Improved measurement of the left-right Z(0) cross section asymmetry

被引：42

作者：

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

机构：

[1] ADELPHI UNIV, GARDEN CITY, NY 11530 USA

[2] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[3] BOSTON UNIV, BOSTON, MA 02215 USA

[4] BRUNEL UNIV, UXBRIDGE UB8 3PH, MIDDX, ENGLAND

[5] UNIV CALIF SANTA BARBARA, SANTA BARBARA, CA 93106 USA

[6] UNIV CALIF SANTA CRUZ, SANTA CRUZ, CA 95064 USA

[7] UNIV CINCINNATI, CINCINNATI, OH 45221 USA

[8] COLORADO STATE UNIV, FT COLLINS, CO 80523 USA

[9] UNIV COLORADO, BOULDER, CO 80309 USA

[10] COLUMBIA UNIV, NEW YORK, NY 10027 USA

[11] IST NAZL FIS NUCL, I-44100 FERRARA, ITALY

[12] UNIV FERRARA, I-44100 FERRARA, ITALY

[13] IST NAZL FIS NUCL, LAB NAZL FRASCATI, I-00044 FRASCATI, ITALY

[14] UNIV ILLINOIS, URBANA, IL 61801 USA

[15] UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

[16] MIT, CAMBRIDGE, MA 02139 USA

[17] UNIV MASSACHUSETTS, AMHERST, MA 01003 USA

[18] UNIV MISSISSIPPI, UNIVERSITY, MS 38677 USA

[19] MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, MOSCOW 119899, RUSSIA

[20] UNIV OREGON, EUGENE, OR 97403 USA

[21] IST NAZL FIS NUCL, I-35100 PADUA, ITALY

[22] UNIV PADUA, I-35100 PADUA, ITALY

[23] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY

[24] UNIV PERUGIA, I-06100 PERUGIA, ITALY

[25] IST NAZL FIS NUCL, I-56100 PISA, ITALY

[26] UNIV PISA, I-56100 PISA, ITALY

[27] RUTGERS STATE UNIV, PISCATAWAY, NJ 08855 USA

[28] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[29] SOGANG UNIV, SEOUL, SOUTH KOREA

[30] SOONGSIL UNIV, SEOUL 156743, SOUTH KOREA

[31] STANFORD UNIV, STANFORD LINEAR ACCELERATOR CTR, STANFORD, CA 94309 USA

[32] UNIV TENNESSEE, KNOXVILLE, TN 37996 USA

[33] TOHOKU UNIV, SENDAI, MIYAGI 980, JAPAN

[34] VANDERBILT UNIV, NASHVILLE, TN 37235 USA

[35] UNIV WASHINGTON, SEATTLE, WA 98195 USA

[36] UNIV WISCONSIN, MADISON, WI 53706 USA

[37] YALE UNIV, NEW HAVEN, CT 06511 USA

[38] UNIV GENOA, I-16146 GENOA, ITALY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.78.2075

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new measurement of the left-right cross section asymmetry (A(LR)) for Z boson production by e(+)e(-) collisions. The measurement was performed at a center-of-mass energy of 91.28 GeV with the SLD detector at the SLAC Linear Collider (SLC), The luminosity-weighted average polarization of the SLC electron beam was (77.23 +/- 0.52)%. Using a sample of 93644 Z decays, we measure the pole value of the asymmetry, A(LR)(0), to be 0.1512 +/- 0.0042(stat) +/- 0.0011(syst). which is equivalent to an effective weak mixing angle of sin(2) theta(W)(eff) = 0.23100 +/- 0.00054(stat) +/- 0.00014(syst).

引用

页码：2075 / 2079

页数：5

共 21 条

[1] OBSERVATION OF THE TOP-QUARK [J].

ABACHI, S ;

ABBOTT, B ;

ABOLINS, M ;

ACHARYA, BS ;

ADAM, I ;

ADAMS, DL ;

ADAMS, M ;

AHN, S ;

AIHARA, H ;

ALITTI, J ;

ALVAREZ, G ;

ALVES, GA ;

AMIDI, E ;

AMOS, N ;

ANDERSON, EW ;

ARONSON, SH ;

ASTUR, R ;

AVERY, RE ;

BADEN, A ;

BALAMURALI, V ;

BALDERSTON, J ;

BALDIN, B ;

BANTLY, J ;

BARTLETT, JF ;

BAZIZI, K ;

BENDICH, J ;

BERI, SB ;

BERTRAM, I ;

BEZZUBOV, VA ;

BHAT, PC ;

BHATNAGAR, V ;

BHATTACHARJEE, M ;

BISCHOFF, A ;

BISWAS, N ;

BLAZEY, G ;

BLESSING, S ;

BOEHNLEIN, A ;

BOJKO, NI ;

BORCHERDING, F ;

BORDERS, J ;

BOSWELL, C ;

BRANDT, A ;

BROCK, R ;

BROSS, A ;

BUCHHOLZ, D ;

BURTOVOI, VS ;

BUTLER, JM ;

CASEY, D ;

CASTILLAVALDEZ, H ;

CHAKRABORTY, D .

PHYSICAL REVIEW LETTERS, 1995, 74 (14) :2632-2637

[2] NEARBY DOORWAY STATES, PARITY DOUBLETS, AND PARITY MIXING IN COMPOUND NUCLEAR-STATES [J].

AUERBACH, N ;

BOWMAN, JD ;

SPEVAK, V .

PHYSICAL REVIEW LETTERS, 1995, 74 (14) :2638-2641

[3] CHARGE-EXCHANGE REACTIONS AND THE EFFICIENCY OF SOLAR-NEUTRINO DETECTORS [J].

AUSTIN, SM ;

ANANTARAMAN, N ;

LOVE, WG .

PHYSICAL REVIEW LETTERS, 1994, 73 (01) :30-33

[4] 1ST MEASUREMENT OF THE LEFT-RIGHT CROSS-SECTION ASYMMETRY IN Z-BOSON PRODUCTION BY E+E- COLLISIONS [J].

ABE, K ;

ABT, I ;

ACTON, PD ;

ADOLPHSEN, CE ;

AGNEW, G ;

ALBER, C ;

ALZOFON, DF ;

ANTILOGUS, P ;

ARROYO, C ;

ASH, WW ;

ASHFORD, V ;

ASTBURY, A ;

ASTON, D ;

AU, Y ;

AXEN, DA ;

BACCHETTA, N ;

BAIRD, KG ;

BAKER, W ;

BALTAY, C ;

BAND, HR ;

BARANKO, G ;

BARDON, O ;

BARRERA, F ;

BATTISTON, R ;

BAZARKO, AO ;

BEAN, A ;

BEER, G ;

BELCINSKI, RJ ;

BELL, RA ;

BENDAVID, R ;

BENVENUTI, AC ;

BERGER, R ;

BERRIDGE, SC ;

BETHKE, S ;

BIASINI, M ;

BIENZ, T ;

BILEI, GM ;

BIRD, F ;

BISELLO, D ;

BLAYLOCK, G ;

BLUMBERG, R ;

BOGART, JR ;

BOLTON, T ;

BOUGEROLLE, S ;

BOWER, GR ;

BOYCE, RF ;

BRAU, JE ;

BREIDENBACH, M ;

BROWDER, TE ;

BUGG, WM .

PHYSICAL REVIEW LETTERS, 1993, 70 (17) :2515-2520

[5]

ALLEY R, 1995, NUCL INSTRUM METHODS, V265, P1

[6] THE LEAD LIQUID ARGON SAMPLING CALORIMETER OF THE SLD DETECTOR [J].

AXEN, D ;

BOUGEROLLE, S ;

SOBIE, R ;

EIGEN, G ;

DEJONGH, F ;

HITLIN, D ;

KELSEY, M ;

KLEIN, M ;

MINCER, A ;

WISNIEWSKI, W ;

WOLF, R ;

ARROYO, C ;

AU, Y ;

BALTAY, C ;

BOLTON, T ;

BAZARKO, A ;

CAMILLERI, L ;

HYATT, E ;

MANLY, S ;

RABINOWITZ, S ;

ROWSON, PC ;

SELIGMAN, S ;

SHAEVITZ, MH ;

SMITH, S ;

STEINER, RV ;

ABT, I ;

ALZOFON, D ;

ARNETT, D ;

BARRERA, F ;

BELL, R ;

BES, SC ;

BOGART, J ;

BREIDENBACH, M ;

CANDIA, A ;

CLAUS, R ;

CUTLER, H ;

DAVIS, R ;

DUBOIS, R ;

FOSS, M ;

FOX, J ;

FOX, M ;

GIOUMOUSIS, A ;

GREBENYUK, A ;

HALLER, G ;

HAMILTON, V ;

HODGSON, J ;

HUFFER, M ;

JUNK, T ;

KIM, P ;

LABS, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 328 (03) :472-494

[7]

BARDIN D, 1992, CERNTH644392

[8]

BLONDEL A, 1997, P 28 INT C HIGH EN P

[9]

CHEN P, 1989, P 8 INT S HIGH EN SP, P938

[10]

DECAMP D, 1992, PHYS LETT B, V276, P247, DOI 10.1016/0370-2693(92)90572-L

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