High p<inf>T</inf> hadron production in photon-photon collisions
- Brandelik, R
- Braunschweig, W
- Gather, K
- Kirschfink, FJ
- Lübelsmeyer, K
- Martyn, HU
- Peise, G
- Rimkus, J
- Sander, HG
- Schmitz, D
- Schultz von Dratzig, A
- Trines, D
- Wallraff, W
- Boerner, H
- Fischer, HM
- Hartmann, H
- Hilger, E
- Hillen, W
- Knop, G
- Köpke, L
- Kolanoski, H
- Leu, P
- Wedemeyer, R
- Wermes, N
- Wollstadt, M
- Burkhardt, H
- Cooper, S
- Heyland, D
- Hultschig, H
- Joos, P
- Koch, W
- Kötz, U
- Kowalski, H
- Ladage, A
- Lüke, D
- Lynch, HL
- Mättig, P
- Mess, KH
- Notz, D
- Pyrlik, J
- Quarrie, DR
- Riethmüller, R
- Shapira, A
- Söding, P
- Wiik, BH
- Wolf, G
- Fohrmann, R
- Holder, M
- Krasemann, HL
- Poelz, G
- Römer, O
- Rüsch, R
- Schmüser, P
- Al-Agil, I
- Beuselinck, R
- Binnie, DM
- Campbell, AJ
- Dornan, PJ
- Garbutt, DA
- Jones, TD
- Jones, WG
- Lloyd, SL
- Pandoulas, D
- Sedgbeer, JK
- Stern, RA
- Yarker, S
- Bowler, MG
- Brock, IC
- Cashmore, RJ
- Devenish, R
- Grossmann, P
- Illingworth, J
- Ogg, M
- Salmon, GL
- Thomas, J
- Wyatt, TR
- Youngman, C
- Bell, KW
- Foster, B
- Hart, JC
- Proudfoot, J
- Saxon, DH
- Woodwarth, PL
- Duchovni, E
- Eisenberg, Y
- Karshon, U
- Mikenberg, G
- Revel, D
- Ronat, E
- Barklow, T
- Freeman, J
- Lecomte, P
- Meyer, T
- Rudolph, G
- Wicklund, E
- Sau, LW
- Zobernig, G
Publication date
January 2020
DOI Publisher
Elsevier BV Journal
Physics Letters BAbstract
We have studied the properties of hadron production in photon-photon scattering with tagged photons at the e+e- storage ring PETRA. A tail in the pT distribution of particles consistent with pT-4 has been observed. We show that this tail cannot be due to the hadronic part of the photon. Selected events with high pT particles are found to be consistent with a two-jet structure as expected from a point-like coupling of the photons to quarks. The lowest-order cross section predicted for γγ → qq, σ = 3 Σ eq4 · σγγ → μμ, is approached from above by the data at large transverse momenta. © 1981
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