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AGS broad band neutrino beam

Description: We describe the broad band neutrino beam in the north area of the AGS and discuss the calculation of the neutrino flux. The horns were initially designed by Robert Palmer and this beam has been used for almost all neutrino running at the AGS. All of the wide band running for E734 has been done in the beam we discuss. E734 is an experiment designed to measure elastic scattering of neutrinos and antineutrinos on electrons and protons. The detector is sufficiently large (approx. =170 tons) that en… more
Date: February 27, 1985
Creator: White, D. Hywel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Muon Production in Relativistic Cosmic-Ray Interactions

Description: Cosmic-rays with energies up to 3x1020 eV have been observed. The nuclear composition of these cosmic rays is unknown but if the incident nuclei are protons then the corresponding center of mass energy is sqrt snn = 700 TeV. High energy muons can be used to probe the composition of these incident nuclei. The energy spectra of high-energy (> 1 TeV) cosmic ray induced muons have been measured with deep underground or under-ice detectors. These muons come from pion and kaon decays and from char… more
Date: July 27, 2009
Creator: Klein, Spencer
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Gamma-Ray Emission From Crushed Clouds in Supernova Remnants

Description: It is shown that the radio and gamma-ray emission observed from newly-found 'GeV-bright' supernova remnants (SNRs) can be explained by a model, in which a shocked cloud and shock-accelerated cosmic rays (CRs) frozen in it are simultaneously compressed by the supernova blastwave as a result of formation of a radiative cloud shock. Simple reacceleration of pre-existing CRs is generally sufficient to power the observed gamma-ray emission through the decays of {pi}{sup 0}-mesons produced in hadroni… more
Date: October 27, 2010
Creator: Uchiyama, Yasunobu; Blandford, Roger D.; Funk, Stefan; Tajima, Hiroyasu & Tanaka, Takaaki
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Proposal to Study Multibody Final States in pp Collisions at 200 GeV/c Using the NAL 15-Foot Bubble Chamber

Description: We propose to expose the NAL 15-foot hydrogen bubble chamber to 200 GeV protons. We intend to take 20,000 pictures. Multiparticle final states will be studied by measuring the momenta of all charged final state particles with the exception of a few very fast tracks where at least the charge and the emission angle of the particle will be determined. Comparison with various models for high energy multiparticle production will be made. Additionally, K{sup o} and {Lambda} production will be studied… more
Date: October 27, 1972
Creator: Engelmann, R.; Lee-Franzini, J.; Moore, C.; Pratap, M. & /SUNY
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Future experiments with neutrino superbeams, beta-beams, and neutrino factories

Description: This report describes the goals of the next generations of accelerator-based neutrino experiments, and the various strategies that are being considered to achieve those goals. Because these next steps in the field are significantly different from the current or previous steps, novel techniques must be considered for both the detectors and the neutrino beams themselves. We consider not only conventional neutrino beams created by decays of pions, but also those which could be made by decays of be… more
Date: October 27, 2003
Creator: Harris, Deborah A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Jet calorimetric trigger

Description: The problem in triggering on jets in hadron colliders is that the largest background in the trigger is also a jet. Therefore, we must strive to trigger as incisively as possible. Since the basic physics resides in the transverse momentum, Pt, of the jet, this means to trigger with as sharp a Pt discriminant as possible. The basic problem is different for electrons or photons, where the backgrounds are typically jets. For heavy quarks, like b, the backgrounds are mismeasured secondary vertices. … more
Date: September 27, 1999
Creator: Green, Dan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear Reactions Induced by Pions and Protons

Description: Effects due to elementary particle-like collisions within nuclear matter have been observed in several nuclear reactions caused by pions and protons. Simple nuclear reactions of the form ZA(a,an)Z/sup A-1/ and Z/sup A/(a,ap)(Z-1)/ sup A-1/ have excitation functions that are sensitive to changes in the elementary-particle cross sections. The excitation function for the reaction C/ sup 12/( pi /sup -/, pi /sup -/n)C/sup 11/ is measure d from 53 to 1610 Mev by bombarding targets of plastic scintil… more
Date: November 27, 1962
Creator: Reeder, P. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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High Energy Elastic Scattering of $Pi$$Sup 1$, P,/Anti P/ and K$Sup 1$ by Protons (and Regge Pole Predictions)

Description: The counter hodoscope experiments at incident particle momenta of 7-20 Bev/c are summarized. The data are presented, together with the associated Regge pole analyses. The effective radii, opacities, and total cross sections obtained for the interactions are included. A magnetic spectrometer setup used for low four-momentum transfer data is also described, and optical theorem predictions for pi /sup -/-p and p-p are given. (D.C.W.)
Date: June 27, 1963
Creator: Lindenbaum, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SPIN EFFECTS IN LARGE RAPIDITY NEUTRAL PION PRODUCTION AT STAR.

Description: Measurements by the STAR collaboration of neutral pion production at large Feynman x (x{sub F}) in the first polarized proton collisions at {radical}s = 200 GeV were reported previously. During the following two runs additional statistics were acquired with an improved forward calorimeter for the {pi}{sup 0} cross-section and analyzing power measurements. First data from pp collisions at {radical}s = 410 GeV were taken during the RHIC run that ended in June, 2005. The cross section was measured… more
Date: September 27, 2005
Creator: MOROZOV, D.A. (FOR THE STAR COLLABORATION)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of CP-Violating Parameters in Fully Reconstructed B to D(*)+-pi-+ and B to D+-rho-+ Decays

Description: The authors present a preliminary measurement of the CP-violating parameters in fully reconstructed B{sup 0} {yields} D{sup (*){+-}}{pi}{sup {-+}} and B{sup 0} {yields} D{sup {+-}}{rho}{sup {-+}} decays in approximately 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC.
Date: July 27, 2005
Creator: Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Studies of the Strange Hadronic Tau Decay Tau- to K0(S) Pi- Nu-Tau Using the BaBar Detector

Description: A study of the decay {tau}{sup -} {yields} K{sub S}{sup 0}{pi}{sup -} {nu}{sub {tau}} (K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -}) using the BABAR detector is presented. Using 124.4 fb{sup -1} of data we measure {Beta}({tau}{sup -} {yields} {bar K}{sup 0}{pi}{sup -}{nu}{sub {tau}}) = (0.830 {+-} 0.005(stat) {+-} 0.042(syst))%, which is the world's most precise measurement to date of this branching ratio, and is consistent with the current world average. This preliminary result, unlike most… more
Date: January 27, 2006
Creator: Lyon, Andrew J. & /SLAC, /Manchester U.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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QCD and Light-Front Holography

Description: The soft-wall AdS/QCD model, modified by a positive-sign dilaton metric, leads to a remarkable one-parameter description of nonperturbative hadron dynamics. The model predicts a zero-mass pion for zero-mass quarks and a Regge spectrum of linear trajectories with the same slope in the leading orbital angular momentum L of hadrons and the radial quantum number N. Light-Front Holography maps the amplitudes which are functions of the fifth dimension variable z of anti-de Sitter space to a correspon… more
Date: October 27, 2010
Creator: Brodsky, Stanley J. & de Teramond, Guy F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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