One Dimensional Pion Kaon And Proton Femtoscopy In Pb Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant
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One Dimensional Pion Kaon And Proton Femtoscopy In Pb Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant
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Author :
language : en
Publisher:
Release Date : 2015
One Dimensional Pion Kaon And Proton Femtoscopy In Pb Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of [pi]± [pi]±, K± K±, K$0\atop{S}$K$0\atop{S}$, pp, and $\overline{p}$ $\overline{p}$ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. Lastly, the kaon and proton source sizes can be reasonably described by approximate mT scaling.
Two Pion Femtoscopy In Math Mi P Mi Math Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mrow Mi N Mi Mi N Mi Mrow Msub Msqrt Mo
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Author :
language : en
Publisher:
Release Date : 2015
Two Pion Femtoscopy In Math Mi P Mi Math Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mrow Mi N Mi Mi N Mi Mrow Msub Msqrt Mo written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Here, we report the results of the femtoscopic analysis of pairs of identical pions measured in p-Pb collisions at √sNN = 5.02 TeV. Femtoscopic radii are determined as a function of event multiplicity and pair momentum in three spatial dimensions. As in the pp collision system, the analysis is complicated by the presence of sizable background correlation structures in addition to the femtoscopic signal. The radii increase with event multiplicity and decrease with pair transverse momentum. When taken at comparable multiplicity, the radii measured in p-Pb collisions, at high multiplicity and low pair transverse momentum, are 10%-20% higher than those observed in pp collisions but below those observed in A-A collisions. The results are compared to hydrodynamic predictions at large event multiplicity as well as discussed in the context of calculations based on gluon saturation.
Centrality Dependence Of The Nuclear Modification Factor Of Charged Pions Kaons And Protons In Pb Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant
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Author :
language : en
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Release Date : 2016
Centrality Dependence Of The Nuclear Modification Factor Of Charged Pions Kaons And Protons In Pb Pb Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Here, transverse momentum (pT) spectra of pions, kaons, and protons up to pT = 20GeV/c have been measured in Pb-Pb collisions at √sNN = 2.76TeV using the ALICE detector for six different centrality classes covering 0%-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT ≈ 3GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT > 10GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT
Systematic Study Of Charged Pion And Kaon Femtoscopy In Au Au Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant
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Author :
language : en
Publisher:
Release Date : 2015
Systematic Study Of Charged Pion And Kaon Femtoscopy In Au Au Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
In this paper, we present a systematic study of charged pion and kaon interferometry in Au+Au collisions at √sNN=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Finally, hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
Neutral Kaon Femtoscopy In Pb Pb Collisions At Snn
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Author : Matthew Steinpreis
language : en
Publisher:
Release Date : 2014
Neutral Kaon Femtoscopy In Pb Pb Collisions At Snn written by Matthew Steinpreis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
This thesis will present K0SK0S femtoscopic correlations in Pb-Pb collisions at √sNN = 2.76 TeV at the LHC with ALICE. This analysis will be the first centrality- and KT-differential study of K0SK0S correlations in heavy-ion collisions, presenting femtoscopic results for three centrality bins and four KT bins. This thesis will present results for both one-dimensional and three-dimensional femtoscopic analyses, the latter being the first of its kind for the K0SK0S system.
Femtoscopic Correlations Of Identical Charged Pions And Kaons In Pp Collisions At S
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Author : Shreyasi Acharya
language : en
Publisher:
Release Date : 2023
Femtoscopic Correlations Of Identical Charged Pions And Kaons In Pp Collisions At S written by Shreyasi Acharya and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Collective behavior has been observed in high-energy heavy-ion collisions for several decades. Collectivity is driven by the high particle multiplicities that are produced in these collisions. At the Large Hadron Collider (LHC), features of collectivity have also been seen in high-multiplicity proton-proton collisions that can attain particle multiplicities comparable to peripheral Pb-Pb collisions. One of the possible signatures of collective behavior is the decrease of femtoscopic radii extracted from pion and kaon pairs emitted from high-multiplicity collisions with increasing pair transverse momentum. This decrease can be described in terms of an approximate transverse mass scaling. In the present work, femtoscopic analyses are carried out by the ALICE collaboration on charged pion and kaon pairs produced in pp collisions at s√=13 TeV from the LHC to study possible collectivity in pp collisions. The event-shape analysis method based on transverse sphericity is used to select for spherical versus jet-like events, and the effects of this selection on the femtoscopic radii for both charged pion and kaon pairs are studied. This is the first time this selection method has been applied to charged kaon pairs. An approximate transverse-mass scaling of the radii is found in all multiplicity ranges studied when the difference in the Lorentz boost for pions and kaons is taken into account. This observation does not support the hypothesis of collective expansion of hot and dense matter that should only occur in high-multiplicity events. A possible alternate explanation of the present results is based on a scenario of common emission conditions for pions and kaons in pp collisions for the multiplicity ranges studied.
Measurement Of Pion Kaon And Proton Production In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Measurement Of Pion Kaon And Proton Production In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Kaon And Pion Production In Centrality Selected Minimum Bias Pb Pb Collisions At 40 And 158a Gev
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Author : Peter Dinkelaker
language : en
Publisher:
Release Date : 2009
Kaon And Pion Production In Centrality Selected Minimum Bias Pb Pb Collisions At 40 And 158a Gev written by Peter Dinkelaker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Multiplicity Dependence Of Charged Pion Kaon And Anti Proton Production At Large Transverse Momentum In P Pb Collisions At Snn
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Author : Jaroslav Adam
language : en
Publisher:
Release Date : 2016
Multiplicity Dependence Of Charged Pion Kaon And Anti Proton Production At Large Transverse Momentum In P Pb Collisions At Snn written by Jaroslav Adam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The production of charged pions, kaons and (anti)protons has been measured at mid-rapidity (-0.5y
Xi And Xi Bar Production In 158 Gev Nucleon Pb Pb Collisions
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Author : Harald Appelshäuser
language : en
Publisher:
Release Date : 1998
Xi And Xi Bar Production In 158 Gev Nucleon Pb Pb Collisions written by Harald Appelshäuser and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.