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A comparison of particles recoiling from high pt direct photons and π°'s at the isr

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • T. Akesson
  • M. G. Albrow
  • S. Almehed
  • E. Anassontzis
  • R. Batley
  • O. Benary
  • H. Boggild
  • O. Botner
  • H. Breuker
  • V. Burkert
  • A. Di Ciaccio
  • D. Cockerill
  • S. Dagan
  • E. Dahl-Jensen
  • I. Dahl-Jensen
  • G. Damgaard
  • W. M. Evans
  • C. W. Fabjan
  • H. Gordon
  • A. Hallgren
  • B. Heck
  • H. J. Hilke
  • G. Jarlskog
  • P. Jeffreys
  • T. Killian
  • C. Kourkoumelis
  • J. V.D. Lans
  • D. Lissauer
  • B. Lörstad
  • T. Ludlam
  • N. A. McCubbin
  • I. Mannelli
  • U. Mjörnmark
  • W. Molzon
  • Y. Oren
  • R. B. Palmer
  • D. C. Rahm
  • P. Rehak
  • L. K. Resvanis
  • L. Rosselet
  • E. Rosso
  • A. Rudge
  • R. H. Schindler
  • B. Schistad
  • I. Stumer
  • W. J. Willis
  • M. Winik
  • W. Witzeling
  • C. Woody

We have studied the distribution of charged particles recoiling from high pT(> 3.5 GeV/c) direct photons and neutral pions in pp collisions at √s = 63 GeV. One expects a different mixture of quark and gluon initiated jets in the two cases, with predominantly u-quark jets recoiling from direct photons. No significant differences are observed in our momentum range apart from the charge composition, with a larger positive to negative ratio for particles with pT > 1 GeV/c opposite direct photons than opposite π°.

OriginalsprogEngelsk
TidsskriftPhysica Scripta
Vol/bind34
Udgave nummer2
Sider (fra-til)106-110
Antal sider5
ISSN0031-8949
DOI
StatusUdgivet - 1 aug. 1986

ID: 218391910