Download or read book Massive Lepton Pair Production in Hadronic Collisions Review Drell Yan Quark Annihilation Scaling Violations written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is presented of theoretical attempts to describe the massive lepton pair continuum produced in hadronic collisions. Beginning with the classical Drell-Yan quark-antiquark annihilation model, its expectations are compared with data. Scaling violations and corrections to the Drell-Yan pictured are discussed. Next, original work is presented bearing on the understanding of the transverse momentum distributions of the dileptons. In a parton model, the quark-gluon scattering graphs which provide scaling violations also endow the dileptons with relatively large (P/sub T/). Comparisons with available data support these QCD expectations; further tests of the QCD predictions are proposed. Implications are drawn for W production experiments, and predictions are presented for reactions initiated by antiprotons.

Download or read book Massive Lepton Pair Production Review Parton Model Drell Yan Mechanism written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this review of massive lepton pair production the Drell-Yan mechanism is defined in terms of the parton model, and the modifications expected from Quantum Chromodynamics description of the process are described. The problems of the phenomenology of the data are described. Included in addition are particle-type dependence, mass spectra, momentum spectra of lepton pairs, Quantum Chromodynamics phenomenology of lepton pair production, angular distributions, structure functions and quark distributions, and the future outlook. 40 references. (JFP).

Download or read book Lepton Pair Production written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1981 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book I Multiperipheral Theory of Massive Lepton Pair Production written by Krishnappa Subba Rao and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Massive Lepton Pair Production written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A report is presented of recent experimental and theoretical progress in studies of the production of massive lepton pairs in hadronic collisions. Among the topics discussed are deviations from scaling, the status of the proofs of factorization in the parton model, higher-order terms in the QCD expansion, the discrepancy between measured and predicted yields (K factor), high-twist terms, soft gluon effects, and transverse momentum distributions.

Download or read book Longitudinal Spin Dependence of Massive Lepton Pair Production written by Edmond L. Berger and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Massive Lepton pair Production in High energy Hadro Collisions written by Ungku Faisal Ismail and published by . This book was released on 1984 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Massive Lepton Pair Production the Drell yan Process with Nuclear Targets written by and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spin Dependence of Massive Lepton Pair Production in Proton proton Collisions written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors calculate the transverse momentum distribution for the production of massive lepton-pairs in longitudinally polarized, proton-proton collider energies within the context of perturbative quantum chromodynamics. For values of the transverse momentum Q{sub {Tau}} greater than roughly half the pair mass Q, Q{sub {Tau}}> Q/2, they show that the differential cross section is dominated by subprocesses initiated by incident gluons, provided that the polarized gluon density is not too small. Massive lepton-pair differential cross sections should be a good source of independent constraints on the polarized gluon density, free from the experimental and theoretical complications of photon isolation that beset studies of prompt photon production. They provide predictions for the spin-averaged and spin-dependent differential cross sections as a function of Q{sub {Tau}} at energies relevant for the Relativistic Heavy Ion Collider (RHIC) at Brookhaven, and they compare these with predictions for real prompt photon production.

Download or read book Spin Dependence of Massive Lepton Pair Production in Proton proton Collisions written by Edmond L. Berger and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book La Guerra del Millecinquecento written by and published by . This book was released on 1845 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Issues in Massive Lepton Pair Production in Hadronic Interactions 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion is presented of issues of current importance in the theory and phenomenology of massive lepton pair production in hadronic interactions. The relevance of higher-twist inverse-power terms for all constituent scattering processes is emphasized. 7 figures.

Download or read book Hadronic Production of Massive Lepton Pairs written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is presented of recent experimental and theoretical progress in studies of the production of massive lepton pairs in hadronic collisions. I begin with the classical Drell-Yan annihilation model and its predictions. Subsequently, I discuss deviations from scaling, the status of the proofs of factorization in the parton model, higher-order terms in the perturbative QCD expansion, the discrepancy between measured and predicted yields (K factor), high-twist terms, soft gluon effects, transverse-momentum distributions, implications for weak vector boson (W/sup + -/ and Z°) yields and production properties, nuclear A dependence effects, correlations of the lepton pair with hadrons in the final state, and angular distributions in the lepton-pair rest frame.

Download or read book Hadroproduction of Massive Lepton Pairs and Tests of QCD Transverse Momentum Distribution Dependence written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests of quantum chromodynamics are proposed in the production of massive lepton pairs in hadronic collisions. Predictions are presented for the manner in which the transverse momentum distribution of the pair should change with changes in the mass and longitudinal momentum of the pair, and with changes in the overall energy of the collision. Data are shown to determine the average gluon momentum distribution in the nucleon. Lepton pair production in .pi. N and anti p N processes provides a method to isolate a gluon jet. 20 references.

Download or read book The Absence of Final State Interaction Corrections to the Dress Yan Formula for Massive Lepton Pair Production written by J. L. Cardy and published by . This book was released on 1974 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Massive Lepton Pairs in Hadronic Collisions written by Harry Brown Thacker and published by . This book was released on 1973 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Massive Lepton Pairs as a Prompt Photon Surrogate written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors discuss the transverse momentum distribution for the production of massive lepton-pairs in hadron reactions at fixed target and collider energies within the context of next-to-leading order perturbative quantum chromodynamics. For values of the transverse momentum Q{sub T} greater than the pair mass Q, Q{sub T}> Q, they show that the differential cross section is dominated by subprocesses initiated by incident gluons. Massive lepton-pair differential cross sections are an advantageous source of constraints on the gluon density, free from the experimental and theoretical complications of photon isolation that beset studies of prompt photon production. They compare calculations with data and provide predictions for the differential cross section as a function of Q{sub T} in proton-antiproton reactions at center-of-mass energies of 1.8 TeV, and in proton-nucleon reactions at fixed target and LHC energies.