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Measurement Of Nuclear Effects In The Production Of J J Psi Mesons With The Hera B Detector
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Book Synopsis Measurement of Nuclear Effects in the Production of J, _ps63 [J, Psi] Mesons with the HERA-B Detector by : Ulrich Husemann
Download or read book Measurement of Nuclear Effects in the Production of J, _ps63 [J, Psi] Mesons with the HERA-B Detector written by Ulrich Husemann and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Nuclear Effects in the Production of J/_y63 [J-psi] Mesons with the HERA-B Detector by : Ulrich Husemann
Download or read book Measurement of Nuclear Effects in the Production of J/_y63 [J-psi] Mesons with the HERA-B Detector written by Ulrich Husemann and published by . This book was released on 2005 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Nuclear Effects in the Production of J/ψ [J-psi] Mesons with the HERA-B Detector by : Ulrich Husemann
Download or read book Measurement of Nuclear Effects in the Production of J/ψ [J-psi] Mesons with the HERA-B Detector written by Ulrich Husemann and published by . This book was released on 2005 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Nuclear Effects in the Production of J/_y63 [J-psi] Mesons with the HERA-B Detector by : Ulrich Husemann
Download or read book Measurement of Nuclear Effects in the Production of J/_y63 [J-psi] Mesons with the HERA-B Detector written by Ulrich Husemann and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book J/[psi] in PA written by Maarten Bruinsma and published by . This book was released on 2002 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of the Polarization of J/Psi Mesons Produced in High-energy Proton-antiproton Collisions by : Robert J. Cropp
Download or read book A Measurement of the Polarization of J/Psi Mesons Produced in High-energy Proton-antiproton Collisions written by Robert J. Cropp and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents an analysis of the polarization of ' J'/ y mesons produced in 'pp¢' collisions at a centre-of-mass energy of 1.8 TeV. The collisions were produced by the Fermilab Tevatron collider, the world's highest energy particle accelerator. The data were recorded by the Collider Detector at Fermilab during Run 1 of the Tevatron in 1992-1995. The 'J'/ y meson consists of a charm quark and its antiquark, and is the best-known type of quarkonium, the bound state of a heavy quark-antiquark pair. The measurement of the production polarization of 'J'/ y mesons and other quarkonia provides a test of quarkonium production models. The study of quarkonium production is important for understanding the strong nuclear force between quarks. The strong force is one of the four known fundamental forces, being responsible for binding quarks into hadrons and holding atomic nuclei together. The polarization of centrally produced 'J'/ y mesons has been measured over the transverse momentum range 4-20 GeV/'c', using an analysis of the angular distribution of their decays to [mu]+[mu]-. Decay length measurements made by CDF's silicon vertex detector allowed the promptly produced ' J'/ y mesons to be separated from those produced in ' B'-hadron decays. The prompt and 'B'-decay polarization parameters, Ã'P' and Ã' B', have both been measured. The measured value of Ã' P' is positive at intermediate 'PT', but is consistent with zero above 12 GeV/'c', in apparent disagreement with predictions of the NRQCD factorization formalism.
Book Synopsis J/[psi] Production and Nuclear Effects in P-Pb Collisions at $ \sqrt{{{{\mathrm{s}}_{\mathrm{NN}}}}} $ by :
Download or read book J/[psi] Production and Nuclear Effects in P-Pb Collisions at $ \sqrt{{{{\mathrm{s}}_{\mathrm{NN}}}}} $ written by and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We studied inclusive J/[psi] production with the ALICE detector in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement is performed in the center of mass rapidity domains 2.03
Book Synopsis Measurement of J/psi Meson and B-hadron Production Cross Section at Sqrt(s) by :
Download or read book Measurement of J/psi Meson and B-hadron Production Cross Section at Sqrt(s) written by and published by . This book was released on 2006 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new measurement of the inclusive and differential production cross sections of J/[psi] mesons and b-hadrons in proton-antiproton collisions at √s = 1960 GeV is presented. The data correspond to an integrated luminosity of 39.7 pb−1 collected by the CDF Run II detector. The integrated cross section for inclusive J/[psi] production for all transverse momenta from 0 to 20 GeV/c in the rapidity range
Book Synopsis A Measurement of the Nuclear Dependence of J/[psi] and [psi Prime] Production by : William Malcolm Lee
Download or read book A Measurement of the Nuclear Dependence of J/[psi] and [psi Prime] Production written by William Malcolm Lee and published by . This book was released on 1999 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book African Rainforest written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Measurement of J/Psi and Psi(2S) Production in Proton-nucleus Interactions Using the HERA-B Experiment by :
Download or read book Measurement of J/Psi and Psi(2S) Production in Proton-nucleus Interactions Using the HERA-B Experiment written by and published by . This book was released on 2004 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis J/psi Meson Production in Association with a W± Boson by : David E. Bertsche
Download or read book J/psi Meson Production in Association with a W± Boson written by David E. Bertsche and published by . This book was released on 2016 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Threshold Photo-production of J/psi Mesons by :
Download or read book Threshold Photo-production of J/psi Mesons written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of higher energies at Jefferson Lab, the study of charmonium becomes possible. The threshold production of J/[Psi] meson photo-production on hydrogen is [approx] 8.2 GeV, thus with a 8+ GeV beam, the elementary [gamma]-J/[Psi] cross section can be measured. Threshold charm production on a nucleus can give information on the J/[Psi]-N interaction. The standard method to extract this cross section has been to measure the nuclear dependence of J/[Psi] production. The majority of these A-dependent J/[Psi] production experiments have been measured at high energy, while the only near-threshold experiment was performed using 20 GeV photons. This 20 GeV SLAC experiment measured [sigma][sub J/[Psi]N] = 3.6 [+-] 0.8 [+-] 0.5 mb[1]; whereas theory predicts this cross section to be higher, about 7 mb [2]. It is unclear whether the SLAC determination of [sigma][sub J/[Psi]N] corresponds to the physical [sigma][sub J/[Psi]N], due to the fact that at these energies the J/[Psi] may still be formed outside the nucleus [3] [4]. A measurement of the nuclear dependence of threshold J/[Psi] photo-production may resolve this issue.
Book Synopsis Measurement of J/y [J-psi] and Y(2S) [Psi-2S] Production in Proton-nucleus Interactions Using the HERA-B Experiment by : Ilija Vukotić
Download or read book Measurement of J/y [J-psi] and Y(2S) [Psi-2S] Production in Proton-nucleus Interactions Using the HERA-B Experiment written by Ilija Vukotić and published by . This book was released on 2005 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Prompt Double J/psi Production Cross Section in Pp Collisions at Sqrt(s) by : Andrew David York
Download or read book Measurement of the Prompt Double J/psi Production Cross Section in Pp Collisions at Sqrt(s) written by Andrew David York and published by . This book was released on 2013 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The simultaneous production of two J/psi mesons has been significantly observed in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector. The two J/psi mesons are fully reconstructed in their decay to muons. The signal yield is extracted with an extended maximum likelihood fit based on four event variables. A method was developed to correct for detector acceptances and efficiencies based on the measured momenta of the J/psi and their decay muons to maintain the least model dependence possible. The measurement is performed in an acceptance region defined by the individual J/psi transverse momentum and rapidity. From the measured signal yield of 446 events corresponding to an integrated luminosity of 4:7 inverse femtobarn. The total cross section is found to be 1:49 nanobarn, with 0:07 statistical and 0:13 nb systematic error, and unpolarizaed production was assumed. Most predictions for particle production at the LHC assume dominance of single parton interaction for proton-proton collisions, which can be tested with the final state measured in this analysis. The differential cross section is measured in bins of the double J/psi invariant mass, the double J/psi transverse momentum, and the absolute difference in rapidity of the two J/psi. The reconstruction of the four charged muon trajectories heavily relies on the Pixel subdetector located close to the beampipe. Systematic studies with cosmic muons and tracks from collision events are presented. The development of the Pixel RawToDigi package, data quality monitoring packages, commissioning studies of Pixel data and tracks in first collisions, and realistic simulations of decay signals in the pixel subdetector were all performed as a part of this dissertation work.
Book Synopsis Measurement of J/psi Production in Continuum Ee− Annihilations Near Sqrt(s) by :
Download or read book Measurement of J/psi Production in Continuum Ee− Annihilations Near Sqrt(s) written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of J/[psi] mesons in continuum ee− annihilations has been studied with the BABAR detector at energies near the [Upsilon](4S) resonance, approximately 10.6 GeV. The mesons are distinguished from J/[psi] production in B decays through their center-of-mass momentum and energy. We measure the cross section ee− 2!J/[psi] X to be 2.52 ± 0.21 ± 0.21 pb; for momentum above 2 GeV/c, it is 1.87 ± 0.10 ± 0.15 pb. We set a 90% confidence level upper limit on the branching fraction for direct [Upsilon](4S) 2!J/[psi] X decays at 4.3 x 10−4.
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