Results 31 to 40 of about 259,889 (283)

Production of K S 0 $$ {\textrm{K}}_{\textrm{S}}^0 $$ , Λ ( Λ ¯ $$ \overline{\Lambda} $$ ), Ξ ± , and Ω ± in jets and in the underlying event in pp and p–Pb collisions

open access: yesJournal of High Energy Physics, 2023
The production of strange hadrons ( K S 0 $$ {\textrm{K}}_{\textrm{S}}^0 $$ , Λ, Ξ ± , and Ω ± ), baryon-to-meson ratios (Λ/ K S 0 $$ {\textrm{K}}_{\textrm{S}}^0 $$ , Ξ/ K S 0 $$ {\textrm{K}}_{\textrm{S}}^0 $$ , and Ω/ K S 0 $$ {\textrm{K}}_{\textrm{S ...
The ALICE collaboration   +1032 more
doaj   +1 more source

Measurement of the energy dependence of the e + e − → B B ¯ $$ B\overline{B} $$ , B B ¯ ∗ $$ B{\overline{B}}^{\ast } $$ and B ∗ B ¯ ∗ $$ {B}^{\ast }{\overline{B}}^{\ast } $$ exclusive cross sections

open access: yesJournal of High Energy Physics, 2021
We report the first measurement of the exclusive cross sections e + e − → B B ¯ $$ B\overline{B} $$ , e + e − → B B ¯ ∗ $$ B{\overline{B}}^{\ast } $$ , and e + e − → B ∗ B ¯ ∗ $$ {B}^{\ast }{\overline{B}}^{\ast } $$ in the energy range from 10.63 GeV to ...
The BELLE collaboration   +190 more
doaj   +1 more source

Calculation of Particle Production by Nambu Goldstone Bosons with Application to Inflation Reheating and Baryogenesis

open access: yes, 1994
A semiclassical calculation of particle production by a scalar field in a potential is performed. We focus on the particular case of production of fermions by a Nambu-Goldstone boson $\theta$.
A. Albrecht   +19 more
core   +1 more source

Amplitude analysis and branching fraction measurement of the decay D s + $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → K+ π + π − π 0

open access: yesJournal of High Energy Physics, 2022
The singly Cabibbo-suppressed decay D s + $$ {D}_s^{+} $$ → K + π + π − π 0 is observed by using a data set corresponding to an integrated luminosity of 6.32 fb −1 recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV.
The BESIII collaboration   +568 more
doaj   +1 more source

Parametric Resonance in a Vibrating Cavity

open access: yes, 2003
We present the study of parametric resonance in a one-dimensional cavity based on the analysis of classical optical paths. The recursive formulas for field energy are given. We separate the mechanism of particle production and the resonance amplification
Arnold   +17 more
core   +1 more source

Monte-Carlo simulations of photohadronic processes in astrophysics [PDF]

open access: yes, 1999
A new Monte Carlo program for photohadronic interactions of relativistic nucleons with an ambient photon radiation field is presented. The event generator is designed to fulfil typical astrophysical requirements, but can also be used for radiation and ...
Engel, Ralph   +4 more
core   +3 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

Effect of the Generalized Uncertainty Principle on Post-Inflation Preheating [PDF]

open access: yes, 2011
We examine effects of the Generalized Uncertainty Principle, predicted by various theories of quantum gravity to replace the Heisenberg's uncertainty principle near the Planck scale, on post inflation preheating in cosmology, and show that it can predict
A. Kempf   +11 more
core   +2 more sources

Tachyonic and parametric resonances for massive particle production in an intense scalar plane wave background

open access: yesPhysical Review D
We investigate the stability of an intensive plane wave of a massless or light scalar field ϕ in a trilinear scalar model gϕχ2 due to the resonant production of massive χ particles in a perturbatively forbidden regime. We apply two methods. First, we solve the Heisenberg equation for the quantum amplitudes of the field χ in an external plane wave ...
Ekaterina Dmitrieva, Petr Satunin
openaire   +2 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

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