Exclusive production of proton-antiproton pairs in photon-photon collisions

Bartel, W. and Finch, Alexander (1986) Exclusive production of proton-antiproton pairs in photon-photon collisions. Physics Letters B, 174 (3). pp. 350-356. ISSN 0370-2693

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Abstract

Total and differential cross sections for exclusive production of proton-antiproton pairs in photon-photon collisions have been measured using the JADE detector at PETRA. The total cross section in the CM angular |cos θ∗| < 0.6 reaches a maximum value of 3.8 nb for a γγ invariant mass of Wγγ = 2.25 GeV, and decreases rapidly for higher values of Wγγ. In the range 2.0 GeV < Wγγ < 2.6 GeV the angular distribution is not isotopic. The nucleons are preferentially emitted at large angles to the collision axis.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
63867
Deposited By:
Deposited On:
01 May 2013 15:54
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:25