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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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 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 : 2003

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 2003 with categories.

Inclusive transverse momentum spectra of photons and[pi][sup 0]s at mid-rapidity are studied as a function of collision centrality for[sup 197]Au+[sup 197]Au collisions at[radical]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][sup 0][yields][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][sup 0][yields][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][sup 0] decay channels and other particle decays fully explain this decrease. The centrality dependence on the shapes of the[pi][sup 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[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.

Measurement Of Pi 0 Eta And Direct Photon Production At High Transverse Momentum

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Author : Michael R. McLaughlin
language : en
Publisher:
Release Date : 1983

Measurement Of Pi 0 Eta And Direct Photon Production At High Transverse Momentum written by Michael R. McLaughlin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.

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.

Inclusive Pi 0 And Eta 0 Production At Large Transverse Momentum In 300 Gev C P Be Collisions

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Author : Stephen West Delchamps
language : en
Publisher:
Release Date : 1985

Inclusive Pi 0 And Eta 0 Production At Large Transverse Momentum In 300 Gev C P Be Collisions written by Stephen West Delchamps and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.

Direct Photon Production From

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Author :
language : en
Publisher:
Release Date : 1992

Direct Photon Production From written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

A preliminary differential cross section d[sup 2][sigma]/d[sub pT]d[sub [eta]] for the inclusive production of direct photons, p[bar p] [yields] [gamma] + X, at [radical]s = 1.8 TeV is presented. Photon candidate events included in the cross section are in the transverse momentum range 14 [lt] pT [lt] 90 GeV/c and the pseudorapidity range [minus]0.9 [lt] [eta] [lt] 0.9. The estimate of the background in the photon candidate sample due to multi-photon sources is discussed. The data are compared with recent next-to-leading-order predictions.

A Measurement Of Direct Photon Production At Large Transverse Momentum In 346p P And Pp Collisions At 300 Gev C

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Author : Carlo De Marzo
language : de
Publisher:
Release Date : 1986

A Measurement Of Direct Photon Production At Large Transverse Momentum In 346p P And Pp Collisions At 300 Gev C written by Carlo De Marzo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.

A Measurement Of Direct Photon Production At Large Transverse Momentum In P P And Pp Collisions At 300 Gev C

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Author :
language : en
Publisher:
Release Date : 1986

A Measurement Of Direct Photon Production At Large Transverse Momentum In P P And Pp Collisions At 300 Gev C written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.

Centrality Dependence Of Inclusive J Psi Production In P Pb Collisions At Sqrt S Mathrm Nn

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Author :
language : en
Publisher:
Release Date : 2015

Centrality Dependence Of Inclusive J Psi Production In P Pb Collisions At Sqrt S Mathrm 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 2015 with categories.

Here, we present a measurement of inclusive J/[Psi] production in p-Pb collisions at √SNN = 5.02 TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. We also performed this measurement with the ALICE detector down to zero transverse momentum, pT, in the backward (-4.46

Direct Photon Production In Pb Pb Collisions At Mml

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Author :
language : en
Publisher:
Release Date : 2016

Direct Photon Production In Pb Pb Collisions At Mml 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.

We studied the direct photon production at mid-rapidity in Pb-Pb collisions at √sNN = 2.76 TeV in the transverse momentum range 0.9