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Properties of hadron final states in e+e- annihilation at 13 GeV and 17 GeV center of mass energies

Brandelik, R, Braunschweig, W, Gather, K, Jaax, B, Kadansky, V, 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, Korbach, W, Löhr, B, Roth, F, Rühmer, W, Wedemeyer, R, Wermes, N, Wollstadt, M, Bühring, R, Heyland, D, Hultschig, H, Joos, P, Koch, W, Kötz, U, Kowalski, H, Ladage, A, Lüke, D, Lynch, HL, Mikenberg, G, Notz, D, Pyrlik, J, Riethmüller, R, Schliwa, M, Söding, P, Wiik, BH, Wolf, G, Fohrmann, R, Poelz, G, Ringel, J, Römer, O, Rüsch, R, Schmüser, P, Binnie, DM, Dornan, PJ, Downie, NA, Garbutt, DA, Jones, WG, Lloyd, SL, Pandoulas, D, Youngman, C, Barlow, RJ, Cashmore, RJ, Illingworth, J, Ogg, M, Salmon, GL, Bell, KW, Chinowsky, W, Foster, B, Hart, JC, Proudfoot, J, Quarrie, DR, Saxon, DH, Woodworth, PL, Eisenberg, Y, Karshon, U, Kogan, E, Revel, D, Ronat, E, Shapira, A, Freeman, J, Lecomte, P, Meyer, T, Wu, SL and Zobernig, G (1979) Properties of hadron final states in e+e- annihilation at 13 GeV and 17 GeV center of mass energies Physics Letters B, 83 (2). pp. 261-266.

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We have observed e+e- hadrons at C.M. energies of 13 GeV and 17 GeV at PETRA using the TASSO detector. We find R(13 GeV) = 5.6 ± 0.7 and R(17 GeV) = 4.0 ± 0.7. The additional systematic uncertainty is 20%. Comparing inclusive charged hadron spectra we observe scaling between 5 GeV and 17 GeV for x = p/pbeam > 0.2; however the 13 GeV cross section is above the 17 GeV cross section for smaller x. This may be due to copious bb̄ production. The events become increasingly jet like at high energies as evidenced by a shrinking sphericity distribution with increasing energy. © 1979.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Brandelik, R
Braunschweig, W
Gather, K
Jaax, B
Kadansky, V
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
Korbach, W
Löhr, B
Roth, F
Rühmer, W
Wedemeyer, R
Wermes, N
Wollstadt, M
Bühring, R
Heyland, D
Hultschig, H
Joos, P
Koch, W
Kötz, U
Kowalski, H
Ladage, A
Lüke, D
Lynch, HL
Mikenberg, G
Notz, D
Pyrlik, J
Riethmüller, R
Schliwa, M
Söding, P
Wiik, BH
Wolf, G
Fohrmann, R
Poelz, G
Ringel, J
Römer, O
Rüsch, R
Schmüser, P
Binnie, DM
Dornan, PJ
Downie, NA
Garbutt, DA
Jones, WG
Lloyd, SL
Pandoulas, D
Youngman, C
Barlow, RJ
Cashmore, RJ
Ogg, M
Salmon, GL
Bell, KW
Chinowsky, W
Foster, B
Hart, JC
Proudfoot, J
Quarrie, DR
Saxon, DH
Woodworth, PL
Eisenberg, Y
Karshon, U
Kogan, E
Revel, D
Ronat, E
Shapira, A
Freeman, J
Lecomte, P
Meyer, T
Wu, SL
Zobernig, G
Date : 7 May 1979
DOI : 10.1016/0370-2693(79)90699-3
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 11:40
Last Modified : 24 Jan 2020 21:06

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