Author: Michael Adriann Jonker BotjePublisher:
ISBN:
Category :
Languages : en
Pages : 163
Book Description
Energy Dependence of Proton-proton and Antiproton-proton Scattering at the Cern Intersecting Storage Rings
Author: Michael Adriann Jonker BotjePublisher:
ISBN:
Category :
Languages : en
Pages : 163
Book Description
Energy Dependence of Proton-proton and Antiproton-proton Scattering at the Cern Intersecting Storage Rings
Author: Michiel Adriaan Jonker BotjePublisher:
ISBN:
Category :
Languages : en
Pages : 163
Book Description
Determination of the Angular and Energy Dependence of Hard Constituent Scattering From. Pi. ° Pair Events at the CERN Intersecting Storage Rings
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present data on proton-proton collisions, obtained at the CERN Intersecting Storage Rings, in which two roughly back-to-back .pi.°'s of high transverse momentum (p/sub T/) were produced. The angular distribution of the dipion axis relative to the collision axis is found to be independent of both the effective mass m of the dipion system and the centre-of-mass energy .sqrt.s of the proton-proton collision. The cross-sections dsigma/dm at the two values of .sqrt.s satisfy a scaling law of the form dsigma/dm = G(x)/m/sup n/, where x = m(.pi.°, .pi.°)/.sqrt.s and n = 6.5 +- 0.5. We show from our data that the leading .pi.° carries most of the momentum of the scattered parton. Given this fact, the axis of the dipion system follows closely the direction of the scattered constituents, and we exploit this to determine the angular dependence of the hard-scattering subprocess. We also compare our data with the lowest order QCD predictions using structure functions as determined in deep-inelastic scattering and fragmentation functions from electron-positron annihilation.
Comparison of Antiproton-proton and Proton-proton Collisions at the CERN Intersecting Storage Ring
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A comparative investigation of anti pp and pp collisions at the CERN Intersecting Storage Rings is reported. The study was performed using the cylindrical drift chamber of the Axial Field Spectrometer. Non-relativistic particles were identified through multiple ionization sampling. The inclusive production of pions, kaons, protons and antiprotons in the central region of rapidity (absolute value y
Proton-antiproton Physics at the CERN Intersecting Storage Rings
Author: Leslie CamilleriProton-antiproton Collider Physics
Author: G. AltarelliPublisher: World Scientific
ISBN: 9789971505622
Category : Science
Languages : en
Pages : 420
Book Description
This volume reviews the physics studied at the CERN proton-antiproton collider during its first phase of operation, from the first physics run in 1981 to the last one at the end of 1985.The volume consists of a series of review articles written by physicists who are actively involved with the collider research program. The first article describes the proton-antiproton collider facility itself, including the antiproton source and its principle of operation based on stochastic cooling.The subsequent six articles deal with the various physics subjects studied at the collider. Each article describes in detail the experimental results on a particular subject, and also provides the theoretical framework necessary for their interpretation. Finally the last two articles discuss the physics expectations from the improved collider (the so-called ACOL program, which has just started operation), and also from the next generation of ?supercolliders? which are being considered both in Europe and in the United States America.
Meson and Baryon Production in Proton-antiproton and Proton-proton Interactions at the CERN Intersecting Storage Rings
Author: Ulf Mjörnmark40th Anniversary of the First Proton-Proton Collisions in the CERN Intersecting Storage Rings ( ISR )
Author: Ugo AmaldiPublisher:
ISBN: 9789290833758
Category : Colliders (Nuclear physics)
Languages : en
Pages : 74
Book Description
Measurements of Proton-proton and Proton-antiproton Elastic Scattering at the European Center for Nuclear Research Intersecting Storage Rings
Author: Norman A. AmosObservation of J(3.1) Production in Proton--proton Collisions at the CERN ISR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In an experiment performed at the CERN Intersecting Storage Rings (ISR), 11 e$sup +$e$sup -$ pairs of high invariant mass value (greater than 2.5 GeV/ c$sup 2$) were observed. Of these events, 9 can be interpreted as arising from the reaction p + p $Yields$ J(3.1) + anything. The cross section for this reaction is estimated and compared with the result obtained at lower center-of- mass energies. (auth).