Download or read book Measurement of Inclusive Lambda Antilambda Hyperon Polarisation in Proton Nucleus Collisions at 920 GeV Proton Beam Energy written by Marc-André Pleier and published by . This book was released on 2002 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Inclusive L63 L63 Lambda Antilambda Hyperon Polarisation in Proton Nucleus Collisions at 920 GeV Proton Beam Energy written by Marc-André Pleier and published by . This book was released on 2002 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Inclusive Lambda Antilambda Hyperon Polarisation in Proton Nucleus Collisions at 920 GeV Proton Beam Energy written by Marc-André Pleier and published by . This book was released on 2002 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Inclusive Lambda Lambda hyperon Polarisation in Proton Nucleus Collisions at 920 GeV Proton Beam Energy written by Marc-Andre Pleier and published by . This book was released on 2002 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Measurement of Inclusive Lambda K short and Lambda Bar Production and Lambda Polarization from Interactions of 400 GeV c Protons with Hydrogen written by Ronald Allan Grobel and published by . This book was released on 1980 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polarization of L63 Lambda and L63 1hn Lambda 1hn in 920 GeV Fixed target Proton nucleus Collisions written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Download or read book Polarization of and in 920 GeV Fixed target Proton nucleus Collisions written by HERA-B Collaboration and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Inclusive b Jet Production in Proton Proton Collisions written by Patrick L.S. Connor and published by Springer Nature. This book was released on 2019-11-29 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: ^ 74 GeV and |y| 2.4; the b jets must contain a B hadron. The measurement has significant statistics up to p T ∼ O(TeV). Advanced methods of unfolding are performed to extract the signal. It is found that fixed-order calculations with underlying event describe the measurement well.
Download or read book Measurements of Lamba and Anti Lambda Polarization in Longitudinally Polarized Proton Proton Collisions at SQRT S NN written by and published by . This book was released on 2005 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results for the longitudinal polarization of A and hyperons in longitudinally polarized proton-proton collisions at √s = 200 GeV are presented. The [Lambda]({bar [Lambda]}) candidates are reconstructed at mid-rapidity (
Download or read book Longitudinal Spin Transfer in Inclusive Lambda and Lambda Barproduct Ion in Polarized Proton proton Collisions at Sqrt S written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This contribution reports on a proof-of-principle measurement of the longitudinal spin transfer D{sub LL} in inclusive [Lambda] and [Lambda] production in polarized proton-proton collisions at a center of mass energy √s = 200 GeV. The data sample consists of about 3 x 106 minimum bias events collected in the year 2005 by the STAR experiment at RHIC with proton beam polarizations of up to 50%. The [Lambda]({bar [Lambda]}) candidates are reconstructed at mid-rapidity (
Download or read book Longitudinal Spin Transfer to Lambda and Lambda Bar Hyperons in Polarized Proton Proton Collisions at Sqrt S written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The longitudinal spin transfer, D{sub LL}, from high energy polarized protons to [Lambda] and {bar [Lambda]} hypersons has been measured for the first time in proton-proton collisions at √s = 200 GeV with the STAR detector at RHIC. The measurements cover pseudorapidity, [eta], in the range.
Download or read book Measurement of Spin Observables in Inclusive Lambda and Koshort Production with a 200 Gev Polarized Proton Beam written by Alessandro Bravar and published by . This book was released on 1994 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Lambda Polarization in Exclusive and Diffractive Inclusive Final States Produced in Proton proton Diffraction Dissociation at 800 GeV c written by Shuyu Lee and published by . This book was released on 1994 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polarization of L and L in 920 GeV Fixed target Proton nucleus Collisions written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
