Femtoscopic Proton Lambda And Gamma Gamma Correlations In Pb Pb Collisions At Sqrt Snn
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Femtoscopic Proton Lambda And Gamma Gamma Correlations In Pb Pb Collisions At Sqrt Snn
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Author : Hans Beck
language : en
Publisher:
Release Date : 2015
Femtoscopic Proton Lambda And Gamma Gamma Correlations In Pb Pb Collisions At Sqrt Snn written by Hans Beck 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.
Femtoscopic P Lambda And Gamma Gamma Correlations In Pb Pb Collisions At Snn
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Author : Hans Beck
language : en
Publisher:
Release Date : 2015
Femtoscopic P Lambda And Gamma Gamma Correlations In Pb Pb Collisions At Snn written by Hans Beck 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.
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.
Measurement Of W Gamma And Z Gamma Production In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2011
Measurement Of W Gamma And Z Gamma Production In Pp 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 2011 with categories.
A measurement of W-gamma and Z-gamma production in proton-proton collisions at sqrt(s) = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 inverse picobarns. The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy>10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle>0.7, and with an additional dilepton invariant mass requirement of> 50 GeV for the Z-gamma process. The following cross section times branching fraction values are found: sigma(pp to W-gamma+X) B(W to lepton neutrino) = 56.3 +/- 5.0 (stat.) +/- 5.0 (syst.) +/- 2.3 (lumi.) pb and sigma(pp to Z-gamma+X) B}(Z to lepton lepton) = 9.4 +/- 1.0 (stat.) +/- 0.6 (syst.) +/- 0.4 (lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z gamma gamma trilinear gauge couplings at sqrt(s) = 7 TeV are set.
Schweitzerisches Kriegs Recht Dem Publico Er Ffnet Durch Einen Practicirten Secretarium
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Author :
language : en
Publisher:
Release Date : 1704
Schweitzerisches Kriegs Recht Dem Publico Er Ffnet Durch Einen Practicirten Secretarium written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1704 with categories.
Proton Lambda Correlations In Au Au Collisions At Square Root Nn
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Author : G. RENAULT
language : en
Publisher:
Release Date : 2004
Proton Lambda Correlations In Au Au Collisions At Square Root Nn written by G. RENAULT and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
The space-time evolution of the source of particles formed in the collision of nuclei can be studied through particle correlations. The STAR experiment is dedicated to study ultra-relativistic heavy ions collisions and allows to measure non-identical strange particle correlations. The source size can be extracted by studying p - {Lambda}, {bar p} - {bar {Lambda}}, {bar p} - {Lambda} and p - {bar {Lambda}} correlation functions. Strong interaction potential has been studied for these systems using an analytical model. Final State Interaction (FSI) parameters have been determined and has shown a significant annihilation process present in {bar p} - {Lambda} and p - {bar {Lambda}} systems not present in p - {Lambda} and {bar p} - {bar {Lambda}}.
Modification Of K0s And Lambda Antilambda Transverse Momentum Spectra In Pb Pb Collisions At Snn 2 76 Tev With Alice
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Author : Simone Schuchmann
language : en
Publisher: Springer
Release Date : 2016-09-01
Modification Of K0s And Lambda Antilambda Transverse Momentum Spectra In Pb Pb Collisions At Snn 2 76 Tev With Alice written by Simone Schuchmann and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-01 with Science categories.
This thesis offers an excellent, comprehensive introduction to the physics of the quark–gluon plasma. It clearly explains the connection between theory and experiment, making the topic accessible to non-specialists in this field. The experimental work, which contributes significantly to our understanding of the quark–gluon plasma, is described in great detail. The results described in the final chapters of the thesis provide interesting new ideas about the connection between proton-proton and Pb-Pb collisions. Simone Schuchmann received the 'ALICE Thesis Award 2016' for this excellent work.
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.
Charge Correlations And Collective Dynamics In Pb Pb Collisions At Sqrt Snn
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Author : Jacobus Onderwaater
language : en
Publisher:
Release Date : 2017
Charge Correlations And Collective Dynamics In Pb Pb Collisions At Sqrt Snn written by Jacobus Onderwaater and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
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.