Results 81 to 90 of about 261,566 (199)

Light neutral-meson production in pp collisions at $$\sqrt{\text{s}}$$ = 13 TeV

open access: yesJournal of High Energy Physics
The momentum-differential invariant cross sections of π 0 and η mesons are reported for pp collisions at $$\sqrt{s}$$ = 13 TeV at midrapidity (|y| < 0.8). The measurement is performed in a broad transverse-momentum range of 0.2 < p T < 200 GeV/c and 0.4 <
The ALICE collaboration   +1072 more
doaj   +1 more source

Preserving physically important variables in optimal event selections: a case study in Higgs physics

open access: yesJournal of High Energy Physics, 2020
Analyses of collider data, often assisted by modern Machine Learning methods, condense a number of observables into a few powerful discriminants for the separation of the targeted signal process from the contributing backgrounds.
Philipp Windischhofer   +2 more
doaj   +1 more source

Mechanism of Pion Production in $alpha$p Scattering at 1 GeV/nucleon

open access: yes, 2011
The one-pion and two-pion production in the p(alpha, alpha prime)X reaction at an energy of E{alpha} = 4.2 GeV has been studied by simultaneous registration of the scattered alpha particles and the secondary pion or proton.
A. N. Prokofiev   +29 more
core   +1 more source

Particles Production in Neutron Stars by Means of the Parametric Resonance Mechanism

open access: yes, 2008
Using a Lagrangean toy model the coupling of a negative pion superconducting field and the electromagnetic field of the star is analyzed. A numerical study of particles produced in the neutron star medium by means of the well-known parametric resonance phenomenon is performed.
openaire   +2 more sources

Possible evidence for Planck-scale resonant particle production during inflation from the CMB power spectrum

open access: yesPhysical Review D, 2015
5 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:astro-ph/0406046.
Mathews, G. J.   +3 more
openaire   +3 more sources

Preheating after multifield inflation with nonminimal couplings, II: Resonance Structure

open access: yes, 2018
This is the second in a series of papers on preheating in inflationary models comprised of multiple scalar fields coupled nonminimally to gravity. In this paper, we work in the rigid-spacetime approximation and consider field trajectories within the ...
DeCross, Matthew P.   +4 more
core   +1 more source

From chemical freezeout to critical conditions in heavy ion collisions

open access: yes, 2004
We compare the statistical thermodynamics of hadron resonance gas with recent LGT results at finite chemical potential. We argue that for $T\leq T_c$ the equation of state derived from Monte--Carlo simulations of two quark--flavor QCD at finite ...
Redlich, Krzysztof
core   +1 more source

Measurement of the e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0 cross sections from s $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

open access: yesJournal of High Energy Physics
Based on e + e − collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector at the BEPCII collider, a partial wave analysis is performed for the process e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0.
The BESIII collaboration   +628 more
doaj   +1 more source

Measurement of the Y(nS) polarizations in pp collisions at s=7 $$ \sqrt{s}=7 $$ and 8 TeV

open access: yesJournal of High Energy Physics, 2017
The polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies s=7 $$ \sqrt{s}=7 $$ and 8 TeV, is measured using data samples collected by the LHCb experiment, corresponding to integrated luminosities of 1 and
The LHCb collaboration   +805 more
doaj   +1 more source

"Buddha's Light" of Cumulative Particles [PDF]

open access: yes, 2014
We show analytically that in the cumulative particles production off nuclei multiple interactions lead to a glory-like backward focusing effect. Employing the small phase space method we arrived at a characteristic angular dependence of the production ...
Kopeliovich, Vladimir B.   +2 more
core  

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