Download or read book A measurement of pi 0 pi 0 production in two photon collisions written by H. Marsiske and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of pi pi pi 0 Production in Two photon Collisions at LEP written by and published by . This book was released on 2005 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A measurement of 347 347 pi pi production in two photon collisions written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photon and Neutral Pi 0 Production in 197 Au 197 Au Collisions at Sqrt S NN written by and published by . This book was released on 2002 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book A measurement of p p pi pi production in two photon collisions written by Deutsches Elektronen-Synchrotron (Hamburg). and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Massive pi 0 pi 0 pi 0 pi and pi 0 pi Production from 515 GeV c pi Collisions with Beryllium and Copper Tergets written by Paoti Chang and published by . This book was released on 1994 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The pi pi pi 0 Final State in Two photon Collisions at Belle written by BELLE and published by . This book was released on 2001 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Two pion production in photon photon collisions written by Johan Bijnens and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photon and pi 0 Production in 197Au 197Au Collisions at square Root NN written by Ian Jeffrey Johnson and published by . This book was released on 2002 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pi Pi Gamma and K K Production Production in Two photon Collisions at ARGUS written by Kenneth William MacLean and published by . This book was released on 1990 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pi Pi Gamma and Kappa Kappa Production in Two Photon Collisions at ARGUS written by Kenneth W. McLean and published by . This book was released on 1990 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The production of the final states K$ sp+$K$ sp-$ and $ eta sp prime to pi sp+ pi sp- gamma$ in $ gamma gamma$ collisions has been measured using the ARGUS detector. The product $ Gamma sb{ gamma gamma}( eta sp prime)$Br$( eta sp prime to rho gamma)$ has been determined. The topological cross section for the production of charged kaon pairs in two-photon collisions has been measured and the $ gamma gamma$-widths and interference parameters for the tensor mesons f$ sb2$(1270), a$ sb2$(1320) and f$ sbsp{2}{ prime}$(1525) have been extracted. The helicity structure assumed for the K$ sp+$K$ sp-$ continuum contribution has a significant effect on the result. Upper limits have been obtained for the $ gamma gamma$-widths of the glueball candidate states f$ sb2$(1720) and X(2230)." --

Download or read book 0 mesons pi 0 mesons and Photons Measured in Au Au Collisions at an Energy of SNN written by Alexander Albert Wetzler and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pi pi gamma and K K production in two photon collisions at ARGUS written by Kenneth W. McLean and published by . This book was released on 1990 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photon and pi 0 Production in 197Au 197Au Collisions at square Root SNN written by Ian Jeffrey Johnson and published by . This book was released on 2002 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pi 0 Production at High Transverse Momenta from Pi Collisions at 520 GeV c on Be and Cu Targets written by Nikos Varelas and published by . This book was released on 1994 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of pi 0 eta and Direct Photon Production at High Transverse Momentum written by Michael R. McLaughlin and published by . This book was released on 1983 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 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 published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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