Author: Jennifer Lynn KlayPublisher:
ISBN:
Category :
Languages : en
Pages : 436
Book Description
Transverse Mass and Rapidity Spectra of Pions and Protons from AuAu Collisions at the Alternating Gradient Synchrotron
Author: Jennifer Lynn KlayIdentified Particle Transverse Momentum Spectra in P+P and D+au Collisions at SNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 3
Book Description
The transverse momentum (pT) spectra for identified charged pions, protons and anti-protons from p+p and d+Au collisions are measured around midrapidity).
Identified Particle Transverse Momentum Distributions from AU + AU Collisions at 62.4 GeV Per Nucleon Pair
Author: Conor HendersonPublisher:
ISBN:
Category :
Languages : en
Pages : 322
Book Description
Transverse momentum (PT) distributions for pions, kaons, protons and antiprotons have been measured near mid-rapidity for Au+Au collisions at sNN = 62.4 GeV using the PHOBOS detector at the Relativistic Heavy-Ion Collider (RHIC) in Brookhaven National Laboratory. Particle identification is performed using the PHOBOS Time-of-Flight plastic scintillator walls and specific energy loss in the multi-layer silicon Spectrometer, which is also used for track reconstruction and momentum-determination. The spectra are corrected for all detector-dependent effects, including feed-down from weak decays. At PT 3 GeV/c, protons are measured to be the dominant species of charged hadrons and scale much faster with respect to collision centrality than mesons. This behaviour at 62.4 GeV is found to be remarkably similar to that observed in Au+Au collisions at 200 GeV, an interesting observation which should serve as an important constraint on the various mechanisms which have been proposed to describe particle production over this PT range. Baryon stopping, the transport of baryon number from intial beam rapidity, is explored through the net proton (p - p) yields at mid-rapidity. These results fill a large gap between the SPS and higher RHIC energies and as such form an important set of data for comparing to models of baryon transport mechanisms.
Identified Particle Distributions in Pp and Au+Au Collisions Atsqrt SNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for √sNN = 200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within.
Energy Dependence of Pi, P and Pbar Transverse Momentum Spectra for Au+Au Collisions at Sqrt SNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 10
Book Description
We study the energy dependence of the transverse momentum (pT) spectra for charged pions, protons and anti-protons for Au+Au collisions at sqrt sNN = 62.4 and 200 GeV. Data are presented at mid-rapidity (lbar y rbar0.5) for 0.2pT
Energy Research Abstracts
Author: Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 660
Book Description
Rapidity and Species Dependence of Particle Production at Largetransverse Momentum for D+Au Collisions at PsNN
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We determine rapidity asymmetry in the production of charged pions, protons and anti-protons for large transverse momentum (p{sub T}) for d+Au collisions at √s{sub NN} = 200 GeV. The rapidity asymmetry is defined as the ratio of particle yields at backward rapidity (Au beam direction or -ve rapidity) to those at forward rapidity (d beam direction or +ve rapidity). The identified hadrons are measured in the rapidity regions.
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 776
Book Description
A Systematic, Large Phase Space Study of Pion (pi [superscript ±), Kaon (K [superscript ±), and Proton (p, P) Production in Au+Au Heavy-ion Collisions from the RHIC Beam Energy Scan Program at STAR
Author: Christopher Edward FloresPublisher:
ISBN: 9780355461046
Category :
Languages : en
Pages :
Book Description
The Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC) was designed to explore the phase diagram of nuclear matter. In this document data collected using the Solenoidal Tracker at RHIC (STAR) during the BES program are used to study the production of pion (pi [superscript ±), kaon (K [superscript ±), and proton (p, p) across seven collision energies, [root s[subscript NN] = 7.7, 11.5, 14.5, 19.6, 27.0, 39.0, and 62.4 GeV. The results are presented differentially in nine centrality bins and over as broad a transverse mass and rapidity range as the detector capabilities allow. The yields of each particle species are first presented as transverse mass spectra. The spectra are then fit with spectral shapes to extract rapidity density distributions. Full phase space yields are also obtained for the case of the pion. These results help characterize the nature of the medium produced in heavy-ion collisions. In particular, the dependence of the medium's chemistry, expansion properties, and thermal condition on collision energy, event centrality, and kinematic phase space are now accessible using the results of this study.