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Suppression Of Non Prompt J Psi Prompt J Psi And Y1s In Pbpb Collisions At Sqrtsnn
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Book Synopsis Suppression of Non-prompt J/psi, Prompt J/psi, and Y(1S) in PbPb Collisions at Sqrt(sNN) by :
Download or read book Suppression of Non-prompt J/psi, Prompt J/psi, and Y(1S) in PbPb Collisions at Sqrt(sNN) written by and published by . This book was released on 2012 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yields of prompt and non-prompt J/psi, as well as Y(1S) mesons, are measured by the CMS experiment via their dimuon decays in PbPb and pp collisions at sqrt(sNN) = 2.76 TeV for quarkonium rapidity.
Book Synopsis Prompt and Non-prompt J/psi Production in Pp Collisions at Sqrt(s) by :
Download or read book Prompt and Non-prompt J/psi Production in Pp Collisions at Sqrt(s) written by and published by . This book was released on 2011 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of J/psi mesons is studied in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 inverse nanobarns. The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range.
Book Synopsis Suppression and Azimuthal Anisotropy of Prompt and Nonprompt $J/\psi$ Production in PbPb Collisions at $\sqrt{s_{NN}}$ by :
Download or read book Suppression and Azimuthal Anisotropy of Prompt and Nonprompt $J/\psi$ Production in PbPb Collisions at $\sqrt{s_{NN}}$ written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The nuclear modification factor ${R_{\mathrm{AA}}} $ and the azimuthal anisotropy coefficient ${v_{2}} $ of prompt and nonprompt (i.e. those from decays of b hadrons) $\mathrm{J}/\psi$ mesons, measured from PbPb and pp collisions at $\sqrt{s_{\mathrm{NN}}} = $ 2.76 TeV at the LHC, are reported. The results are presented in several event centrality intervals and several kinematic regions, for transverse momenta $p_{\mathrm{T}}> $ 6.5 GeV/$c$ and rapidity $
Book Synopsis Measurement of Prompt and Nonprompt J/psi Production in Pp and PPb Collisions at Sqrt(s[NN] by :
Download or read book Measurement of Prompt and Nonprompt J/psi Production in Pp and PPb Collisions at Sqrt(s[NN] written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports the measurement of J/psi meson production in proton-proton (pp) and proton-lead (pPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV by the CMS experiment at the LHC. The data samples used in the analysis correspond to integrated luminosities of 28 inverse picobarns and 35 inverse nanobarns for pp and pPb collisions, respectively. Prompt and nonprompt J/psi mesons, the latter issuing from the decay of B mesons, are measured in their dimuon decay channels. Differential cross sections are measured in the transverse momentum range of 2
Book Synopsis J/psi Production at High Transverse Momenta in P+p and Cu+Cu Collisions at Sqrt SNN by :
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%.
Book Synopsis Measurement of Prompt Psi(2S) to J/psi Yield Ratios in PbPb and Pp Collisions at Sqrt(s[NN] by :
Download or read book Measurement of Prompt Psi(2S) to J/psi Yield Ratios in PbPb and Pp Collisions at Sqrt(s[NN] written by and published by . This book was released on 2014 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ratio between the prompt psi(2S) and J/psi yields, reconstructed via their decays into muon pairs, is measured in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV. The analysis is based on PbPb and pp data samples collected by CMS at the LHC, corresponding to integrated luminosities of 150 inverse microbarns and 5.4 inverse picobarns, respectively. The double ratio of measured yields, (N[psi(2S)]/N[J/psi])[PbPb] / (N[psi(2S)]/ N[J/psi])[pp], is computed in three PbPb collision centrality bins and two kinematic ranges: one at midrapidity, abs(y)
Book Synopsis Inclusive, Prompt and Non-prompt J/[psi] Production at Mid-rapidity in Pb-Pb Collisions at $ \sqrt{s_{\mathrm{NN}}} by :
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 (
Book Synopsis J/psi and Psi(2S) Production in Pp Collisions at Sqrt(s) by :
Download or read book J/psi and Psi(2S) Production in Pp Collisions at Sqrt(s) written by and published by . This book was released on 2012 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the J/psi and psi(2S) production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 inverse picobarns. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt charmonium states, as a function of the meson transverse momentum in several rapidity ranges. In addition, cross sections restricted to the acceptance of the CMS detector are given, which are not affected by the polarization of the charmonium states. The ratio of the differential production cross sections of the two states, where systematic uncertainties largely cancel, is also determined. The branching fraction of the inclusive B to psi(2S) X decay is extracted from the ratio of the non-prompt cross sections to be: BR(B to psi(2S) X) = (3.08 +/- 0.12(stat.+syst.) +/- 0.13(theor.) +/- 0.42(BR[PDG])) 10-̂3.
Book Synopsis Relative Modification of Prompt $ {\psi\mathrm{(2S)}} $ and $\mathrm{J}/\psi $ Yields from Pp to PbPb Collisions at ${\sqrt{s_{\mathrm{NN}}}} by :
Download or read book Relative Modification of Prompt $ {\psi\mathrm{(2S)}} $ and $\mathrm{J}/\psi $ Yields from Pp to PbPb Collisions at ${\sqrt{s_{\mathrm{NN}}}} written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center of mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 inverse picobarns and 464 inverse microbarns, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N[psi(2S)]/N[J/psi])[PbPb]/ (N[psi(2S)]/N[J/psi])[pp], is determined as a function of PbPb collision centrality and charmonium transverse momentum pt, in two kinematic intervals: abs(y)
Book Synopsis THEORETICAL ISSUES IN J/PSI SUPPRESSION. by : D. KHARZEEV
Download or read book THEORETICAL ISSUES IN J/PSI SUPPRESSION. written by D. KHARZEEV and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two decades ago Matsui and Satz suggested that Debye screening in the quark-gluon plasma would result in J/{psi} suppression in heavy ion collisions. Much has happened in the subsequent years, and the picture of quark-gluon plasma at present is rapidly evolving - what does it imply for the J/{psi} suppression? What are the recent RHIC and SPS results trying to tell us? What else has to be done? This talk is an attempt to address these questions.
Book Synopsis Psi ' and J/ Psi Suppression in High-energy Nucleon-nucleus and Nucleus-nucleus Collisions by :
Download or read book Psi ' and J/ Psi Suppression in High-energy Nucleon-nucleus and Nucleus-nucleus Collisions written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The observed features of [psi]' to J/[psi] suppression in pA and nucleus-nucleus collisions can be explained in terms of a two-component absorption model. For the hard component of the absorption due to the interaction of the produced c{bar c} systems with baryons at high relative energies, the absorption cross sections are insensitive to the radii of the c{bar c} systems, as described by the Additive Quark Model. For the soft component due to the low energy c{bar c} interactions with soft particles produced by other baryon-baryon collisions, the absorption cross sections are greater for [psi]' than for J/[psi], because the breakup threshold for [psi]' is much smaller than for [psi].
Book Synopsis Measurement of Prompt $\psi(2S) \to J/\psi$ Yield Ratios in Pb-Pb and $p-p$ Collisions at $\sqrt {s_{NN}} by :
Download or read book Measurement of Prompt $\psi(2S) \to J/\psi$ Yield Ratios in Pb-Pb and $p-p$ Collisions at $\sqrt {s_{NN}} written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ratio between the prompt [psi](2S) and J/[psi] yields, reconstructed via their decays into [mu]+[mu]-, is measured in Pb-Pb and p-p collisions at √sNN=2.76 TeV. Likewise, the analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150 [mu]b-1 and 5.4 pb-1, respectively. The double ratio of measured yields (N[psi](2S)/NJ/[psi])Pb-Pb/(N[psi](2S)/NJ/[psi])p-p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity,
Download or read book Der Armen Vater written by and published by . This book was released on 1848 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Prompt $J/\psi$ Pair Production in Pp Collisions at $ \sqrt{s} $ by :
Download or read book Measurement of Prompt $J/\psi$ Pair Production in Pp Collisions at $ \sqrt{s} $ written by and published by . This book was released on 2014 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Production of prompt J/[psi] meson pairs in proton-proton collisions at √s = 7 TeV is measured with the CMS experiment at the LHC in a data sample corresponding to an integrated luminosity of about 4.7 fb-1. The two J/[psi] mesons are fully reconstructed via their decays into [mu] + [mu] - pairs. This observation provides for the first time access to the high-transverse-momentum region of J/[psi] pair production where model predictions are not yet established. The total and differential cross sections are measured in a phase space defined by the individual J/[psi] transverse momentum (p T J/[psi] ) and rapidity (
Book Synopsis Measurement of the Differential Cross-Sections of Inclusive, Prompt And Non-Prompt $J/\psi$ Production in Proton-Proton Collisions at $\sqrt{s} by :
Download or read book Measurement of the Differential Cross-Sections of Inclusive, Prompt And Non-Prompt $J/\psi$ Production in Proton-Proton Collisions at $\sqrt{s} written by and published by . This book was released on 2013 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis J/ψ [J-psi] Plus Prompt Associated Production in Two-photon Collisions at Next-to-leading Order by :
Download or read book J/ψ [J-psi] Plus Prompt Associated Production in Two-photon Collisions at Next-to-leading Order written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis J/psi Suppression in Heavy Ion Collisions - Interplay of Hard and Soft QCD Processes by : Christian Spieles
Download or read book J/psi Suppression in Heavy Ion Collisions - Interplay of Hard and Soft QCD Processes written by Christian Spieles and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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