Results 31 to 40 of about 1,070,439 (192)
Isolating final state effects in high pT π0 production using direct photons in small system collisions with PHENIX [PDF]
EPJ Web of ConferencesPHENIX observed a 20% suppression in the production of high pT neutral pions in the most central (0-5%) d+Au collisions at 200 GeV. Through the simultaneous measurement of high pT direct photons (γdir) and π0 production for event samples selected by ...
Firak Daniel
doaj +1 more source
Quarkonium Suppression from Coherent Energy Loss in Fixed-Target Experiments Using LHC Beams
Advances in High Energy Physics, 2015 Quarkonium production in proton-nucleus collisions is a powerful tool to disentangle cold nuclear matter effects. A model based on coherent energy loss is able to explain the available quarkonium suppression data in a broad range of rapidities, from ...
François Arleo, Stéphane Peigné
doaj +1 more source
Potential energy surface of Li–O2 system for cold collisions [PDF]
, 2023 This paper explores the interactions between Li and oxygen in their van der Waals state for the study of cold collisions between these two species. The quartet surface was calculated using a basis set converged spin-restricted CCSD(T) method, while for ...
Katarzyna , Madajczyk, Piotr, Zuchowski
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EPJ Web of Conferences, 2018 Various Cold Nuclear Matter (CNM) effects, such as nuclear shadowing or partonic energy loss, can modify the production of J/Ψ in heavy-ion collisions with respect to what is measured in elementary colliding systems.
Trombetta Giuseppe
doaj +1 more source
Optical Collisions of Cold, Metastable Helium Atoms [PDF]
Physical Review Letters, 1998 We have studied the optical collisions of cold, metastable helium atoms in a magneto-optical trap. We have detected the rate of Penning and associative ionization of two metastable helium atoms at a temperature of 1 mK with and without nearly resonant light. We find that the associative ionization rate is increased with more than a factor 20 due to the
Mastwijk, H.C. +3 more
openaire +4 more sources
Realisation of a cold mixture of rubidium and caesium [PDF]
, 2008 This thesis describes a new apparatus designed to study cold, ultracold, and quantum degenerate mixtures of rubidium and caesium atoms. The Rb- Cs mixture is prepared using a double magneto-optical trap (MOT) system in which a two-species pyramid MOT ...
Harris, Magaret L, Harris, Margaret L.
core
Interactions and collisions of cold molecules: lithium + lithium dimer [PDF]
, 2004 There is at present great interest in the properties of ultracold molecules. Molecules are created in traps in excited rovibrational states and any vibrational relaxation results in the trap loss.
Cvitaš, Marko Tomislav
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Collision cross sections for the thermalization of cold gases [PDF]
Physical Review A, 2014 The collision cross section that controls thermalization of gas mixtures is the transport cross section $σ_η^{(1)}$ and not the elastic cross section $σ_{\rm el}$. The two are the same for pure s-wave scattering but not when higher partial waves contribute.
Frye, M.D., Hutson, J.M.
openaire +3 more sources
Energy dependence of multiplicity fluctuations in heavy ion collisions [PDF]
, 2007 The energy dependence of multiplicity fluctuations was studied for the most central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV by the NA49 experiment at the CERN SPS. The multiplicity distribution for negatively and positively charged hadrons is
Vassiliou, Maria +99 more
core
On event-by-event fluctuations in nuclear collisions [PDF]
, 1997 We demonstrate that a new type of analysis in heavy-ion collisions, based on an event-by-event analysis of the transverse momentum distribution, allows us to obtain information on secondary interactions and collective behaviour that is not available from
Leonidov, Andrei +5 more
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