ITA
ENG

High-precision measurement of the left-right Z boson cross-section asymmetry

Authors

Abe, K Abe, K Abe, T Adam, I Akimoto, H Aston, D Baird, KG Baltay, C Band, HR Barklow, TL Bauer, JM Bellodi, G Berger, R Blaylock, G Bogart, JR Bower, GR Brau, JE Breidenbach, M Bugg, WM Burke, D Burnett, TH Burrows, PN Calcaterra, A Cassell, R Chou, A Cohn, HO Coller, JA Convery, MR Cook, V Cowan, RF Crawford, G Damerell, CJS Daoudi, M Dasu, S de Groot, N de Sangro, R Dong, DN Doser, M Dubois, R Erofeeva, I Eschenburg, V Etzion, E Fahey, S Faiciai, D Fernandez, JP Fero, MJ Flood, K Frey, R Hart, EL Hasuko, K Hertzbach, SS Huffer, ME Huynh, X Iwasaki, M Jackson, DJ Jacques, P Jaros, JA Jiang, ZY Johnson, AS Johnson, JR Kajikawa, R Kang, HJ Kalelkar, M Kofler, RR Kroeger, RS Langston, M Leith, DWG Lia, V Lin, C Mancinelli, G Manly, S Mantovani, G Markiewicz, TW Maruyama, T McKemey, AK Messner, R Moffeit, KC Moore, TB Morii, M Muller, D Murzin, V Narita, S Nauenberg, U Neal, H Nesom, G Oishi, N Onoprienko, D Osborne, LS Panvini, RS Park, CH Peruzzi, I Piccolo, M Piemontese, L Plano, RJ Prepost, R Prescott, CY Ratcliff, BN Reidy, J Reinertsen, PL Rochester, LS Rowson, PC Russell, JJ Saxton, OH Schalk, T Schumm, BA Schwiening, J Serbo, VV Shapiro, G Sinev, NB Snyder, JA Staengle, H Stahl, A Stamer, P Steiner, H Su, D Suekane, F Sugiyama, A Swartz, M Taylor, FE Thom, J Torrence, E Usher, T Va'vra, J Verdier, R Wagner, DL Waite, AP Walston, S Wang, J Weidemann, AW Weiss, ER Whitaker, JS Williams, SH Willocq, S Wilson, RJ Wisniewski, WJ Wittlin, JL Woods, M Wright, TR Yamamoto, RK Yashima, J Yellin, SJ Young, CC Yuta, H

Citation

K. Abe et al., High-precision measurement of the left-right Z boson cross-section asymmetry, PHYS REV L, 84(26), 2000, pp. 5945-5949

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW LETTERS

ISSN journal

00319007 → ACNP

Volume

Issue

Year of publication

2000

Pages

5945 - 5949

Database

ISI

SICI code

0031-9007(20000626)84:26<5945:HMOTLZ>2.0.ZU;2-I

Abstract

We present a measurement of the left-right cross-section asymmetry (A(LR)) for Z boson production by e(+) e(-) collisions. The measurement includes th e final data taken with the SLD detector at the SLAC Linear Collider during the period 1996-1998. Using a sample of 383 487 Z decays collected during the 1996-1998 runs-we measure the pole value of the asymmetry, A(LR)(0), to be 0.150 56 +/- 0.002 39 which is equivalent to an effective weak mixing a ngle of sin(2)theta(W)(eff) = 0.231 07 +/- 0.000 30. Our result for the com plete 1992-1998 data set comprising approximately 537 000 Z decays is sin(2 )theta(W)(eff) = 0.230 97 +/- 0.000 27.