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Measurement of the proton antiproton pair production from two-photon collisions at TRISTAN.

The VENUS collaboration Hamasaki, H. ; Abe, K. ; Amako, K. ; et al.
Phys.Lett.B 407 (1997) 185-192, 1997.
Inspire Record 443677 DOI 10.17182/hepdata.38332

The cross section of the γγ → p p reaction was measured at two-photon center-of-mass energy ( W γγ ) between 2.2 and 3.3 GeV, using the two-photon process at an e + e − collider, TRISTAN. The W γγ dependence of the cross section integrated over a c.m. angular region of | cos θ ∗ | < 0.6 is in good agreement with the previous measurements and the theoreticalv prediction based on diquark model in the high W γγ region.

2 data tables
Table 1

Numerical values supplied by Hirhoshi Hamasaki.

Table 2

Angular distributions.


rivet Analysis
Study of pi+ pi- pair production in a two photon process at TRISTAN

The VENUS collaboration Yabuki, Fumiaki ; Abe, Koya ; Amako, Katsuya ; et al.
J.Phys.Soc.Jap. 64 (1995) 435-447, 1995.
Inspire Record 392360 DOI 10.17182/hepdata.38533

None

11 data tables
Table 1

ABS(COS(THETA)) < 0.4 for M(P=3 4) = 1.025 GeV.

Table 2

No description provided.

Table 3

No description provided.

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