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A MEASUREMENT OF IOTA-TOT(GAMMA-P) AT ROOT-S=210GEV

PHYSICS LETTERS B 293:3-4 (1992) 465-477

Authors:

M DERRICK, D KRAKAUER, S MAGILL, B MUSGRAVE, J REPOND, K SUGANO, R STANEK, RL TALAGA, J THRON, F ARZARELLO, R AVED, G BARBAGLI, G BARI, M BASILE, L BELLAGAMBA, D BOSCHERINI, G BRUNI, P BRUNI, GC ROMEO, G CASTELLINI, M CHIARINI, L CIFARELLI, F CINDOLO, F CIRALLI, A CONTIN, S DAURIA, C DELPAPA, F FRASCONI, P GIUSTI, G IACOBUCCI, G LAURENTI, G LEVI, Q LIN, B LISOWSKI, G MACCARRONE, A MARGOTTI, T MASSAM, R NANIA, C NEMOZ, F PALMONARI, G SARTORELLI, R TIMELLINI, YZ GARCIA, A ZICHICHI, A BARGENDE, F BARREIRO, J CRITTENDEN, H DABBOUS, K DESCH, B DIEKMANN, M GEERTS, G GEITZ, B GUTJAHR, H HARTMANN, J HARTMANN, D HAUN, K HEINLOTH, E HILGER, HP JAKOB, S KRAMARCZYK, M KUCKES, A MASS, S MENGEL, J MOLLEN, H MUSCH, E PAUL, R SCHATTEVOY, B SCHNEIDER, JL SCHNEIDER, R WEDEMEYER, A CASSIDY, DG CUSSANS, N DYCE, HF FAWCETT, B FOSTER, R GILMORE, GP HEATH, M LANCASTER, TJ LLEWELLYN, J MALOS, CJS MORGADO, RJ TAPPER, SS WILSON, RR RAU, A BERNSTEIN, A CALDWELL, I GIALAS, JA PARSONS, S RITZ, F SCIULLI, PB STRAUB, L WAI, S YANG, T BARILLARI, M SCHIOPPA, G SUSINNO, W BURKOT, J CHWASTOWSKI, A DWURAZNY, A ESKREYS, B NIZIOL, Z JAKUBOWSKI, K PIOTRZKOWSKI, M ZACHARA, L ZAWIEJSKI, P BORZEMSKI, K ESKREYS, K JELEN, D KISIELEWSKA, T KOWALSKI, J KULKA, E RULIKOWSKAZAREBSKA, L SUSZYCKI, J ZAJAC, T KEDZIERSKI, A KOTANSKI, M PRZYBYCIEN, LAT BAUERDICK, U BEHRENS, JK BIENLEIN, C COLDEWEY, A DANNEMANN, K DIERKS, W DORTH, G DREWS, P ERHARD, M FLASINSKI, I FLECK, A FURTJES, R GLASER, P GOTTLICHER, T HAAS, L HAGGE, W HAIN, D HASELL, H HULTSCHIG, G JAHNEN, P JOOS, M KASEMANN, R KLANNER, W KOCH, U KOTZ, H KOWALSKI, J LABS, A LADAGE, B LOHR, M LOWE, D LUKE, J MAINUSCH, O MANCZAK, M MOMAYEZI, S NICKEL, D NOTZ, I PARK, KU POSNECKER, M ROHDE, E ROS, U SCHNEEKLOTH, J SCHROEDER, W SCHULZ, F SELONKE, E TSCHESLOG, T TSURUGAI, F TURKOT, W VOGEL, T WOENIGER, G WOLF, C YOUNGMAN, HJ GRABOSCH, A LEICH, A MEYER, C RETHFELDT, S SCHLENSTEDT, R CASALBUONI, S DECURTIS, D DOMINICI, A FRANCESCATO, M NUTI, P PELFER, G ANZIVINO, R CASACCIA, I LAAKSO, S DEPASQUALE, S QIAN, L VOTANO, A BAMBERGER, A FREIDHOF, T POSER, S SOLDNERREMBOLD, G THEISEN, T TREFZGER, NH BROOK, PJ BUSSEY, AT DOYLE, JR FORBES, VA JAMIESON, C RAINE, DH SAXON, G GLOTH, U HOLM, H KAMMERLOCHER, B KREBS, T NEUMANN, K WICK, A HOFMANN, W KROGER, J KRUGER, E LOHRMANN, J MILEWSKI, M NAKAHATA, N PAVEL, G POELZ, R SALOMON, A SEIDMAN, W SCHOTT, BH WIIK, F ZETSCHE, TC BACON, I BUTTERWORTH, C MARKOU, D MCQUILLAN, DB MILLER, MM MOBAYYEN, A PRINIAS, A VORVOLAKOS, T BIENZ, H KREUTZMANN, U MALLIK, E MCCLIMENT, M ROCO, MZ WANG, P CLOTH, D FILGES, L CHEN, R IMLAY, S KARTIK, HJ KIM, RR MCNEIL, W METCALF, G CASES, L HERVAS, L LABARGA, J DELPESO, J ROLDAN, J TERRON, JF DETROCONIZ, F IKRAIAM, JK MAYER, GR SMITH, F CORRIVEAU, DJ GILKINSON, DS HANNA, LW HUNG, JW MITCHELL, PM PATEL, LE SINCLAIR, DG STAIRS, R ULLMANN, GL BASHINDZHAGYAN, PF ERMOLOV, YA GOLUBKOV, VA KUZMIN, EN KUZNETSOV, AA SAVIN, AG VORONIN, NP ZOTOV, S BENTVELSEN, A DAKE, J ENGELEN, P DEJONG, S DEJONG, M DEKAMPS, P KOOIJMAN, A KRUSE, H VANDERLUGT, V ODELL, J STRAVER, A TENNER, H TIECKE, H UIJTERWAAL, J VERMEULEN, L WIGGERS, E DEWOLF, R VANWOUDENBERG, R YOSHIDA, B BYLSMA, LS DURKIN, C LI, TY LING, KW MCLEAN, WN MURRAY, SK PARK, TA ROMANOWSKI, R SEIDLEIN, GA BLAIR, JM BUTTERWORTH, A BYRNE, RJ CASHMORE, AM COOPERSARKAR, RCE DEVENISH, DM GINGRICH, PM HALLAMBAKER, N HARNEW, T KHATRI, KR LONG, P LUFFMAN, J MCARTHUR, P MORAWITZ, J NASH, SJP SMITH, NC ROOCROFT, FF WILSON, G ABBIENDI, R BRUGNERA, R CARLIN, F DALCORSO, M DEGIORGI, U DOSSELLI, C FANIN, F GASPARINI, S LIMENTANI, M MORANDIN, M POSOCCO, J STANCO, R STROILI, C VOCI, JN LIM, BY OH, J WHITMORE, M BONORI, U CONTINO, G DAGOSTINI, M GUIDA, M IORI, S MARI, G MARINI, M MATTIOLI, D MONALDI, A NIGRO, JC HART, NA MCCUBBIN, TP SHAH, TL SHORT, E BARBERIS, N CARTIGLIA, C HEUSCH, B HUBBARD, J LESLIE, JST NG, K OSHAUGHNESSY, HF SADROZINSKI, A SEIDEN, E BADURA, J BILTZINGER, H CHAVES, M ROST, RJ SEIFERT, AH WALENTA, W WEIHS, G ZECH, S DAGAN, R HEIFETZ, A LEVY, D ZERZION, T HASEGAWA, M HAZUMI, T ISHII, S KASAI, M KUZE, Y NAGASAWA, M NAKAO, H OKUNO, K TOKUSHUKU, T WATANABE, S YAMADA, M CHIBA, R HAMATSU, T HIROSE, S KITAMURA, S NAGAYAMA, Y NAKAMITSU, M ARNEODO, M COSTA, MI FERRERO, L LAMBERTI, S MASELLI, C PERONI, A SOLANO, A STAIANO, M DARDO, DC BAILEY, D BANDYOPADHYAY, F BENARD, S BHADRA, M BRKIC, BD BUROW, FS CHLEBANA, MB CROMBIE, GF HARTNER, GM LEVMAN, JF MARTIN, RS ORR, JD PRENTICE, CR SAMPSON, GG STAIRS, RJ TEUSCHER, TS YOON, FW BULLOCK, CD CATTERALL, JC GIDDINGS, TW JONES, AM KHAN, JB LANE, PL MAKKAR, D SHAW, J SHULMAN, K BLANKENSHIP, J KOCHOCKI, B LU, LW MO, K CHARCHULA, J CIBOROWSKI, J GAJEWSKI, G GRZELAK, M KASPRZAK, M KRZYZANOWSKI, K MUCHOROWSKI, RJ NOWAK, JM PAWLAK, K STOJDA, A STOPCZYNSKI, R SZWED, T TYMIENIECKA, R WALCZAK, AK WROBLEWSKI, JA ZAKRZEWSKI, AF ZARNECKI, M ADAMUS, H ABRAMOWICZ, Y EISENBERG, C GLASMAN, U KARSHON, A MONTAG, D REVEL, EE RONAT, A SHAPIRA, I ALI, B BEHRENS, U CAMERINI, S DASU, C FORDHAM, C FOUDAS, A GOUSSIOU, M LOMPERSKI, RJ LOVELESS, P NYLANDER, M PTACEK, DD REEDER, WH SMITH, S SILVERSTEIN, WR FRISKEN, KM FURUTANI, Y IGA

Test of a prototype of the ZEUS backing calorimeter

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 300:3 (1991) 480-492

Authors:

I Kudla, RJ Nowak, R Walczak, AF Zarnecki, H Abramowicz

Measurement of the asymmetry of b quark production in e+e- annihilation at {Mathematical expression}

Zeitschrift für Physik C Particles and Fields 48:3 (1990) 433-444

Authors:

W Braunschweig, R Gerhards, FJ Kirschfink, HU Martyn, HM Fischer, H Hartmann, J Hartmann, E Hilger, A Jocksch, R Wedemeyer, B Foster, AJ Martin, E Bernardi, J Chwastowski, A Eskreys, K Genser, H Hultschig, P Joos, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, JM Pawlak, KU Pösnecker, E Ros, D Trines, R Walczak, G Wolf, H Kolanoski, J Krüger, E Lohrmann, G Poelz, W Zeuner, D Binnie, J Hassard, J Shulman, D Su, I Tomalin, A Watson, F Barreiro, G Cases, L Hervas, J del Peso, MG Bowler, PN Burrows, RJ Cashmore, ME Veitch, JC Hart, DH Saxon, S Brandt, M Holder, Y Eisenberg, U Karshon, A Montag, D Revel, E Ronat, N Wainer, A Caldwell, D Muller, S Ritz, D Strom, M Takashima, SL Wu, G Zobernig

Abstract:

The forward-backward asymmetry in the reaction e+e-→bb has been determined at centre of mass energies near 35 GeV using the TASSO detector. We report results from three different methods. The combined result of the measurements is {Mathematical expression} ignoring {Mathematical expression} mixing. Taking mixing into account leads to a corrected asymmetry of {Mathematical expression}. The axial vector coupling constant of the b quark as calculated from the corrected asymmetry is ab=-1.2±0.5 to be compared with the value abSM=-1 from the standard model. © 1990 Springer-Verlag.

Observation of laser oscillation in nitric oxide at 218 nm.

Opt Lett 15:8 (1990) 437-439

Authors:

SM Hooker, CE Webb

Abstract:

We have recently proposed a scheme to produce coherent radiation at eight or more wavelengths between 158 and 242 nm by optically pumping a high-lying electronic level of nitric oxide. We report here the successful operation of this scheme to produce laser oscillation at 218 nm. The possibility of using this scheme to produce laser oscillation at other wavelengths is discussed.

Experimental study of the orientation of three-jet events in e+e- annihilation at PETRA

Zeitschrift für Physik C Particles and Fields 47:2 (1990) 181-186

Authors:

W Braunschweig, R Gerhards, FJ Kirschfink, HU Martyn, HM Fischer, H Hartmann, J Hartmann, E Hilger, A Jocksch, R Wedemeyer, B Foster, AJ Martin, F Barreiro, E Bernardi, J Chwastowski, A Eskreys, K Gather, K Genser, H Hultschig, P Joos, J Körner, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, JM Pawlak, KU Pösnecker, E Ros, D Trines, R Walczak, G Wolf, H Kolanoski, T Kracht, J Krüger, E Lohrmann, G Poelz, W Zeuner, J Hassard, J Shulman, D Su, I Tomalin, A Watson, G Cases, L Hervas, A Leites, J del Peso, MG Bowler, PN Burrows, R Cashmore, ME Veitch, JC Hart, DH Saxon, S Brandt, M Holder, L Labarga, Y Eisenberg, U Karshon, G Mikenberg, A Montag, D Revel, E Ronat, A Shapira, N Wainer, G Yekutieli, A Caldwell, D Muller, S Ritz, D Strom, M Takashima, SL Wu, G Zobernig

Abstract:

The full TASSO data have been used to study the orientation of three-jet events in e+e- annihilation. The polar angle distributions of the normal to the three-jet plane as well as the polar angle distribution of the most energetic jet have been measured as a function of the thrust cut-off used to select the three-jet sample. The data corrected for radiation and detector effects are compared to QCD predictions and fair agreement is found. As a consistency check we also present measurements of the azimuthal correlations between the lepton and hadron planes. A significant azimuthal dependence is found, consistent again with the QCD predictions. © 1990 Springer-Verlag.