Results 21 to 30 of about 1,324,434 (314)

Rho-meson resonance broadening in QCD at finite temperature [PDF]

open access: yesPhysical Review D, 2012
Thermal Finite Energy QCD sum rules for the vector current correlator are used to study quark-gluon deconfinement. Assuming $ $-meson saturation of the correlator in the hadronic sector, and the Operator Product Expansion in QCD, we obtain the temperature behavior of the resonance parameters (coupling, mass, and width), and of the leading vacuum ...
Ayala, Alejandro   +3 more
openaire   +7 more sources

The effect of composite resonances on Higgs decay into two photons [PDF]

open access: yesThe European Physical Journal C, 2014
In scenarios of strongly coupled electroweak symmetry breaking, heavy composite particles of different spin and parity may arise and cause observable effects on signals that appear at loop levels. The recently observed process of Higgs to $ $ at the LHC is one of such signals. We study the new constraints that are imposed on composite models from $H\
Carcamo Hernandez, A. E.   +2 more
openaire   +7 more sources

Amplitude analysis of the D s + $$ {D}_s^{+} $$ → π − π + π + decay

open access: yesJournal of High Energy Physics, 2023
A Dalitz plot analysis of the D s + $$ {D}_s^{+} $$ → π − π + π + decay is presented. The analysis is based on proton-proton collision data recorded by the LHCb experiment at a centre-of-mass energy of 8 TeV and corresponding to an integrated luminosity ...
The LHCb collaboration   +1071 more
doaj   +1 more source

Probing the Phase Boundary between Hadronic Matter and the Quark-Gluon-Plasma in Relativistic Heavy Ion Collisions [PDF]

open access: yes, 1996
We discuss recent data on particle production with emphasis on the degree of thermal and chemical equilibration achieved. The data are interpreted in terms of a resonance gas model.
Braun-Munzinger, P., Stachel, J.
core   +3 more sources

Amplitude analysis of the D + → π − π + π + decay and measurement of the π − π + S-wave amplitude

open access: yesJournal of High Energy Physics, 2023
An amplitude analysis of the D + → π − π + π + decay is performed with a sample corresponding to 1.5 fb −1 of integrated luminosity of pp collisions at a centre-of-mass energy s $$ \sqrt{s} $$ = 8 TeV collected by the LHCb detector in 2012.
The LHCb collaboration   +1044 more
doaj   +1 more source

Fermionic statistics suppresses Fano resonances [PDF]

open access: yes, 2014
Fano resonances and bound states with energy in the continuum are ubiquitous phenomena in different areas of physics. Observations, however, have been limited so far to single-particle processes.
Ciamei, Alessio   +8 more
core   +3 more sources

Particle number scaling for diffusion-induced dissipation in graphene and carbon nanotube nanomechanical resonators [PDF]

open access: yesPhys. Rev. B 93, 125414 (2016), 2015
When a contaminant diffuses on the surface of a nanomechanical resonator, the motions of the two become correlated. Despite being a high-order effect in the resonator-particle coupling, such correlations affect the system dynamics by inducing dissipation of the resonator energy.
arxiv   +1 more source

Observation of a resonance in the KSp decay channel at a mass of 1765 MeV/c2 [PDF]

open access: yesThe European Physical Journal C, 2007
We report on the observation of a K$_s$p resonance signal at a mass of 1765$\pm$5 MeV/c$^2$, with intrinsic width $ = 108\pm 22$ MeV/c$^2$, produced inclusively in $ ^-$-nucleus interactions at 340 GeV/c in the hyperon beam experiment WA89 at CERN.
O. Thilmann   +77 more
openaire   +7 more sources

The effect of dissipation on quantum transmission resonance [PDF]

open access: yes, 2007
Quantum transmissions of a free particle passing through a rectangular potential barrier with dissipation are studied using a path decomposition technique.
Auerbach   +29 more
core   +3 more sources

Neutrinos from Cosmic Accelerators including Magnetic Field and Flavor Effects

open access: yesAdvances in High Energy Physics, 2012
We review the particle physics ingredients affecting the normalization, shape, and flavor composition of astrophysical neutrinos fluxes, such as different production modes, magnetic field effects on the secondaries (muons, pions, and kaons), and flavor ...
Walter Winter
doaj   +1 more source

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