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Properties of charm jets produced in e+e- annihilation near 34 GeV

Physics Letters B 135:1-3 (1984) 243-249

Authors:

M Althoff, W Braunschweig, FJ Kirschfink, K Lübelsmeyer, HU Martyn, G Peise, J Rimkus, P Rosskamp, HG Sander, D Schmitz, H Siebke, W Wallraff, HM Fischer, H Hartmann, W Hillen, A Jocksch, G Knop, L Köpke, H Kolanoski, H Kück, R Wedemeyer, N Wermes, M Wollstadt, Y Eisenberg, K Gather, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, RJ Nowak, J Pyrlik, DR Quarrie, M Rushton, W Schütte, D Trines, G Wolf, C Xiao, R Fohrmann, E Hilger, T Kracht, HL Krasemann, P Leu, E Lohrmann, D Pandoulas, G Poelz, BH Wiik, R Beuselinck, DM Binnie, AL Campbell, PJ Dornan, B Foster, DA Garbutt, C Jenkins, TD Jones, WG Jones, J McCardle, JK Sedgbeer, J Thomas, WAT Wan Abdullah, KW Bell, MG Bowler, P Bull, RJ Cashmore, PEL Clarke, R Devenish, P Grossmann, CM Hawkes, SL Lloyd, GL Salmon, TR Wyatt, C Youngman, GE Forden, JC Hart, J Harvey, DK Hasell, J Proudfoot, DH Saxon, PL Woodworth, F Barreiro, M Dittmar, M Holder, B Neumann, E Duchovni, U Karshon, G Mikenberg, R Mir, D Revel, E Ronat, A Shapira, G Yekutieli, T Barklow, A Caldwell, M Cherney, JM Izen

Abstract:

D*± production via e+e- → D*±X was studied at CM energies near 34 GeV. The charged particles produced in the hemisphere opposite to that of the D* were used to investigate the fragmentation of charm jets. All spectra studied show a close similarity between the charm jet and the average jet obtained by summing over all quark flavours. The spectra of particles produced in the D* hemisphere were used to study separately first rank and higher rank fragmentation. © 1984.
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Production and muonic decay of heavy quarks in e+e- annihilation at 34.5 GeV

Zeitschrift Fur Physik C Particles and Fields 22:3 (1984) 219-229

Authors:

M Althoff, W Braunschweig, FJ Kirschfink, K Lübelsmeyer, HU Martyn, G Peise, J Rimkus, P Rosskamp, HG Sander, D Schmitz, H Siebke, W Wallraff, HM Fischer, H Hartmann, W Hillen, W Jocksch, G Knop, L Köpke, H Kolanoski, H Kück, R Wedemeyer, N Wermes, M Wollstadt, Y Eisenberg, K Gather, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, RJ Nowak, J Pyrlik, DR Quarrie, M Rushton, W Schütte, D Trines, G Wolf, C Xiao, R Fohrmann, E Hilger, T Kracht, HL Krasemann, P Leu, E Lohrmann, D Pandoulas, G Poelz, BH Wiik, R Beuselinck, DM Binnie, AL Campbell, PJ Dornan, B Foster, DA Garbutt, C Jenkins, TD Jones, WG Jones, J McCardle, JK Sedgbeer, WATW Abdullah, KW Bell, MG Bowler, P Bull, RJ Cashmore, PEL Clarke, R Devenish, P Grossmann, CM Hawkes, SL Lloyd, GL Salmon, J Thomas, TR Wyatt, C Youngman, GE Forden, JC Hart, J Harvey, DK Hasell, J Proudfoot, DH Saxon, PL Woodworth, F Barreiro, M Dittmar, M Holder, B Neumann, E Duchovni, U Karshon, G Mikenberg, R Mir, D Revel, D Ronat, A Shapira, G Yekutieli, T Barklow, A Caldwell, M Cherney, JM Izen

Abstract:

The production of prompt muons in e+e- annihilation has been studied at centre of mass energies near 34.5 GeV. The measured semi-muonic branching ratios of b and c quarks are B(b»Xμv) =0.117±0.028±0.01 and B(c→Xμv)=0.082 ±0.012a-0.01 +0.02. The fragmentation functions of heavy quarks are hard, b>=0.85a-0.12-0.07 +0.10+0.02 and c> =0.77a-0.07-0.11 +0.05+0.03. Limits have been set on flavour changing neutral current decays:B(b→Xμ+μ-) <0.02 and B(b→Xμ+μ- (95% confidence level). © 1984 Springer-Verlag.
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AN IMPROVED MEASUREMENT OF ELECTROWEAK COUPLINGS FROM E+E--]E+E- AND E+E--]MU+MU-

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 22:1 (1984) 13-21

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, HM FISCHER, H HARTMANN, W HILLEN, A JOCKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, R WEDEMEYER, N WERMES, M WOLLSTADT, H BURKHARDT, Y EISENBERG, K GATHER, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, J PYRLIK, DR QUARRIE, M RUSHTON, W SCHUTTE, D TRINES, G WOLF, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, BH WIIK, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, JK SEDGBEER, WAT WANABDULLAH, KW BELL, MG BOWLER, IC BROCK, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, SL LLYOD, GL SALMON, J THOMAS, TR WYATT, C YOUNGMAN, JC HART, J HARVEY, DK HASELL, J PROUDFOOT, DH SAXON, PL WOODWORTH, F BARREIRO, M DITTMAR, M HOLDER, B NEUMANN, E DUCHOVNI, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, G YEKUTIELI, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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DETERMINATION OF ALPHA-S IN 1ST AND 2ND ORDER QCD FROM E+E- ANNIHILATION INTO HADRONS

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 26:2 (1984) 157-174

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, J EISENMANN, HM FISCHER, H HARTMANN, A JOCKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, V MERTENS, R WEDEMEYER, A ESKREYS, K GATHER, H HULTSCHIG, P JOOS, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, RJ NOWAK, J PYRLIK, M RUSHTON, W SCHUTTE, D TRINES, T TYMIENIECKA, G WOLF, G YEKUTIELI, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, KU POSNECKER, BH WIIK, R BEUSELINCK, DM BINNIE, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, KJ SEDGBEER, J THOMAS, WAT WANABDULLAH, KW BELL, MG BOWLER, P BULL, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, CM HAWKES, SL LLOYD, C YOUNGMAN, GE FORDEN, JC HART, J HARVEY, DK HASELL, DH SAXON, F BARREIRO, S BRANDT, M DITTMAR, M HOLDER, G KREUTZ, B NEUMANN, E DUCHOVNI, Y EISENBERG, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, M WINIK, G BARANKO, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, M TAKASHIMA, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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JET PRODUCTION AND FRAGMENTATION IN E+E- ANNIHILATION AT 12-43 GEV

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 22:4 (1984) 307-340

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, HM FISCHER, H HARTMANN, W HILLEN, A JOKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, V MERTENS, R WEDEMEYER, N WERMES, M WOLLSTADT, Y EISENBERG, K GATHER, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, RJ NOWAK, J PYRLIK, DR QUARRIE, M RUSHTON, W SCHUTTE, D TRINES, G WOLF, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, KU POSNECKER, BH WIIK, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, JK SEDGBEER, J THOMAS, WAT WANABDULLAH, KW BELL, MG BOWLER, P BULL, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, CM HAWKES, SL LLOYD, GL SALMON, TR WYATT, C YOUNGMAN, GE FORDEN, JC HART, J HARVEY, DK HASELL, J PROUDFOOT, DH SAXON, PL WOODWORTH, F BARREIRO, M DITTMAR, M HOLDER, B NEUMANN, E DUCHOVNI, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, G YEKUTIELI, G BARANKO, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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