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Measurement of the charged multiplicity of Z0→bb̄ events
Authors :
ABE K ABT I ASH WW ASTON D BACCHETTA N BAIRD KG BALTAY C BAND HR BARAKAT MB BARANKO G BARDON O BATTISTON R BAZARKO AO BEAN A BELCINSKI RJ BENDAVID R BENVENUTI AC BIASINI M BIENZ T BILEI GM BISELLO D BLAYLOCK G BOGART JR BOLTON T BOWER GR BRAU JE BREIDENBACH M BUGG WM BURKE D BURNETT TH BURROWS PN BUSZA W CALCATERRA A CALDWELL DO CALLOWAY D CAMANZI B CARPINELLI, Massimo CARR J CASSELL R CASTALDI R CASTRO A CAVALLISFORZA M CHADWICK GB CHEN L CHURCH E CLAUS R COHN HO COLLER JA COOK V COTTON R COWAN RF COYLE PA COYNE DG DOLIVEIRA A DAMERELL CJS DASU S DESANGRO R DESIMONE P DESIMONE S DELLORSO R DU PYC DUBOIS R DUBOSCQ JE EISENTEIN BI ELIA R ERDOS E FAN C FARHAT B FERO MJ FREY R FRIEDMAN JI FURUNO K GALLINARO M GILLMAN A GLADDING G GONZALEZ S HALLEWELL GD HANSLKOZANECKA T HART EL HASEGAWA K HASEGAWA Y HEDGES S HERTZBACH SS HILDRETH MD HITLIN DG HONMA A HUBER J HUFFER ME HUGHES EW HWANG H IWASAKI Y IZEN JM JACQUES P JOHNSON AS JOHNSON JR JOHNSON RA JUNK T KAJIKAWA R KALELKAR M KARLINER I KAWAHARA H KELSEY MH KENDALL HW KIM HY KING ME KING R KOFLER RR KRISHNA NM KROEGER RS KWON Y LABS JF LANGSTON M LATH A LAUBER JA LEITH DWG LIU X LORETI M LU A LYNCH HL MA J MAJID WA MANCINELLI G MANLY S MANTOVANI G MARKIEWICZ TW MARUYAMA T MASUDA H MAZZUCATO E MCGOWAN JF MCHUGH S MCKEMEY AK MEADOWS BT MELLOR DJ MESSNER R MOCKETT PM MOFFEIT KC MOURS B MULLER G MULLER D NAGAMINE T NAUENBERG U NEAL H NUSSBAUM M OSBORNE LS PANVINI RS PARK H PAULUZZI M PAVEL TJ PERRIER F PERUZZI I PESCARA L PETRADZA M PICCOLO M PIEMONTESE L PIERONI E PITTS KT PLANO RJ PREPOST R PRESCOTT CY PUNKAR GD QUIGLEY J RATCLIFF BN REEVES TW RENSING PE RICHMAN JD ROCHESTER LS ROSENSON L ROTHBERG JE ROUSAKOV S ROWSON PC RUSSELL JJ SAEZ P SAXTON OH SCHALK T SCHINDLER RH SCHNEEKLOTH U SCHULTZ D SCHUMM BA SEIDEN A SEN S SERVOLI L SHAEVITZ MH SHANK JT SHAPIRO G SHAPIRO SL SHERDEN DJ SHYPIT RL SIMOPOULOS C SMITH SR SNYDER JA SOKOLOFF MD STAMER P STEINER H STEINER R STOCKDALE IE STRAUSS MG SU D SUEKANE F SUGIYAMA A SUZUKI S SWARTZ M SZUMILO A TAKAHASHI T TAYLOR FE TECCHIO M THALER JJ TOGE N TORRENCE E TURCOTTE M TURK JD USHER T VAVRA J VANNINI C VELLA E VENUTI JP VERDIER R VERDINI PG WAGNER S WAITE AP WATTS SJ WEIDEMANN AW WHITAKER JS WHITE SL WICKENS FJ WILLIAMS DA WILLIAMS DC WILLIAMS SH WILLOCQ S WILSON RJ WISNIEWSKI WJ WITHERELL MS WOODS M WORD GB WYSS J YAMAMOTO RK YAMARTINO JM YELLIN SJ YOUNG CC YUTA H ZAPALAC G ZDARKO RW ZEITLIN C ZHOU J ZOLOTOREV M ZUCCHELLI P. Abe, K Abt, I Ash, W Aston, D Bacchetta, N Baird, K Baltay, C Band, H Barakat, M Baranko, G Bardon, O Battiston, R Bazarko, A Bean, A Belcinski, R Bendavid, R Benvenuti, A Biasini, M Bienz, T Bilei, G Bisello, D Blaylock, G Bogart, J Bolton, T Bower, G Brau, J Breidenbach, M Bugg, W Burke, D Burnett, T Burrows, P Busza, W Calcaterra, A Caldwell, D Calloway, D Camanzi, B Carpinelli, M Carr, J Cassell, R Castaldi, R Castro, A Cavallisforza, M Chadwick, G Chen, L Church, E Claus, R Cohn, H Coller, J Cook, V Cotton, R Cowan, R Coyle, P Coyne, D Doliveira, A Damerell, C Dasu, S Desangro, R Desimone, P Desimone, S Dellorso, R Du, P Dubois, R Duboscq, J Eisentein, B Elia, R Erdos, E Fan, C Farhat, B Fero, M Frey, R Friedman, J Furuno, K Gallinaro, M Gillman, A Gladding, G Gonzalez, S Hallewell, G Hanslkozanecka, T Hart, E Hasegawa, K Hasegawa, Y Hedges, S Hertzbach, S Hildreth, M Hitlin, D Honma, A Huber, J Huffer, M Hughes, E Hwang, H Iwasaki, Y Izen, J Jacques, P Johnson, A Johnson, J Johnson, R Junk, T Kajikawa, R Kalelkar, M Karliner, I Kawahara, H Kelsey, M Kendall, H Kim, H King, M King, R Kofler, R Krishna, N Kroeger, R Kwon, Y Labs, J Langston, M Lath, A Lauber, J Leith, D Liu, X Loreti, M Lu, A Lynch, H Ma, J Majid, W Mancinelli, G Manly, S Mantovani, G Markiewicz, T Maruyama, T Masuda, H Mazzucato, E Mcgowan, J Mchugh, S Mckemey, A Meadows, B Mellor, D Messner, R Mockett, P Moffeit, K Mours, B Muller, G Muller, D Nagamine, T Nauenberg, U Neal, H Nussbaum, M Osborne, L Panvini, R Park, H Pauluzzi, M Pavel, T Perrier, F Peruzzi, I Pescara, L Petradza, M Piccolo, M Piemontese, L Pieroni, E Pitts, K Plano, R Prepost, R Prescott, C Punkar, G Quigley, J Ratcliff, B Reeves, T Rensing, P Richman, J Rochester, L Rosenson, L Rothberg, J Rousakov, S Rowson, P Russell, J Saez, P Saxton, O Schalk, T Schindler, R Schneekloth, U Schultz, D Schumm, B Seiden, A Sen, S Servoli, L Shaevitz, M Shank, J Shapiro, G Shapiro, S Sherden, D Shypit, R Simopoulos, C Smith, S Snyder, J Sokoloff, M Stamer, P Steiner, H Steiner, R Stockdale, I Strauss, M Su, D Suekane, F Sugiyama, A Suzuki, S Swartz, M Szumilo, A Takahashi, T Taylor, F Tecchio, M Thaler, J Toge, N Torrence, E Turcotte, M Turk, J Usher, T Vavra, J Vannini, C Vella, E Venuti, J Verdier, R Verdini, P Wagner, S Waite, A Watts, S Weidemann, A Whitaker, J White, S Wickens, F Williams, D Williams, S Willocq, S Wilson, R Wisniewski, W Witherell, M Woods, M Word, G Wyss, J Yamamoto, R Yamartino, J Yellin, S Young, C Yuta, H Zapalac, G Zdarko, R Zeitlin, C Zhou, J Zolotorev, M Zucchelli, P
Publication Year :
1994
Publisher :
American Physical Society, 1994.
Abstract
Using an impact parameter tag to select an enriched sample of Z0→bb̄ events, we have measured the difference between the average charged multiplicity of Z0→bb̄ and Z0→ hadrons to be n̄b-n̄had=2.24±0.30 (stat) ±0.33 (syst) tracks per event. From this, we have derived n̄b-n̄uds=3.31±0.41±0. 79. Comparing this measurement with those at lower center-of-mass energies, we find no evidence that n̄b-n̄uds depends on energy. This result is in agreement with a precise prediction of perturbative QCD, and supports the notion that QCD remains asymptotically free down to the scale Mb2.
Details
Language :
English
Database :
OpenAIRE
Accession number :
edsair.od......1299..c2144616f08e6b652eff1364dc5dd591