Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The results of mid-rapidity (0
Neutral Pion Production in Au+Au Collisions at Sqrt SNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The results of mid-rapidity (0
Photon and Neutral Pion Production in D-Au Collisions at RHIC
Author: Jean-Franc̦ois PaquetNeutral Pion Production in Nucleus-nucleus Collisions at 158 and 200 GeV/nucleon
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
Two years ago, at the 12th Winter Workshop on Nuclear Dynamics held here in Snowbird, the authors presented WA80 limits on direct photon production in 200-GeV 32S + Au collisions. It was found that the results were consistent (within 1[sigma]) with the absence of an excess of photons over those that can be accounted for by the two-photon decay branches of [pi]° and [eta] mesons and by the small photon contributions from other radiative decays. They are in the process of finalizing the direct-photon production results from collisions of lead nuclei at 158 GeV/nucleon. The author briefly discusses the status of the analysis and gives some preliminary results at the end of this talk. However, most of this presentation is concerned with a very different aspect of the photon measurements: distributions of neutral pions. In contrast to direct photons which probe initial collision conditions, hadrons, such as neutral pions, interact strongly and decouple late in the reaction evolution and, thus, provide information concerning the system at freeze out. Transverse momentum spectra at low and intermediate p{sub T} relate to thermodynamic and hydrodynamic descriptions of the hot, dense systems. In addition, the high-p{sub T} region reflects the hard-scattering regime and may help one understand initial-state particle production by forming a bridge to proton-proton and proton-nucleus results. It follows that it is essential that the [pi]° measurements cover a large p{sub T} range.
Pion Interferometry in Au+Au and Cu+Cu Collisions at Sqrt SNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present a systematic analysis of two-pion interferometry in Au+Au collisions at (square root)sNN = 62.4 GeV and Cu+Cu collisions at (square root)sNN = 62.4 and 200 GeV using the STAR detector at RHIC. The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volume at final interaction is studied for the RHIC energy domain. The multiplicity scaling of the measured correlation radii is found to be independent of colliding system and collision energy.
Parameterized Cross Sections for Pion Production in Proton-Proton Collisions
Author: Steve R. BlattnigPublisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 88
Book Description
Production of neutral pions in PB+Au collisions at 158 AGeV-c
Author: Rachik Soualahשולחן ערוך - חוט שני
Author: Cross-Section Parameterizations for Pion and Nucleon Production From Negative Pion-Proton Collisions
Author: John W. NorburyPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 50
Book Description
Production of Neutral Pions and Direct Photons in Ultra-relativistic Au + Au Collisions
Author: Christian Klein-BösingPublisher:
ISBN:
Category :
Languages : en
Pages : 269
Book Description
Author: Shreyasi Acharya