Download or read book Transverse Momentum Distributions of Neutral Pions from Sup 16 O Au Collisions at 200 GeV nucleon written by and published by . This book was released on 1989 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: One means of studying the properties of the compressed and highly excited reaction zone is the investigation of {sub pT} spectra of produced pions and their dependence on the centrality of the reaction. To distinguish different contributing processes and to provide a reliable basis for comparisons with p + p scattering, a large {sub pT} coverage is required. In particular, data at high {sub pT} values, where hard processes become important and may be calculated by perturbative QCD are of interest. The present study of [pi]° spectra concentrates on measurements of {sub pT} spectra up to 2.8 GeV/c and on selections of the data according to the centrality of the reaction. 8 refs., 4 figs.

Download or read book Transverse Momentum Distributions of Neutral Pions from Central and Peripheral 16O Au Collisions at 200 AGeV written by R. Albrecht and published by . This book was released on 1989 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identified Particle Transverse Momentum Distributions from AU AU Collisions at 62 4 GeV Per Nucleon Pair written by Conor Henderson and published by . This book was released on 2005 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inclusive Observation of Neutral Pions from Pion proton Collisions at 14 GeV c written by Lawrence Henry O'Neill and published by . This book was released on 1975 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of High Transverse Momentum Direct Photon and Neutral Pion Events in Negative Pion and Proton nucleus Collisions at 31 5 GeV Center of Mass Energy written by David Shaw Brown and published by . This book was released on 1992 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pion Kaon Proton and Anti proton Transverse Momentum Distributions from P p and D Au Collisions at Sqrt sNN written by and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identified mid-rapidity particle spectra of [pi]{sup ±}, K{sup ±}, and p({bar p}) from 200 GeV p+p and d+Au collisions are reported. A time-of-flight detector based on multi-gap resistive plate chamber technology is used for particle identification. The particle-species dependence of the Cronin effect is observed to be significantly smaller than that at lower energies. The ratio of the nuclear modification factor (R{sub dAu}) between (p+ {bar p}) and charged hadrons (h) in the transverse momentum range 1.2

Download or read book Cross Section Parameterizations for Pion and Nucleon Production From Negative Pion Proton Collisions written by John W. Norbury and published by . This book was released on 2002 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Multiplicity Pion Production in 25 GeV c Pi minus proton Collisions written by Jerome William Elbert and published by . This book was released on 1972 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parameterized Cross Sections for Pion Production in Proton Proton Collisions written by Steve R. Blattnig and published by . This book was released on 2000 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parameterizations of Pion Energy Spectrum in Nucleon Nucleon Collisions written by Francis A. Cucinotta and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pion Production at 180 in Nucleus nucleus Collisions written by Stephen Alan Chessin and published by . This book was released on 1983 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Inclusive Production of Neutral Pions at High Transverse Momentum 100 to 300 GeV c Scaling written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: These are the results of a measurement of inclusive production at high transverse momentum (P perpendicular to) of neutral pions (.pi./sup 0/) from protons by beams of proton (p), kaon (K), pion (.pi.), and antiproton (antiproton) particles. The experiment used the Fermilab M2 beam line at momenta of 100, 200 and 300 GeV/c striking a liquid hydrogen target. The data include center of mass (cm) production angles of the .pi./sup 0/ between 2/sup 0/ and 115/sup 0/ for P perpendicular to greater than 1 GeV/c. A pair of differential Cherenkov counters distinguished the types of beam particles. The photon (.gamma.) detector of a lead and scintillator sandwich measured both photons from the .pi./sup 0/ .-->. 2.gamma. decay and enabled a reconstruction of the .pi./sup 0/ kinematics. The measurements show several remarkable features distinguishing the production rates for these different beams, including a forward peak in the cm for .pi.p collisions and much less .pi./sup 0/ production at high P perpendicular to in pp than in .pi.p or Kp collisions. A simple parametrization accurately represents the data over most of its range, showing approximate scaling in the radial variable x/sub R/ = 2P/.sqrt.s (in the cm). Several parton models are compared with the data. A heuristic picture in terms of the quark constituents of the interacting hadrons accounts for many features of the data in an intuitive way. 62 references.

Download or read book Transverse Momentum Dependence of Bose Einstein Correlations in S nucleus Collisions at 200 GeV written by and published by . This book was released on 1994 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NA35 experiment has collected a high statistics set of momentum analyzed negative hadrons near and forward of mid-rapidity for central collisions of 200 GeV/Nucleon 32S projectiles incident on S, Ag and Au targets. Using two pion momentum space correlations in order to study the size of the source of particle production, small dependences upon transverse momentum are found for the transverse source dimensions; however for the heaviest system, R{sub long} decreases by about 40% as transverse momentum is increased over the interval 50

Download or read book Neutral Pions from Proton proton Collisions at 735 Mev written by Gilbert D. Mead and published by . This book was released on 1962 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Squeeze out and Flow of Pions from 1 15 GeV nucleon Au Au written by Jessica Challinor Kintner and published by . This book was released on 1995 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: