Photon And Pi 0 Production In 197au 197au Collisions At Square Root Snn

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Photon And Pi 0 Production In 197au 197au Collisions At Square Root Snn

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Author : Ian Jeffrey Johnson
language : en
Publisher:
Release Date : 2002

Photon And Pi 0 Production In 197au 197au Collisions At Square Root Snn written by Ian Jeffrey Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Photon And Pi 0 Production In 197au 197au Collisions At Square Root Nn

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Author : Ian Jeffrey Johnson
language : en
Publisher:
Release Date : 2002

Photon And Pi 0 Production In 197au 197au Collisions At Square Root Nn written by Ian Jeffrey Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Photon And Neutral Pi 0 Production In 197 Au 197 Au Collisions At Sqrt S Nn

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Author :
language : en
Publisher:
Release Date : 2002

Photon And Neutral Pi 0 Production In 197 Au 197 Au Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Inclusive transverse momentum spectra of photons and [pi]°s at mid-rapidity are studied as a function of collision centrality for 197Au+ 197Au collisions at √s{sub NN} = 130 GeV. Photon pair conversions have been reconstructed from charged tracks measured by the main Time Project Chamber of the STAR experiment at the RHIC heavy ion facility. The transverse momentum resolution of photons with this method is estimated to be [Delta]p{sub t}/p{sub t} = 2% at 0.125 GeV/c and 5% at 2.5 GeV/c. Photon spectra were measured up to a transverse momentum of 2.4 GeV/c between ± 0.5 units of rapidity. The dominant photon production mechanism, the [pi]° → [gamma][gamma] decay, was measured between 0.25-2.5 GeV/c and ± 1 units of rapidity. Spectra are reported for the top 11%, 11-34% and 34-85% centrality classes. It was observed that in mid-central and central collisions the relative contribution of the [pi]° → [gamma][gamma] decay to the inclusive photon spectrum decreases above a transverse momentum of 1.65 GeV/c. In central collisions the magnitude of the decrease from p{sub t} = 1.65 GeV/c to 2.4 GeV/c is 20%. It is unlikely that contributions from other [pi]° decay channels and other particle decays fully explain this decrease. The centrality dependence on the shapes of the [pi]° spectra was analyzed with Boltmann and Bose-Einstein functions. In the transverse momentum windows of the spectra, the extracted temperatures are near 0.295 GeV. These temperatures are substantially higher than those extracted from [pi]{sup {+-}} spectra in a lower range of transverse momentum. This is an indication that the shapes of the pion spectra deviate from purely exponential shapes.

Photon And Neutral 0 Sup Production In Sup197au Sup197 Supau Collisions At U221a Ssubnn

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Author :
language : en
Publisher:
Release Date : 2002

Photon And Neutral 0 Sup Production In Sup197au Sup197 Supau Collisions At U221a Ssubnn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Inclusive transverse momentum spectra of photons and ?0s at mid-rapidity are studied as a function of collision centrality for 197Au+ 197Au collisions at √sNN = 130 GeV. Photon pair conversions have been reconstructed from charged tracks measured by the main Time Project Chamber of the STAR experiment at the RHIC heavy ion facility. The transverse momentum resolution of photons with this method is estimated to be ?pt/pt = 2% at 0.125 GeV/c and 5% at 2.5 GeV/c. Photon spectra were measured up to a transverse momentum of 2.4 GeV/c between ± 0.5 units of rapidity. The dominant photon production mechanism, the ?0 → ?? decay, was measured between 0.25-2.5 GeV/c and ± 1 units of rapidity. Spectra are reported for the top 11%, 11-34% and 34-85% centrality classes. It was observed that in mid-central and central collisions the relative contribution of the ?0 → ?? decay to the inclusive photon spectrum decreases above a transverse momentum of 1.65 GeV/c. In central collisions the magnitude of the decrease from pt = 1.65 GeV/c to 2.4 GeV/c is 20%. It is unlikely that contributions from other ?0 decay channels and other particle decays fully explain this decrease. The centrality dependence on the shapes of the ?0 spectra was analyzed with Boltmann and Bose-Einstein functions. In the transverse momentum windows of the spectra, the extracted temperatures are near 0.295 GeV. These temperatures are substantially higher than those extracted from ?± spectra in a lower range of transverse momentum. This is an indication that the shapes of the pion spectra deviate from purely exponential shapes.

Inclusive Pi 0 Eta And Direct Photon Production At High Transverse Momentum In P P And D Au Collisions At Sqrt S Nn

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Author :
language : en
Publisher:
Release Date : 2010

Inclusive Pi 0 Eta And Direct Photon Production At High Transverse Momentum In P P And D Au Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

We report a measurement of high-p{sub T} inclusive [pi]°, [eta], and direct photon production in p + p and d + Au collisions at √s{sub NN} = 200 GeV at midrapidity (0

Photon Production From Proton Antiproton Collisions At Square Root S

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Author : Thomas Gordon Carter
language : en
Publisher:
Release Date : 1990

Photon Production From Proton Antiproton Collisions At Square Root S written by Thomas Gordon Carter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Particles (Nuclear physics) categories.

A Search In The Two Photon Final State For Evidence Of New Particle Production In Pp Collisions At Square Root 8

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Author : Rachel Paula Yohay
language : en
Publisher:
Release Date : 2012

A Search In The Two Photon Final State For Evidence Of New Particle Production In Pp Collisions At Square Root 8 written by Rachel Paula Yohay and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

Analysis Of Pi Pi Pi 0 Production In Two Photon Collisions At Lep

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Author :
language : en
Publisher:
Release Date : 2005

Analysis Of Pi Pi Pi 0 Production In Two Photon Collisions At Lep written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Isolated Direct Double Photon Production In P P Collisions At Square Root Of S

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Author : Wei Chen
language : en
Publisher:
Release Date : 1997

Isolated Direct Double Photon Production In P P Collisions At Square Root Of S written by Wei Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Direct reactions (Nuclear physics) categories.

Measurement Of Isolated Photon Production In Pp And Pbpb Collisions At Sqrt S Nn

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Author :
language : en
Publisher:
Release Date : 2012

Measurement Of Isolated Photon Production In Pp And Pbpb Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.