Meny

Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

First measurement of the helicity-dependent (gamma)over-right-arrow(p)over-right-arrow -> p eta differential cross-section

Författare:
  • J Ahrens
  • S Altieri
  • JRM Annand
  • G Anton
  • HJ Arends
  • K Aulenbacher
  • R Beck
  • C Bradtke
  • A Braghieri
  • N d'Hose
  • D Drechsel
  • H Dutz
  • S Goertz
  • P Grabmayr
  • Kurt Hansen
  • J Harmsen
  • D von Harrach
  • S Hasegawa
  • T Hasegawa
  • E Heid
  • K Helbing
  • H Holvoet
  • L Van Hoorebeke
  • N Horikawa
  • T Iwata
  • O Jahn
  • P Jennewein
  • T Kageya
  • B Kiel
  • F Klein
  • R Kondratiev
  • K Kossert
  • J Krimmer
  • M Lang
  • B Lannoy
  • R Leukel
  • V Lisin
  • T Matsuda
  • JC McGeorge
  • A Meier
  • D Menze
  • W Meyer
  • T Michel
  • J Naumann
  • A Panzeri
  • P Pedroni
  • T Pinelli
  • I Preobrajenski
  • E Radtke
  • E Reichert
  • G Reicherz
  • C Rohlof
  • G Rosner
  • D Ryckbosch
  • M Sauer
  • B Schoch
  • M Schumacher
  • B Seitz
  • T Speckner
  • N Takabayashi
  • G Tamas
  • A Thomas
  • R van de Vyver
  • A Wakai
  • W Weihofen
  • F Wissmann
  • F Zapadtka
  • G Zeitler
Publiceringsår: 2003
Språk: Engelska
Sidor: 241-244
Publikation/Tidskrift/Serie: European Physical Journal A
Volym: 17
Nummer: 2
Dokumenttyp: Artikel
Förlag: EDP Sciences

Sammanfattning

The helicity dependence of the (γ) over right arrow(p) over right arrow -+ peta reaction has been measured for the first time at a center-of-mass angle theta(eta)*= 70degrees in the photon energy range from 780 MeV to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4pi-detector system, a circularly polarized, tagged photon beam. and a longitudinally polarized frozen-spin target. The helicity 3/2 cross-section is found to be small and the results for helicity 1/2 agree with predictions from the MAID analysis.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 1434-6001

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen