FIRST MEASUREMENT OF THE LEFT-RIGHT CHARGE ASYMMETRY IN HADRONIC Z-BOSON DECAYS AND A NEW DETERMINATION OF SIN(2)O(W)(EFF)

Authors
ABE K ABE K ABT I AKAGI T ALLEN NJ ASH WW ASTON D BAIRD KG BALTAY C BAND HR BARAKAT MB BARANKO G BARDON O BARKLOW TL BASHINDZHAGYAN GL BAZARKO AO BENDAVID R BENVENUTI AC BILEI GM BISELLO D BLAYLOCK G BOGART JR BOLEN B 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 M CASSELL R CASTALDI R CASTRO A CAVALLISFORZA M CHOU A CHURCH E COHN HO COLLER JA COOK V COTTON R COWAN RF COYNE DG CRAWFORD G DOLIVEIRA A DAMERELL CJS DAOUDI M DESANGRO R DELLORSO R DERVAN PJ DIMA M DONG DN DU PYC DUBOIS R EISENSTEIN BI ELIA R ETZION E FAHEY S FALCIAI D FAN C FERO MJ FREY R FURUNO K GILLMAN T GLADDING G GONZALEZ S HALLEWELL GD HART EL HARTON JL HASAN A HASEGAWA Y HASUKO K HEDGES S HERTZBACH SS HILDRETH MD HUBER J HUFFER ME HUGHES EW HWANG H IWASAKI Y JACKSON DJ JACQUES P JAROS JA JOHNSON AS JOHNSON JR JOHNSON RA JUNK T KAJIKAWA R KALELKAR M KANG HJ KARLINER I KAWAHARA H KENDALL HW KIM YD KING ME KING R KOFLER RR KRISHNA NM KROEGER RS LABS JF LANGSTON M LATH A LAUBER JA LEITH DWGS LIA V LIU MX LIU X LORETI M LU A LYNCH HL MA J MANCINELLI G MANLY S MANTOVANI G MARKIEWICZ TW MARUYAMA T MASUDA H MAZZUCATO E MCKEMEY AK MEADOWS BT MESSNER R MOCKETT PM MOFFEIT KC MOORE TB MULLER D NAGAMINE T NARITA S NAUENBERG U NEAL H NUSSBAUM M OHNISHI Y OSBORNE LS PANVINI RS PARK CH PARK H PAVEL TJ PERUZZI I PICCOLO M PIEMONTESE L PIERONI E PITTS KT PLANO RJ PREPOST R PRESCOTT CY PUNKAR GD QUIGLEY J RATCLIFF BN REEVES TW REIDY J REINERTSEN PL RENSING PE ROCHESTER LS ROWSON PC RUSSELL JJ SAXTON OH SCHALK T SCHINDLER RH SCHUMM BA SEN S SERBO VV SHAEVITZ MH SHANK JT SHAPIRO G SHERDEN DJ SHMAKOV KD SIMOPOULOS C SINEV NB SMITH SR SMY MB SNYDER JA STAMER P STEINER H STEINER R STRAUSS MG SU D SUEKANE F SUGIYAMA A SUZUKI S SWARTZ M SZUMILO A TAKAHASHI T TAYLOR FE TORRENCE E TRANDAFIR AI TURK JD USHER T VAVRA J VANNINI C VELLA E VENUTI JP VERDIER R VERDINI PG WAGNER DL WAGNER SR WAITE AP WATTS SJ WEIDEMANN AW WEISS ER WHITAKER JS WHITE SL WICKENS FJ WILLIAMS DA WILLIAMS DC WILLIAMS SH WILLOCQ S WILSON RJ WISNIEWSKI WJ WOODS M WORD GB WYSS J YAMAMOTO RK YAMARTINO JM YANG X YELLIN SJ YOUNG CC YUTA H ZAPALAC G ZDARKO RW ZHOU J
Citation
K. Abe et al., FIRST MEASUREMENT OF THE LEFT-RIGHT CHARGE ASYMMETRY IN HADRONIC Z-BOSON DECAYS AND A NEW DETERMINATION OF SIN(2)O(W)(EFF), Physical review letters, 78(1), 1997, pp. 17-21
Citations number
12
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
1
Year of publication
1997
Pages
17 - 21
Database
ISI
SICI code
0031-9007(1997)78:1<17:FMOTLC>2.0.ZU;2-H
Abstract
We present the first measurement of the left-right charge asymmetry A( Q)(obs) in hadronic Z boson decays. This was performed at E(c.m.) = 91 .27 GeV with the SLD at the SLAG Linear Collider with a polarized elec tron beam. Using 89 838 events we obtain A(Q)(obs) = 0.225 +/- 0.056 /- 0.019, which leads to a measurement of the electron left-right asym metry parameter. A(e) = 0.162 +/- 0.041 +/- 0.014, and sin(2) theta(W) (eff) = 0.2297 +/- 0.0052 +/- 0.0018, Also, the Ag measurement combine d with the left-right cross section asymmetry determines A(e) independ ent of the value of the electron-beam polarization.