generalized Weizsäcker-Williams Method applied to pion production in proton-proton collisions

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Published by National Aeronautics and Space Administration, Langley Research Center, For sale by the National Technical Information Service in Hampton, VA, [Springfield, Va .

Written in English

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  • Pions.,
  • Particle production.

Edition Notes

Book details

StatementSean C. Ahern ... [et al.].
SeriesNASA TP- -- 2002-211938., NASA technical paper -- 211938.
ContributionsAhern, Sean C., Langley Research Center.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL18227506M

Download generalized Weizsäcker-Williams Method applied to pion production in proton-proton collisions

A new "Generalized" Weizsiicker-Williams Method (GWWM) is used to cal- culate approximate cross relativistic peripheral proton-proton col- lisions. Language A new ''Generalized'' Weizsacker-Williams method (GWWM) is used to calculate approximate cross sections for relativistic peripheral proton-proton collisions.

Instead of a mass less photon mediator, the method allows for the mediator to have mass for short range interactions. Get this from a library.

A generalized Weizsäcker-Williams Method applied to pion production in proton-proton collisions. [Sean C Ahern; Langley Research Center.;].

BibTeX @MISC{Ahern02ageneralized, author = {Sean C. Ahern and William J. Poyser and John W. Norbury and R. Tripathi}, title = {A Generalized Weizsäcker-Williams Method Applied to Pion Production in Proton-Proton Collision}, year = {}}. Pion production in proton-proton collisions in a covariant one-boson-exchange model Article (PDF Available) in Nuclear Physics A (3) January with 23 Reads How we measure 'reads'.

The process pp→ ppπ0 was studied atMeV for low four-momentum transfer collisions. The angular distributions of the outgoing protons are compared with the one-pion exchange peripheral model. It is found that the form factor derived from pion production at higher energies gives good agreement between the observed and theoretical angular distributions.

A program to measure the two‐pion production in nucleon‐nucleon collisions exclusively and in all channels from threshold up to Tp = MeV has been started at. Multiple pion production by 24 GeV/c protons in a hydrogen bubble chamber is studied.

Effective-mass plots are shown for 4-prong and 6-prong events for the combinations pπ+ and pπ− against the squared four-momentum transfer to the same systems and for the combination π+π−.

The results give support to the assumption that the peripheral interaction is the dominant one. collisions. In this paper, the measurement of primary π±, K±, p and p production at mid-rapidity in proton–proton collisions at √ s = 7 TeV using the ALICE detector [7–10] is presented.

Primary particles are defined as prompt par-ticles produced in the collision including decay products, except those from weak decays of light flavour. Calculations of the K-meson production in proton-proton collisions close to threshold within the one-pion exchange followed by N∗() resonance excitation were performed by F¨aldt and Wilkin [21].

Actually the pion exchange diagrams from Fig. 2 can be reversed to the graph shown in Fig. Moreover, within this resonance. Recent results on pion production from proton-nucleus collisions at the Moscow Meson Factory are presented and compared with previous data.

Two main topics are discussed: the pion production below the free NN threshold and the long-standing problem of the anomalous production of π+ near MeV, for which a definite evidence of a narrow resonance has been obtained.

We measured the differential production cross section for producing pions in GeV/c p-p collisions on lines of fixed P1 and P in the c.m. system. The measurement of primary π ±, K ±, p and p ¯ production at mid-rapidity (|y| in proton–proton collisions at s = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported.

Particle identification is performed using the specific ionisation energy-loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink.

Two-pion production in nucleon–nucleon collisions is an outstanding subject, since it connects ππ dynamics with baryon and baryon–baryon degrees of freedom.

There is increasing evidence that the puzzling ABC effect observed in double-pionic fusion reactions may possibly be traced back to an isoscalar resonance phenomenon as source for the peculiar pion pair production in the ππ scalar.

Two-pion production reactions in proton–proton collisions have been studied using the PROMICE/ WASA detector and an internal cluster gas-jet target at the CELSIUS storage ring in Uppsala.

The total cross sections for the pp→ppπ + π −, pp→ppπ 0 π 0 and the pp→pnπ 0 π + reactions are presented at beam energies ranging from to. Using the constants mp = MeV / c2 and mπ = MeV / c2, we get: E = GeV ⟹ T = MeV So if a proton with MeV of kinetic energy collided with a stationary proton, there is a chance that a pion will be produced.

Title: Measurement of charged pion, kaon, and proton production in proton-proton collisions at sqrt(s) = 13 TeV. Authors: CMS Collaboration (Submitted on 30 Jun ) Abstract: Transverse momentum spectra of charged pions, kaons, and protons are measured in proton-proton collisions at sqrt(s) = 13 TeV with the CMS detector at the LHC.

The. The European Physical Journal C (EPJ C) presents new and original research results in theoretical physics and experimental physics.

Positive Pion Production in Proton-Nucleus Collision Kenji KUME 0 Hisao 0 HTSUBO 0 1 0 Department of Physics, Nara Women's University, Nara 1 Department of Physics, Osaka University, Toyonaka, Osaka Positive pion production process on 12C by MeV proton is studied within the framework of DWBA by adopting the Kisslinger-type optical.

Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider.

The production of π +, π −, K+, K−, p, and \(\overline{\mathrm{p}}\) at mid-rapidity has been measured in proton-proton collisions at \(\sqrt{s} = ~\mathrm{GeV}\) with the ALICE detector. Particle identification is performed using the specific.

scription of inclusive pion production in the entire kinematic range for pA collisions at 5 GeV/c. The cumulant method. Accurate reconstruction of the reaction plane in the event plane method requires a large number of particles in the final state.

In situations where the number of final state particles is small (e.g. in peripheral collisions), the event plane method has large uncertainty. As previously advertised, this was the production method used for the discovery of the anti-proton (which you first need to make, and then detect): The process is the minimal one that conserves baryon number (e.g.

in pp collisions) since p is the lightest baryon: p+p→p+p+p+p. Physics of Radioactive Beams1 Chapter 8 Pion Production Carlos A. Bertulani, Texas A&M University-Commerce, TXUSA 1These notes consist of a series of lectures presented by the author at the Geselschaft fur Schw- erionenforschung, Darmstadt, Germany in the Spring of A set of new, precise data have recently been made available by the NA49 collaboration for charged pion production in proton-proton and proton-Carbon reactions at GeV.

In this formula, kis the center-of-mass momentum for the collision. As higher pion energies became available at the Brookhaven Cosmotron, more ˇpresonances (this time in the I= 1=2 channel and hence seen only in ˇ p) were observed, as shown in Figure Improved measurements of these resonances came from photoproduction experiments, N.

Production of pions, kaons and protons in pp collisions at √ s= GeV with ALICE at the LHC ALICE Collaboration Abstract The production of π +, π −, K, K, p, and p at mid-rapidity has been measured in proton-proton collisions at √ s = GeV with the ALICE detector. Particle identification is. Abstract.

We report results of a study of multiple pion production in the reactions π + p-->pπ + π + π-and π + p-->pπ + π + π - π 0 at pion kinetic energies MeV, MeV, and MeV.

Double pion production is dominated by production of the N * (32, 32) nucleon isobar and no other resonant states among the outgoing particles are identified. Triple pion production proceeds almost. An analysis of inclusive pion production in proton-beryllium collisions at, and GeV/c proton beam momentum has been performed.

The data were. Charged-Particle Multiplicity Distributions overWide Pseudorapidity Range in Proton-Proton and Proton-Lead Collisions with ALICE.

Mads Søgaard: Scattering Amplitudes via Algebraic Geometry Methods Proton-Proton Central Exclusive Pion Production at √s = 13 TeV with the ALFA and ATLAS detector: CMB methods applied to flow data. PION AND PROTON PRODUCTION IN PROTON PROTON COLLISIONS AT GeV/c by John Layton Day Chairman: Alan D.

Krisch The differential producti0n cross section for pions and the differential inelastic cross section for protons were studied in proton proton collisions at GeV/c. Determination of the strong coupling constant αS(mZ) from measurements of inclusive W± and Z boson production cross sections in proton-proton collisions at $$ \sqrt{\mathrm{s}} $$ = 7 and 8 TeV A.

Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi and T. Bergauer et al. The thesis describes same, features of the interactions of high energy protons and negative pions as observed in nuclear emulsions.

A survey is given of the interactions of π(^-)-mesons in the energy range (l00→4,)MeV, and in particular the optical model analysis is described. It is shown that the optical model can be made to fit the data over the whole energy range.

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract. A new phenomenological model has been developed to describe pion production in high-energy proton-nucleus interactions. Special attention is paid to low-momentum pions ( Study of the production of charged pions, kaons, and protons in pPb collisions at √sNN = TeV S.

Chatrchyan Yerevan Physics Institute, Armenia The CMS collaboration, [email protected] Ekaterina Avdeeva University of Nebraska-Lincoln, [email protected] Kenneth A. Bloom University of Nebraska - Lincoln, [email protected]

where N-'- is the pion-nucleon resonance with T - T % = J — 3/2, central mass value Ô KeV, and width Z-IeV. It was ob­ served that the production is highly peripheral; that is, in the over-all center of mass sys'oem more than 5C/C of the are produced with a production.

“Neutral Pion Production in Au+Au Collisions at “Measurement of Transverse Single-Spin Asymmetries for Di-Jet Production in Proton-Proton Collisions at √s NN = GeV”, STAR Collaboration, B.I.

Abelev, et al., "The Arrow of Electromagnetic Time and Generalized Absorber Theory", Foundations of Phys Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at s N N = d pions, kaons, and protons in the transverse-momentum range p T ≈ – GeV/c and laboratory rapidity |y|.

ow of anti-protons, kaons and pions is studied using the scalar product method. The elliptic ow is compared qualitatively with a viscous hydrodynamic model to investigate mass ordering of the particle species. In the rst chapter some background information is provided.

mean energy loss per ion pair production of W =36eV. As will be shown later, the mean energy loss actually is energy dependent. Taking the Rees [] method as a start-ing framework, Galand et al. [] improved the method by using a 1-D multistream transport model and developed a parameterization of ion and electron production rates for.Pion-proton collision.

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We investigate how the non-extensive approach works in high-energy physics. Transverse momentum (p T) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann–Gibbs statistics. It is shown that some non-extensive distributions can be transferred one into another.

We find explicit hadron mass and center-of-mass energy scaling both .

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