Results 41 to 50 of about 261,566 (199)

Weak Production of Strange Particles and $\eta$ Mesons off the Nucleon

open access: yes, 2015
The strange particle production induced by (anti)neutrino off nucleon has been studied for $|\Delta S|=0$ and $|\Delta S|=1$ channels. The reactions those we have considered are for the production of single kaon/antikaon, eta and associated particle ...
Alam, M. Rafi   +4 more
core   +1 more source

Entropy production, energy loss and currents in adiabatically rocked thermal ratchets [PDF]

open access: yes, 2003
We study the nature of currents, input energy and entropy production in different types of adiabatically rocked ratchets using the method of stochastic energetics. The currents exhibit a peak as a function of noise strength.
Jayannavar, A. M., Krishnan, Raishma
core   +2 more sources

Constraints on resonant particle production during inflation from the matter and CMB power spectra

open access: yesPhysical Review D, 2004
We analyze the limits on resonant particle production during inflation based upon the power spectrum of fluctuations in matter and the cosmic microwave background. We show that such a model is consistent with features observed in the matter power spectrum deduced from galaxy surveys and damped Lyman-alpha systems at high redshift.
Mathews, G. J.   +4 more
openaire   +2 more sources

Search for heavy resonances in final states with four leptons and missing transverse momentum or jets in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
A search for a new heavy boson produced via gluon-fusion in the four-lepton channel with missing transverse momentum or jets is performed. The search uses proton-proton collision data equivalent to an integrated luminosity of 139 fb −1 at a centre-of ...
The ATLAS collaboration   +2878 more
doaj   +1 more source

Observation of e + e − → ηψ(2S) at center-of-mass energies from 4.236 to 4.600 GeV

open access: yesJournal of High Energy Physics, 2021
Using a total of 5.25 fb −1 of e + e − collision data with center-of-mass energies from 4.236 to 4.600 GeV, we report the first observation of the process e + e − → ηψ(2S) with a statistical significance of 4.9 standard deviations.
The BESIII collaboration   +517 more
doaj   +1 more source

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low mass narrow resonances decaying into hadrons using 140 fb −1 of proton ...
The ATLAS collaboration   +2928 more
doaj   +1 more source

New narrow N*(1685) resonance: review of observations

open access: yes, 2014
The recent Review of Particle Physics [1] includes a new narrow N*(1685) resonance. Its properties, the narrow width and the strong photoexcitation on the neutron, are unusual.
Kuznetsov, Viacheslav
core   +2 more sources

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

The production of high-momentum particles and resonances in pp collisions at the CERN intersecting storage rings [PDF]

open access: yesNuclear Physics B, 1983
Data are reported on the momentum distributions of Λ, Λ (1520), φ (1020), Λ and p, inclusively produced between 1° and 2° with respect to one of the primary proton beams at the CERN Intersecting Storage Rings. In addition, the decay angular distribution of the Λ(1520), the ratio of the cross sections for the production of Σ− (1385) and Σ+ (1385) and ...
Bobbink, G.J.   +13 more
openaire   +1 more source

Investigating strangeness enhancement with multiplicity in pp collisions using angular correlations

open access: yesJournal of High Energy Physics
A study of strange hadron production associated with hard scattering processes and with the underlying event is conducted to investigate the origin of the enhanced production of strange hadrons in small collision systems characterised by large charged ...
The ALICE collaboration   +1076 more
doaj   +1 more source

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