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A Study of the Average Multiplicity and Multiplicity Distributions in Hadron-Nucleus Collisions at High Energies

Description: In a simple counter experiment requiring about 40 hours of data taking time we propose to study the detailed shape of the multiplicity distribution for larger values of n and the average charged particle multiplicity in hadron-nucleus collisions at 100 and 200 Gev. The results of the experiment should be a valuable input for ccmparison with theoretical models, in particular they should provide a sensitive test ot whether multipartlcle production in hadron-nucleon collisions proceeds through a one or two step process.
Date: June 1, 1972
Creator: Busza, W.; Friedman, J.I.; Kendall, H.W.; Rosenson, L. & /MIT
Partner: UNT Libraries Government Documents Department

2 x 2 TeV mu(superscript +) mu (superscript) collider

Description: The scenarios for high-luminosity 2 x 2 TeV and 250 x 250 GeV {mu}{sup +}{mu}{sup -} colliders are presented. Having a high physics potential, such a machine has specific physics and technical advantages and disadvantages when compared with an e{sup +}e{sup -} collider. Parameters for the candidate designs and the basic components - proton source, pion production and decay channel, cooling, acceleration and collider storage ring - are considered. Attention is paid to the areas mostly affecting the collider performance: targetry, energy spread, superconducting magnet survival, detector backgrounds, polarization, environmental issues. 13 refs., 9 figs., 4 tabs.
Date: October 1, 1996
Creator: Mokhov, N.V. & Noble, R.J.
Partner: UNT Libraries Government Documents Department

Partonic EoS in High-Energy Nuclear Collisions at RHIC

Description: The authors discuss the recent results on equation of state for partonic matter created at RHIC. Issues of partonic collectivity for multi-strange hadrons and J/{psi} from Au + Au collisions at {radical}Ss{sub NN} = 200 GeV are the focus of this paper.
Date: January 1, 2006
Creator: Xu, Nu
Partner: UNT Libraries Government Documents Department

A Study of Two Particle Correlations in Inelastic Pion - Nucleus Interactions at 200-GeV/c

Description: Pseudorapidity and azimuthal two-particle correlations have been investigated in pion-nucleus interactions at 200 Gev/c. The considerable attention has been devoted to the exclusion of kinematical and pseudo-correlations. The qualitative comparison of experimental results with some theoretical models has been performed.
Date: January 1, 1977
Creator: Anzon, Z.V.; Gaitinov, A.Sh.; Eremenko, L.E.; Kanygina, E.K.; Takibaev, Zh.S.; Chasnikov, I.Ya. et al.
Partner: UNT Libraries Government Documents Department

200-GeV ISA with room temperature magnets

Description: A conceptual design study of 200-GeV proton intersecting storage accclerators with room temperature magnets is presented. The key to this study was thc desire to keep the electric power consumptiom to an acceptable level (40 MW). The design has been optimized by choosing small-gap (4 cm) aluminum coil dipoles operating at about 15 kG. The luminosity of this machine is limited to about 10/sup 32/ cm-/sup -2/ sec/sup -1/ by transverse space-charg e effects. An order of magnitude higher luminositics can be obtained by adding a booster of modest cost. A novel vacuum system using distributed Ti-sublimation pumps results in considerable savings. A cost comparison with a high-luminosity superconducting machine is given. (auth)
Date: February 11, 1974
Creator: Willis, W.J.; Danby, G.T.; Hahn, H.; Halama, H.J.; Maschke, A.W.; Month, M. et al.
Partner: UNT Libraries Government Documents Department

Physics with the Main Injector

Description: The Main Injector is a new rapid cycling accelerator at Fermilab which is a source of protons to be used in antiproton production to enhance the luminosity of the Tevatron Collider and to provide extracted beams for use in a range of fixed target experiments. We discuss the current status of the accelerator and the physics which it enables. The physics ranges broadly over the standard model and beyond, from the search for neutrino mass to collider physics at the highest energy available today.
Date: April 23, 1999
Creator: Montgomery, Hugh E.
Partner: UNT Libraries Government Documents Department


Description: There are now several proposals that have been put forward from around the world for an e{sup +}e{sup {minus}} linear collider with an initial center of mass energy of 500 GeV. In this paper, the authors discuss why a project of this type deserves priority as the next, major initiative in high energy physics.
Date: June 30, 2000
Partner: UNT Libraries Government Documents Department

CP violation and flavor-changing-currents at {mu}{sup +}{mu}{sup minus} colliders

Description: Production and decay (CP) asymmetries at {mu}{sup +}{mu}{sup {minus}} collider, in extensions of the Standard Model (SM) are reported. Production asymmetries appear to be very promising for a large range of parameters, decays are less effective. Importance of flavor- changing scalar currents involving the top are emphasized. At lepton colliders, the top-anticharm final state is uniquely suited for such searches. At a muon collider there is the novel possibility of tree level {mu}{sup +}{mu}{sup {minus}} {r_arrow} t{ovr c}. This talk is based on works done in collaboration with David Atwood and Laura Reina. 10 refs., 8 figs.
Date: April 2, 1996
Creator: Soni, A.
Partner: UNT Libraries Government Documents Department

Muon collider design

Description: The possibility of muon colliders was introduced by Skrinsky et al., Neuffer, and others. More recently, several workshops and collaboration meetings have greatly increased the level of discussion. In this paper we present scenarios for 4 TeV and 0.5 TeV colliders based on an optimally designed proton source, and for a lower luminosity 0.5 TeV demonstration based on an upgraded version of the AGS. It is assumed that a demonstration version based on upgrades of the FERMILAB machines would also be possible. 53 refs., 25 figs., 8 tabs.
Date: March 1, 1996
Creator: Palmer, R.; Sessler, A. & Skrinsky, A.
Partner: UNT Libraries Government Documents Department

The underlying event in jet and minimum bias events at the Tevatron

Description: We describe a study of the underlying event in jet and minimum bias events using data from the CDF detector. The underlying event contribution to the jet energy has been calculated in jet events and compared to the results of two Monte Carlo programs: Herwig and Pythia. The analysis has been carried out at two different center of mass energies: {radical}s = 1800 and 630 GeV. For most observables, good agreement is obtained with at least one of the Monte Carlo programs. Neither program describes all features of the data.
Date: December 7, 2001
Creator: Tano, V.
Partner: UNT Libraries Government Documents Department

Inclusive jet cross sections in pbar p collisions at 630 and 1800 GeV

Description: We have made a precise measurement of the inclusive jet cross section at {radical}s=1800 GeV. The result is based on an integrated luminosity of 92 pb<sup>-1</sup> collected at the Fermilab Tevatron {anti p}p Collider with the D0 detector. The measurement is reported as a function of jet transverse energy (60 GeV {<=} E<sub>T</sub> {<=} 500 GeV ), and in the pseudo- rapidity intervals |{eta}| {<=} 0.5 and 0.1 {<=} |{eta}| {<=} 0.7. A preliminary measurement of the pseudorapidity dependence of inclusive jet production ( |{eta}| {<=} 1.5 ) is also discussed. The results are in good agreement with predictions from next-to-leading order (NLO) quantum chromodynamics (QCD). D0 has also determined the ratio of jet cross sections at {radical}s=630 GeV and {radical}s=1800 GeV ( |{eta}| {<=} 0.5). This preliminary measurement differs from NLO QCD predictions.
Date: September 8, 1999
Creator: Elvira, V.Daniel
Partner: UNT Libraries Government Documents Department

Observation of muonless neutrino-induced inelastic interactions

Description: The observation of inelastic interactions induced by high energy neutrinos and antineutrinos in which no muon is observed in the final state is reported. A possible, but by no means unique, interpretation of this effect is the existence of a neutral weak current. (auth)
Date: January 1, 1973
Creator: Benvenuti, A.; Cheng, D.C.; Cline, D.; Ford, W.T.; Imlay, R.; Ling, T.Y. et al.
Partner: UNT Libraries Government Documents Department

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 as well as {pi}{sup o} production and the correlation between {pi}{sup o} and charged particles.
Date: October 27, 1972
Creator: Engelmann, R.; Lee-Franzini, J.; Moore, C.; Pratap, M. & /SUNY
Partner: UNT Libraries Government Documents Department