimoto, presenting a new and direct derivation of the Witten-Veneziano mechanism for generating the mass of the $\eta'$ through an anomalous mixing of the ...
J. Leutgeb, A. Rebhan
semanticscholar +1 more source
Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ
Journal of High Energy Physics, 2021 A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y.
Wen Qin, Ling-Yun Dai, Jorge Portolés
doaj +1 more source
The light pseudoscalar Higgs boson in NMSSM [PDF]
, 2006 We study the associated production of a very light pseudoscalar Higgs boson with a pair of charginos. The novel signature involves a pair of charged leptons from chargino decays and a pair of photons from the pseudoscalar Higgs boson decay, plus large ...
Arhrib, Abdesslam +3 more
core +3 more sources
Physics Letters B, 2016 A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a bb‾ pair, in the context of two-Higgs-doublet models. The results are based on pp collision data at a centre-of-mass energy of 8 TeV
V. Khachatryan +2 more
doaj +1 more source
Doped holographic fermionic system
European Physical Journal C: Particles and Fields, 2020 We construct a two-current model. It includes two gauge fields, which introduce the doping effect, and a neutral scalar field. And then we numerically construct an AdS black brane geometry with scalar hair.
Wenjun Huang +4 more
doaj +1 more source
Pseudoscalar meson radial excitations [PDF]
Physical Review C, 2004 5 pages, 3 ...
Hoell, A., Krassnigg, A., Roberts, C. D.
openaire +2 more sources
Mass dependence of pseudoscalar meson elastic form factors [PDF]
Physical Review D, 2018 A continuum approach to quark-antiquark bound-states is used to determine the electromagnetic form factors of pion-like mesons with masses $m_{0^-}/{\rm GeV}=0.14$, $0.47$, $0.69$, $0.83$ on a spacelike domain that extends to $Q^2 \lesssim 10\,$GeV$^2 ...
Muyang Chen +3 more
semanticscholar +1 more source
The Isgur-Wise function: A lattice determination from pseudoscalar → pseudoscalar form factors [PDF]
Nuclear Physics B - Proceedings Supplements, 1994 Form factors for pseudoscalar --> pseudoscalar decays of heavy-light mesons are found in quenched lattice QCD with heavy-quark masses in the range of approximately 1-2 GeV. The Isgur-Wise function, $ ( )$, is extracted from these form factors. Results are in good agreement with $ ( )$ derived from CLEO measurements for B --> D*.
UKQCD Collaboration, Simone, James N.
openaire +2 more sources
The a0(980) in the single Cabibbo-suppressed process Λc → π0ηp
Physics Letters B, 2023 In this work, we have investigated the Cabibbo-suppressed process Λc→π0ηp, by taking into account the intermediate scalar state a0(980), which could be dynamically generated from the S-wave pseudoscalar-pseudoscalar interaction within the chiral unitary ...
Xue-Chao Feng +4 more
doaj +1 more source