抄録
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.
本文言語 | 英語 |
---|---|
ページ(範囲) | 350-356 |
ページ数 | 7 |
ジャーナル | Physics Letters B |
巻 | 174 |
号 | 3 |
DOI | |
出版ステータス | 出版済み - 7月 10 1986 |
外部発表 | はい |
!!!All Science Journal Classification (ASJC) codes
- 核物理学および高エネルギー物理学