Download or read book Rapidity Dependence of the Inclusive J psi Production in P bar P Collisions At radical written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied the[ital J]/[psi] production in[ital p][ital[anti p]] collisions at[radical]s= 1.8 TeV with the D[null] detector at the Fermilab Tevatron, using a[mu][sup+][mu][sup -] data sample collected during the 1994-95 running period. We have measured the inclusive[ital J]/[psi] production cross section as a function of the[ital J]/[psi] transverse momentum, [ital P][sub T][sup[ital J]/[psi]] in the central and forward rapidity regions. The new measurement of the cross section[ital d[sigma]/dp][sub T][sup[ital J]/[psi]] for[vert-bar][eta][sup[ital J]/[psi]][vert-bar][lt] 0.6 is in a good agreement with the CDF and earlier D[null] results. The cross section measurement[ital d[sigma]/dp][sub T][sup[ital J]/[psi]] for 2.5[lt][vert-bar][eta][sup[ital J]/[psi]][vert-bar][lt] 3.7 covers the[ital p][sub T][sup[ital J]/[psi]] range from 1 to 16 GeV/c. We combine the measurements in several[vert-bar][eta][sup[ital J]/[psi]][vert-bar] regions to discuss[ital d[sigma]/d[eta]][sup[ital J]/[psi]] for[ital p][sub T][sup[ital J]/[psi]][gt] 8 GeV/c. The data are compared with the next-to- leading order (NLO) QCD calculations, which take into account different[ital J]/[psi] production mechanisms.

Download or read book Rapidity Dependence of Inclusive J Over Psi Production in Proton antiproton Collisions at Square Root S Equals 1 8 Tera electron Volts written by Tong Hu and published by . This book was released on 1998 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapidity Dependence of the Inclusive J Production in P bar P Collisions at s written by and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied J/? production in p{bar p} collisions at √s = 1.8 TeV with the D0 detector at Fermilab, using a??− data sample collected during the 1994--1995 collider run. We have measured the inclusive J/? production cross section as a function of the J/? transverse momentum, p{sub T}{sup J/?}, in the central and forward rapidity regions. The cross section d?/dp{sub T}{sup J/{psi}} for {vert_bar}?{sup J/{psi}}{vert_bar}0.6 covers the p{sub T}{sup J/{psi}} range from 8 to 20 GeV/c. The new measurements are in a good agreement with the CDF and earlier D0 results. The cross section d?/dp{sub T}{sup J/{psi}} for 2.6

Download or read book Rapidity Dependence of the Inclusive J psi Production in P bar P Collisions at written by and published by . This book was released on 1996 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book J psi Production in Proton antiproton Collisions at square Root S written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapidity and Transverse momentum Dependence of the Inclusive J psi Nuclear Modification Factor in P Pb Collisions at sqrt s N N written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Here we have studied the transverse-momentum (pT) dependence of the inclusive J/$\psi$ production in p-Pb collisions at root $\sqrt{s_{N\ N}}$ = 5.02 TeV, in three center-of-mass rapidity (ycms) regions, down to zero pT. Results in the forward and backward rapidity ranges (2.03

Download or read book Inclusive Prompt and Non prompt J psi Production at Mid rapidity in Pb Pb Collisions at sqrt s mathrm NN written by and published by . This book was released on 2015 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, the transverse momentum (pT) dependence of the nuclear modification factor RAA and the centrality dependence of the average transverse momentum pT for inclusive J/[psi] have been measured with ALICE for Pb-Pb collisions at √sNN=2.76 TeV in the e+e- decay channel at mid-rapidity (

Download or read book J psi Production in Au Au Collisions at Square Root s sub NN written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the first J/psi production analysis of Au+Au reactions at forward rapidity at [square root]sNN = 200 GeV. In the second year of RHIC running, design energy was achieved in the collisions of both Au+Au ions and proton+proton reactions. The production of the J/psi is measured by the PHENIX experiment in Au+Au collisions as well as in proton-proton collisions. The scientific goal is to investigate the nature of hot, dense nuclear matter capitalizing on the unique properties of the J/psi as a probe of this matter. Recent experimental results by the NA50 collaboration at CERN strongly deviate from the conventional picture that successfully describes data at lower energies. The importance of such a measurement is demonstrated by the wide spectrum of theoretical explanations concerning the existing data. The merits of these models will be explored in a systematic and comprehensive study of the J/psi and open charm in collisions of a variety of species and energy. A survey of the theoretical models is presented and the relevant open charm and J/psi PHENIX measurements are compared.

Download or read book Rapidity and Centrality Dependence of Proton and Anti proton Production from 197Au 197Au Collisions at s sub NN written by and published by . This book was released on 2003 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the rapidity and centrality dependence of proton and anti-proton transverse mass distributions from 197Au + 197Au collisions at √s{sub NN} = 130 GeV as measured by the STAR experiment at RHIC. Our results are from the rapidity and transverse momentum range of.

Download or read book Centrality Rapidity And Transverse Momentum Dependence of Cold Nuclear Matter Effects on J Psi Production in D Au Cu Cu And Au Au Collisions at S NN 1 2 written by and published by . This book was released on 2011 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have carried out a wide study of Cold Nuclear Matter (CNM) effects on J/[Psi] = production in dAu, CuCu and AuAu collisions at √s{sub NN} = 200 GeV. We have studied the effects of three different gluon-shadowing parameterizations, using the usual simplified kinematics for which the momentum of the gluon recoiling against the J/[Psi] is neglected as well as an exact kinematics for a 2 → 2 process, namely g + g → J/[psi] + g as expected from LO pQCD. We have shown that the rapidity distribution of the nuclear modification factor R{sub dAu}, and particularly its anti-shadowing peak, is systematically shifted toward larger rapidities in the 2 → 2 kinematics, irrespective of which shadowing parameterization is used. In turn, we have noted differences in the effective final-state nuclear absorption needed to fit the PHENIX dAu data. Taking advantage of our implementation of a 2 → 2 kinematics, we have also computed the transverse momentum dependence of the nuclear modification factor, which cannot be predicted with the usual simplified kinematics. All the corresponding observables have been computed for CuCu and AuAu collisions and compared to the PHENIX and STAR data. Finally, we have extracted the effective nuclear absorption from the recent measurements of RCP in dAu collisions by the PHENIX collaboration.

Download or read book Inclusive J psi Production at Mid rapidity in Pb Pb Collisions at Sqrt s NN written by Raúl Tonatiuh Jiménez Bustamante and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inclusive J psi Production at Mid rapidity in P Pb Collisions at sNN written by Michael Winn and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inclusive Cross Section of J psi Particles in the Far Forward Direction in Proton antiproton Collisions at Center of Mass Energy Equal to 1 8 TeV written by Joseph Robert Steele and published by . This book was released on 2000 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapidity Dependence of the Single Inclusive Jet Cross Section in Proton antiproton Collisions at the Center of mass Energy of 1 8 Tev with the Dzero Detector PHD written by Levan Babukhadia and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Centrality Dependence of Inclusive J psi Production in P Pb Collisions at sqrt s mathrm NN written by and published by . This book was released on 2015 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book J psi Production at High Transverse Momenta in P p and Cu Cu Collisions at Sqrt SNN written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The STAR collaboration at RHIC presents measurements of J/[psi] → e+e− at mid-rapidity and high transverse momentum (p{sub T} > 5 GeV/c) in p+p and central Cu+Cu collisions at √sNN = 200 GeV. The inclusive J/[psi] production cross section for Cu+Cu collisions is found to be consistent at high p{sub T} with the binary collision-scaled cross section for p+p collisions, in contrast to previous measurements at lower p{sub T}, where a suppression of J/[psi] production is observed relative to the expectation from binary scaling. Azimuthal correlations of J/[psi] with charged hadrons in p+p collisions provide an estimate of the contribution of B-meson decays to J/[psi] production of 13% ± 5%.

Download or read book Measurement of the Square Root of S Dependence of Isolated Direct Photon Production in Proton antiproton Collisions written by Dana Partos and published by . This book was released on 2001 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: