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Helicity dependence of the (gamma)over-right-arrow (p)over-right-arrow -> n pi(+) pi(0) reaction in the second resonance region

Författare:
  • J Ahrens
  • S Altieri
  • JRM Annand
  • G Anton
  • HJ Arends
  • K Aulenbacher
  • R Beck
  • C Bradtke
  • A Braghieri
  • N Degrande
  • N D'Hose
  • 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
  • T Rostomyan
  • C Rovelli
  • D Rychbosch
  • 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: 49-55
Publikation/Tidskrift/Serie: Physics Letters B
Volym: 551
Nummer: 1-2
Dokumenttyp: Artikel
Förlag: Elsevier Science

Sammanfattning

The helicity dependence of the total cross section for the (γ) over right arrow(p) over right arrownpi(+) pi(0) reaction has been measured for the first time at incident photon energies from 400 to 800 MeV The measurement was performed with the large acceptance detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. This channel is found to be excited predominantly when the photon and proton have a parallel spin orientation, due to the intermediate production of the D-13 resonance. (C) 2002 Elsevier Science B.V. All rights reserved.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 0370-2693

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