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Book Hyperon Production in Proton nucleus Collisions at a Center of mass Energy of sNN

Download or read book Hyperon Production in Proton nucleus Collisions at a Center of mass Energy of sNN written by Michaela Agari and published by . This book was released on 2006 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hyperon Production in Proton Nucleus Collisions at 42 GeV Center of Mass Energy

Download or read book Hyperon Production in Proton Nucleus Collisions at 42 GeV Center of Mass Energy written by Markward Britsch and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hyperon Production in Proton Nucleus Collisions at 42 GeV Center of Mass Energy

Download or read book Hyperon Production in Proton Nucleus Collisions at 42 GeV Center of Mass Energy written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this thesis is a measurement of hyperon production ratios which is of special interest as a reference on Quark Gluon Plasma search. The data used in this analysis have been taken with a minimum bias trigger at the fixed target experiment HERA-B, which uses the 920 GeV proton beam of the HERA storage ring at DESY. $Lambda$, $Xi$ and $Omega$ hyperons produced in collisions using carbon and tungsten wires as targets were reconstructed. Hyperon ratios are presented for the rapidity range $-1.5

Book Strangeness Production in High Energy Proton nucleus Collision

Download or read book Strangeness Production in High Energy Proton nucleus Collision written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results on strange particles produced by high energy protons on nuclear targets are reviewed. Topics included are inclusive cross- sections, A-dependence, particle ratios and production polarization of hyperons. 49 refs., 41 figs., 1 tab.

Book Measurement of Inclusive lambda Particle Antilambda Particle Hyperon Production at Center of mass Energy 62 GeV

Download or read book Measurement of Inclusive lambda Particle Antilambda Particle Hyperon Production at Center of mass Energy 62 GeV written by James Edwin O'Connor and published by . This book was released on 1982 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of the Transverse Polarization of and u00AF Hyperons Produced in Proton proton Collisions at S

Download or read book Measurement of the Transverse Polarization of and u00AF Hyperons Produced in Proton proton Collisions at S written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We measure the transverse polarization of ? and ???????? hyperons produced in proton-proton collisions at a center-of mass energy of 7 TeV is measured. The analysis uses 760 ?b−1 of minimum bias data collected by the ATLAS detector at the LHC in the year 2010. The measured transverse polarization averaged over Feynman xF from 5 × 10−5 to 0.01 and transverse momentum pT from 0.8 to 15 GeV is −0.010 ± 0.005(stat) ± 0.004(syst) for ? and 0.002 ± 0.006(stat) ± 0.004(syst) for ???????? . It is also measured as a function of xF and pT, but we observed no significant dependence on these variables. Prior to this measurement, the polarization was measured at fixed-target experiments with center-of-mass energies up to about 40 GeV. The ATLAS results are compatible with the extrapolation of a fit from previous measurements to the xF range covered by this measurement.

Book Masses and Decay Processes of Charged Hyperons

Download or read book Masses and Decay Processes of Charged Hyperons written by Peter Cobb Giles and published by . This book was released on 1958 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hyperon Production in E e annihilation at 10 GeV Center of Mass Energy

Download or read book Hyperon Production in E e annihilation at 10 GeV Center of Mass Energy written by ARGUS Collaboration and published by . This book was released on 1987 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Longitudinal Spin Transfer to Lambda and Anti lambda Hyperons Produced in Polarized Proton proton Collisions at Center of Mass Energy

Download or read book Longitudinal Spin Transfer to Lambda and Anti lambda Hyperons Produced in Polarized Proton proton Collisions at Center of Mass Energy written by Ramon Cendejas and published by . This book was released on 2012 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies on the spin structure of the proton have been an active area of research; after the EMC experiment and subsequent experiments found that only about 30% of the total proton spin is carried by quark spins. The Relativistic Heavy Ion Collider (RHIC) is the world's first and only polarized proton collider. The Solenoidal Tracker At RHIC (STAR) has full azimuthal acceptance and is ideally suited to advance studies of the proton spin. The longitudinal spin transfer, DLL, of & lambda; and anti- & lambda; hyperons in longitudinally polarized proton-proton collisions is sensitive to quark and anti-quark polarization in the polarized proton; as well as to polarized fragmentation; and has been proposed as a possible probe of (anti- )strange quark polarization. The STAR collaboration has previously reported an initial proof-of-concept measurement of DLL of & lambda; and anti- & lambda; hyperons from a data sample obtained at sqr(s)=200 GeV in 2005. The data correspond to an integrated luminosity of 2 pb- with 50% beam polarization. Considerably larger data samples corresponding to 6.5 pb- and 25 pb- with beam polarizations of 57% at sqr(s)=200 GeV were obtained in 2006 and 2009 using an upgraded instrument. Improvements were made on the analysis procedure to reduce background contribution to the & lambda; + anti- & lambda; measurements. These new measurements of DLL form the main topic of this dissertation. The sample of hyperons residing within a jet that triggered the experiment are classified as near-side hyperons, and are analyzed separately from an away-side sample that has similar precision. In addition to DLL, the double longitudinal spin asymmetry, ALL, for the production of & lambda; and anti- & lambda; hyperons has been extracted. The dependences of DLL on pseudo-rapidity, pT, and the fragmentation ratio, z, are studied. The stated DLL from & lambda; and anti- & lambda; each disfavor one of the published model predictions for DLL for a combined & lambda; and anti- & lambda; sample, and are consistent with other predictions as well as with the preceding data. The disfavored model prediction is based on the assumption that up, down, and strange (anti- )quark spins contribute equally to polarized fragmentation into & lambda; + anti- & lambda; hyperons. Future data with improved statistical precision, including data at sqr(s)=500 GeV, are needed to discriminate between the other models.

Book Inclusive Direct Photon Production in the Central and Forward Rapidity Regions in Proton Anti proton Collisions at a Center of mass Energy of 1800 GeV

Download or read book Inclusive Direct Photon Production in the Central and Forward Rapidity Regions in Proton Anti proton Collisions at a Center of mass Energy of 1800 GeV written by and published by . This book was released on 1997 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Search for Long lived Strongly produced Heavy Particles in Proton antiproton Collisions at Center of mass Energy 630 GeV

Download or read book A Search for Long lived Strongly produced Heavy Particles in Proton antiproton Collisions at Center of mass Energy 630 GeV written by Ira Joseph Kroll and published by . This book was released on 1989 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: