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Friday, May 1, 2020 | History

5 edition of Lepton pair production found in the catalog.

Lepton pair production

Proceedings of the First Moriond Workshop, Les Arcs, Savoie, France, January 25-31, 1981

by

  • 234 Want to read
  • 33 Currently reading

Published by Editions Frontieres .
Written in English

    Subjects:
  • Nuclear Physics,
  • Science

  • The Physical Object
    FormatUnknown Binding
    Number of Pages389
    ID Numbers
    Open LibraryOL8984468M
    ISBN 102863320084
    ISBN 109782863320082

    Currently, there is not a very strong understanding of the partonic (quark and gluon-level) behavior of hadrons. However, studying pions, which are appealing for their low mass and simple quark-antiquark structure, can shed light on the interactions of quarks and gluons. This book reports a search for theoretically natural supersymmetry (SUSY) at the Large Hadron Collider (LHC). The data collected with the ATLAS detector in corresponding to 20 /fb of an integrated luminosity have been analyzed for stop pair production in proton–proton collisions at aBrand: Springer Singapore. We point out that over an experimentally important kinematic region lepton pair production arises from the annihilation of a quark and antiquark within the same hadron. This renders incorrect the conventional extraction of structure functions from data in this region. The transverse momentum distributions and branching ratios of mesons produced together with a lepton pair are studied in pp and p p collisions. A simple phenomenological formula describing the p T distributions is proposed. The large-p T behaviour of produced mesons can be used to determine the gluon distribution in the proton and to test its Q 2 variation as predicted by QCD.


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Lepton pair production Download PDF EPUB FB2

Title: Lepton Pair Production Through Two Photon Process in Heavy Ion Collisions. Lepton pair production book Spencer Klein, Al Mueller, Bo-Wen Xiao, Feng Yuan (Submitted on 5 Mar ) Abstract: This paper investigates the Lepton pair production book production of lepton pairs with low transverse momentum in relativistic heavy ion collisions.

We estimate the initial photons Cited by: 1. Abstract. The study of high mass lepton pair production originated as a by-product of the search for new particles.

Inthe Columbia-BNL group searching for the intermediate vector boson observed 1 the production of direct μ + μ − pairs with masses of up to about 5 GeV which could not have been explained by experimental background.

An explanation of the production process was proposed Cited by: 1. Coherent production of lepton pair in muon scattering by nucleus is considered.

With the help of different approaches (equivalent photon approximation, direct. The process of the lepton pair production by a neutrino propagating in an external electromagnetic field is investigated in the framework of the standard model.

Relatively simple exact expression for the probability as the single integral, which is suitable for a quantitative analysis, is by: 5. Dileptons can be produced through the mechanism of virtual bremsstrahlung during the deceleration of nuclei in relativistic heavy-ion collisions.

The dilepton spectrum is studied in the framework of second order perturbation theory. Coherence effects are found to enhance the contributions to pair emission through constructive interference, since the main deceleration of nuclear matter in these.

About this book Introduction The book provides an introduction to top quark production in the context of the Standard Model and presents two Lepton pair production book precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at the LHC.

About this book The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of Lepton pair production book TeV that were observed with the ATLAS Experiment at the LHC.

In this process, termed pair Lepton pair production book, a photon can simply vanish and in its place a matter-antimatter pair of particles can appear.

This phenomenon is a wonderful illustration of the fact that mass is not Lepton pair production book, since the mass of the electron and positron can be.

Abstract Massive lepton pair Lepton pair production book in high energy hadronic collisions is studied in the framework of perturbative QCD.

As for the origin of lepton pairs, the Drell-Yan process and the heavy quark pair production followed by the decay into leptons are taken into account. A model is proposed to reproduce existing experimental data.

Pair production is the creation of a subatomic particle and its antiparticle from a neutral es include creating an Lepton pair production book and a positron, a muon and an antimuon, or a proton and an production often refers specifically to a photon creating an electron–positron pair near a nucleus.

For pair production to occur, the incoming energy of the interaction must be above. Using impact{factor representation, we consider the lepton pair production by an incident high{energy photon in a strong electromagnetic eld Lepton pair production book a nucleus.

By summing leading terms of perturbation series, we obtain a simple formula for the amplitude, valid to all orders in O(Z) and arbitrary eld of the nucleus.

The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at Manufacturer: Springer.

Get this from a library. Lepton Lepton pair production book production: proceedings of the First Moriond Workshop, Les Arcs, Savoie, France, January[J Thanh Van Tran;]. Corpus ID: Lepton Pair Production Through Two Photon Process in Heavy Ion Collisions @inproceedings{KleinLeptonPP, title={Lepton Pair Production Through Two Photon Process in Heavy Ion Collisions}, author={Spencer R.

Klein and Alfred Henry Mueller and Bo-wen Xiao and Feng Yuan}, year={} }. Once Nino came to my office to tell me about his ideas of studying lepton pair production at PS. I was still not Director General, but Research Director at CERN. In addition to (e + e -) and (μ + μ -) pairs, he wanted to search for (e ± μ ∓) pairs as a signature of a new lepton carrying its own lepton number.

Lepton pair production as a probe of hot and dense hadronic matter Gale, Charles; Abstract. We evaluate the production of lepton pairs from pion-pion annihilation first in a hot background of nucleon, then in a hot background of pions.

We show how the signal. The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at Format: Hardcover.

Drell, S. Massive Lepton Pair Production in Hadron-Hadron Collisions at High States: N. p., Web. This paper investigates the electromagnetic production of lepton pairs with low transverse momentum in relativistic heavy ion collisions. We estimate the initial photons' transverse momentum contributions by employing models where the average transverse momentum squared of the incoming photon can be calculated in the equivalent photon by: 1.

The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at. Quantum tomography for collider physics: Illustrations with lepton pair production John C.

Martens,1, John P. Ralston,1 and J. Tapia Takaki1 1Department of Physics and Astronomy, The University of Kansas, Lawrence, KSUSA Abstract: Quantum tomography is a method to experimentally extract all that is observable about.

As a testing ground for such an analysis we consider the Abelian problem of higher order Coulomb distortions of the spectrum of lepton pairs produced in peripheral nuclear collisions. We report an explicit calculation of the contribution to the lepton pair production in the collision of two photons from one nucleus with two photons from the.

On the basis of a parton model studied earlier we consider the production process of large-mass lepton pairs from hadron-hadron inelastic collisions in the limiting region, s→∞, Q2s finite, Q2 and s being the squared invariant masses of the lepton pair and the two initial hadrons, respectively.

Top Quark Pair Production Precision Measurements of the Top Quark Pair Production Cross Section in the Single Lepton Channel with the ATLAS Experiment by Anna Christine Henrichs.

Published by Springer. lepton pair production, as well as of our understanding of weak interactions. The above asymmetries mentioned are computed within the framework of the parton model. Pair Production. Sometimes, a photon turns into a particle and its antiparticle, for example, an electron and a positron.

It could not turn into just an electron, since this would leave the lepton number unbalanced. The photon must have enough energy to create the masses of the two particles. Coherent production of lepton pair in muon scattering by nucleus is considered. With the help of different approaches (equivalent photon approximation, direct numerical and analytical calculations.

The three lepton-pair types are equally probable, electron-positron, muon-antimuon, and tau-antitau pairs. A boson is neutral and so the sum of the charges of its decay products must be zero.

In Histogram Analyser the lepton-antilepton pair production can be studied in the electron-electron (ee) and muon-muon (mm) channel. Top Quark Pair Production: Precision Measurements of the Top Quark Pair Production Cross Section in the Single Lepton Channel with the ATLAS Experiment (Springer Theses) by Anna Christine Henrichs.

by George /5(40). CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The angular distributions of high mass lepton pairs are reviewed. It is argued that the detailed study of polar distributions provide the evidence for the substantial contributions to the Drell-Yan process from the higher order QCD effects.

It is also pointed out that the first order QCD "Comptonfl diagrams predict. Muon. The muon is a lepton which decays to form an electron or positron. The fact that the above decay is a three-particle decay is an example of the conservation of lepton number; there must be one electron neutrino and one muon neutrino.

or antineutrino in the decay. The lifetime of the muon is microseconds. The muon is produced in the upper atmosphere by the decay of pions produced.

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The Drell-Yan contribution to the massive lepton-pair production in hadron-hadron scattering is calculated using the parton distributions extracted from deep inelastic eN and 1/N scattering data.

The calculated cross sections at BNL energy agree well with the measured data, (Submitted for publication.). The tau (τ), also called the tau lepton, tau particle, or tauon, is an elementary particle similar to the electron, with negative electric charge and a spin of 1 / the electron, the muon, and the three neutrinos, the tau is a lepton, and like all elementary particles with half-integer spin, the tau has a corresponding antiparticle of opposite charge but equal mass and ered: Martin Lewis Perl et al.

Pittsburgh Workshop on Soft Pair and Photon Production ( University of Pittsburgh). Proceedings of the Pittsburgh Workshop on Soft Lepton Pair and Photon Production.

Commack, N.Y.: Nova Science, (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors / Contributors: Julia A Thompson. Quark Annihilation and Lepton Formation versus Pair Production and Neutrino Oscillation: The Fourth Generation of Leptons T.

Zhang Department of Physics, Alabama A & M University, Normal, Alabama E-mail: @ The emergence or formation of leptons from particles composed of quarks is still re-mained very poorly understood.

@article{osti_, title = {Photoproduction of lepton pairs in proton-nucleus and nucleus-nucleus collisions at RHIC and LHC energies}, author = {Moreira, B.

and Goncalves, V. and De Santana Amaral, J. T.}, abstractNote = {In this contribution we study coherent interactions as a probe of the nonlinear effects in the Quantum Electrodynamics (QED).

Lepton, any member of a class of subatomic particles that respond only to the electromagnetic force, weak force, and gravitational force and are not affected by the strong force. Leptons are said to be elementary particles; that is, they do not appear to be made up of smaller units of matter.

The FLIR Lepton® is a radiometric-capable LWIR camera solution that is smaller than a dime, fits inside a smartphone, and is one tenth the cost of traditional IR cameras. Using focal plane arrays of either x or 80x60 active pixels, Lepton easily integrates into native mobile-devices and other electronics as an IR sensor or thermal imager.

The radiometric Lepton captures accurate. HAL - Accueil; Consulter: Par thème arXiv; Par discipline IN2P3;Par type de document; Les 30 derniers dépôts; Par année de publication. We study Higgs boson pair production processes at future hadron and lepton colliders includ-ing the photon collision option in several new physics models; i.e., the two-Higgs-doublet model, the scalar leptoquark model, the sequential fourth generation fermion model and the vector-like quark model.

Inelastic Lepton-Nucleon Scattering and Lepton Pair Production in the Relativistic Quark-Parton Model* Pdf Kutif and Victor F. Weisskopf Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts (Received 26 July ) We discuss the interaction of hadrons with leptons in.In a sample of Z decays, events with two leptons and an additional pair of charged particles are studied.

The 35 events found show a possible excess in the tau channel compared with the expectation from electroweak processes. The features of.urements of deep inelastic lepton scattering on hadrons and ebook dilepton pair production in h~droncollisions were presented which showed satisfying consistency with QCD calculations.

The progress made on theoret­ ical calculations of these reactions was sufficiently encouraging to let one hope that by the next confer~nce.