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High pT 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 and Zobernig, G (1981) High pT hadron production in photon-photon collisions Physics Letters B, 107 (4). pp. 290-296.

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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.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
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
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
Date : 17 December 1981
DOI : 10.1016/0370-2693(81)90833-9
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 11:39
Last Modified : 24 Jan 2020 21:05

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