Improved direct measurement of the parity-violation parameter Ab using a mass tag and momentum-weighted track charge.

نویسندگان

  • Kenji Abe
  • Koya Abe
  • T Abe
  • I Adam
  • H Akimoto
  • D Aston
  • K G Baird
  • C Baltay
  • H R Band
  • T L Barklow
  • J M Bauer
  • G Bellodi
  • R Berger
  • G Blaylock
  • J R Bogart
  • G R Bower
  • J E Brau
  • M Breidenbach
  • W M Bugg
  • D Burke
  • T H Burnett
  • P N Burrows
  • A Calcaterra
  • R Cassell
  • A Chou
  • H O Cohn
  • J A Coller
  • M R Convery
  • V Cook
  • R F Cowan
  • G Crawford
  • C J S Damerell
  • M Daoudi
  • N de Groot
  • R de Sangro
  • D N Dong
  • M Doser
  • R Dubois
  • I Erofeeva
  • V Eschenburg
  • S Fahey
  • D Falciai
  • J P Fernandez
  • K Flood
  • R Frey
  • E L Hart
  • K Hasuko
  • S S Hertzbach
  • M E Huffer
  • X Huynh
  • M Iwasaki
  • D J Jackson
  • P Jacques
  • J A Jaros
  • Z Y Jiang
  • A S Johnson
  • J R Johnson
  • R Kajikawa
  • M Kalelkar
  • H J Kang
  • R R Kofler
  • R S Kroeger
  • M Langston
  • D W G Leith
  • V Lia
  • C Lin
  • G Mancinelli
  • S Manly
  • G Mantovani
  • T W Markiewicz
  • T Maruyama
  • A K McKemey
  • R Messner
  • K C Moffeit
  • T B Moore
  • M Morii
  • D Muller
  • V Murzin
  • S Narita
  • U Nauenberg
  • H Neal
  • G Nesom
  • N Oishi
  • D Onoprienko
  • L S Osborne
  • R S Panvini
  • C H Park
  • I Peruzzi
  • M Piccolo
  • L Piemontese
  • R J Plano
  • R Prepost
  • C Y Prescott
  • B N Ratcliff
  • J Reidy
  • P L Reinertsen
  • L S Rochester
  • P C Rowson
  • J J Russell
  • O H Saxton
  • T Schalk
  • B A Schumm
  • J Schwiening
  • V V Serbo
  • G Shapiro
  • N B Sinev
  • J A Snyder
  • H Staengle
  • A Stahl
  • P Stamer
  • H Steiner
  • D Su
  • F Suekane
  • A Sugiyama
  • S Suzuki
  • M Swartz
  • F E Taylor
  • J Thom
  • E Torrence
  • T Usher
  • J Va'vra
  • R Verdier
  • D L Wagner
  • A P Waite
  • S Walston
  • A W Weidemann
  • E R Weiss
  • J S Whitaker
  • S H Williams
  • S Willocq
  • R J Wilson
  • W J Wisniewski
  • J L Wittlin
  • M Woods
  • T R Wright
  • R K Yamamoto
  • J Yashima
  • S J Yellin
  • C C Young
  • H Yuta
چکیده

We present an improved direct measurement of the parity-violation parameter A(b) in the Z boson-b-quark coupling using a self-calibrating track-charge technique applied to a sample enriched in Z-->bb events via the topological reconstruction of the B hadron mass. Manipulation of the Stanford Linear Collider electron-beam polarization permits the measurement of A(b) to be made independently of other Z-pole coupling parameters. From the 1996-1998 sample of 400,000 hadronic Z decays, produced with an average beam polarization of 73.4%, we find A(b)=0.906+/-0.022(stat)+/-0.023(syst).

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منابع مشابه

Improved Direct Measurement of the Parity-Violation Parameter Ab Using a Mass Tag and Momentum-Weighted Track Charge

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عنوان ژورنال:
  • Physical review letters

دوره 90 14  شماره 

صفحات  -

تاریخ انتشار 2003