Download or read book Measurements of Lambda bar Lambda and Kappa superior 0 inferior S from Pb Pb Collisions at 158 GeV Per Nucleon in a Large Acceptance Experiment written by Lee Stuart Barnby and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Lambda Lambda bar and K short from Pb Pb Collisions at 158 GeV Per Nucleon in a Large Acceptance Experiment written by Lee S. Barnby and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main reason for studying relativistic heavy-ion collisions is to discover the phase transition from nuclear matter to the Quark-Gluon Plasma. Such a transition is predicted to occur under conditions of high temperature and density. The predicted state features deconfined quarks and gluons as the relevant degrees of freedom instead of colour-singlet hadrons. These new degrees of freedom should lead to an enhanced production of strange quarks which has directly observable consequences on the composition of the final state hadrons detected in such a collision. The NA49 experiment is able to measure hadronic production in central Pb+Pb collisions. It uses a Pb beam, of energy 158 GeV per nucleon, from the CERN SPS with a fixed Pb target. The experiment features four large tracking detectors which can measure the trajectories of charged particles. In this thesis the method of reconstructing neutral strange particles, Lambda, Lambda-bar and K-short from their charged decay products is described. The procedure for correcting the raw yields for losses due to the limited experimental acceptance and efficiency in reconstruction is explained. An estimate of some systematic errors is made. The resulting rapidity distributions, which span either side of mid-rapidity are peaked (with the possible exception of Lambda) and the transverse momentum spectra fit the Hagedorn distribution. The inverse slope parameters, T_Lambda = 274? 5 MeV, T_Lambda-bar = 279? 10 MeV and T_K = 238? 5 MeV are consistent with the picture of transverse flow observed in these collisions. These results are compared with other measurements.
Download or read book Spectra of Lambda L ambda and K superior O inferior S from Pb Pb Collisions at 158 GeV Per Nucleon written by Timothy Anderton Yates and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production in Pb Pb Collisions at 158 GeV c written by and published by . This book was released on 1997 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the NA49 main TPC, the central production of (? + {bar?}) hyperons has been measured in CERN SPS Pb on Pb collisions at 158 GeV/c. The preliminary ({Xi} + {bar {Xi}})/ (? + {bar {Lambda}}) ratio, studied at 2.0
Download or read book Lambda and Anti Lambda Production in Central Pb Pb Collisions at 40 80 and 158 A GeV written by Tome Antičić and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particle Physics written by Necia Grant Cooper and published by CUP Archive. This book was released on 1988-04-29 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the emergence of a profoundly new understanding of the fundamental forces of Nature.
Download or read book Xi and Xi bar Production in 158 GeV nucleon Pb Pb Collisions written by Harald Appelshäuser and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detailed Analysis of Two Particle Correlations in Central Pb Au Collisions at 158 GeV Per Nucleon written by Dariusz Antończyk and published by . This book was released on 2006 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Sigma Lambda b 0 written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the first observation of the baryon decay?{sub b}° →?{sub c}?− followed by?{sub c}+ → pK−?+ in 106 pb−1 p{bar p} collisions at √s = 1.96 TeV in the CDF experiment. IN order to reduce systematic error, the measured rate for?{sub b}° decay is normalized to the kinematically similar meson decay {bar B}° → D+?− followed by D+ →?+K−?+. They report the ratio of production cross sections times the ratio of branching fractions for the momentum region integrated above p{sub T}> 6 GeV/c and pseudorapidity range.
Download or read book Particle Correlations in Fixed Target Pb Pb Collisions at 158 GeV c Per Nucleon written by Hanspeter Naef and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'originalité de WA98 vient de sa grande variété de signaux mesurés; une étude sur leurs corrélations est également présentées.
Download or read book The Parton to Hadron Phase Transition Observed in Pb Pb Collisions at 158 GeV Per Nucleon written by and published by . This book was released on 1999 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flavor Fluctuations in Central Pb pb Collisions at 158 GeV Nucleon written by Christof Roland and published by . This book was released on 1999 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NA49 Results on Single Particle and Correlation Measurements in Central PB PB Collisions written by and published by . This book was released on 1998 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-particle spectra and two-particle correlation functions measured by the NA49 collaboration in central Pb+Pb collisions at 158 GeV/nucleon are presented. These measurements are used to study the kinetic and chemical freeze-out conditions in heavy ion collisions. We conclude that large baryon stopping, high baryon density and strong transverse radial flow are achieved in central Pb+Pb collisions at the SPS.
Download or read book Transverse Flow from MT Spectra in Pb Pb Collisions at 158 GeV c Per Nucleon written by Juan Miguel Rubio and published by . This book was released on 1998 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans l'expérience WA98 du CERN, nous avons construit et utilisé un traceur de particules pour mesurer les caractéristiques spatio-temporelles du produit des collisions de ions lourds.
Download or read book Inclusive lambda Baryon Spectra in Au Au Collisions at Sqrt S NN written by Dillon Roach and published by . This book was released on 2015 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Chemistry in Archaeology written by A. M. Pollard and published by Cambridge University Press. This book was released on 2007-01-18 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual introduces the basic concepts of chemistry behind scientific analytical techniques and reviews their application to archaeology. It is an essential tool for students of archaeology that explains key terminology and outlines the procedures to be followed in order to produce good data.
Download or read book K0 s and Lambda0 Production Studies in P Anti p Collisions at S 1 2 written by and published by . This book was released on 2005 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the production of K{sub s}° and [Lambda]° in inelastic p{bar p} collisions at √s = 1800 and 630 GeV using data collected by the CDF experiment at the Fermilab Tevatron. Analyses of K{sub s}° and [Lambda]° multiplicity and transverse momentum distributions, as well as of the dependencies of the average number and (p{sub T}) of K{sub s}° and [Lambda]° on charged particle multiplicity are reported. Systematic comparisons are performed for the full sample of inelastic collisions, and for the low and high momentum transfer subsamples, at the two energies. The p{sub T} distributions extend above 8 GeV/c, showing a (p{sub T}) higher than previous measurements. The dependence of the mean K{sub s}°([Lambda]°) p{sub T} on the charged particle multiplicity for the three samples shows a behavior analogous to that of charged primary tracks.
