Forward-backward charge asymmetry of electron Paris above the Z(0) pole

被引：17

作者：

Abe, F

Akimoto, H

Akopian, A

Albrow, MG

Amendolia, SR

Amidei, D

Antos, J

AnwayWiese, C

Aota, S

Apollinari, G

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

AzziBacchetta, P

Bacchetta, N

Badgett, W

Bagdasarov, S

Bailey, MW

Bao, J

deBarbaro, P

BarbaroGaltieri, A

Barnes, VE

Barnett, BA

Barzi, E

Bauer, G

Baumann, T

Bedeschi, F

Behrends, S

Belforte, S

Bellettini, G

Bellinger, J

Benjamin, D

Benlloch, J

Bensinger, J

Benton, D

Beretvas, A

Berge, JP

Berryhill, J

Bertolucci, S

Bhatti, A

Biery, K

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bodek, A

Bokhari, W

Bolognesi, V

Bortoletto, D

机构：

[1] ARGONNE NATL LAB, ARGONNE, IL 60439 USA

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

[3] BRANDEIS UNIV, WALTHAM, MA 02254 USA

[4] UNIV CALIF LOS ANGELES, LOS ANGELES, CA 90024 USA

[5] UNIV CHICAGO, CHICAGO, IL 60637 USA

[6] DUKE UNIV, DURHAM, NC 27708 USA

[7] FERMILAB NATL ACCELERATOR LAB, BATAVIA, IL 60510 USA

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

[9] HARVARD UNIV, CAMBRIDGE, MA 02138 USA

[10] HIROSHIMA UNIV, HIGASHIHIROSHIMA 724, JAPAN

[11] UNIV ILLINOIS, URBANA, IL 61801 USA

[12] MCGILL UNIV, INST PARTICLE PHYS, MONTREAL, PQ H3A 2T8, CANADA

[13] UNIV TORONTO, TORONTO, ON M5S 1A7, CANADA

[14] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA

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

[16] MIT, CAMBRIDGE, MA 02139 USA

[17] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA

[18] MICHIGAN STATE UNIV, E LANSING, MI 48824 USA

[19] UNIV NEW MEXICO, ALBUQUERQUE, NM 87131 USA

[20] OSAKA CITY UNIV, OSAKA 588, JAPAN

[21] UNIV PADUA, IST NAZL FIS NUCL, I-35131 PADUA, ITALY

[22] UNIV PENN, PHILADELPHIA, PA 19104 USA

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

[24] SCUOLA NORMALE SUPER PISA, I-56100 PISA, ITALY

[25] UNIV PITTSBURGH, PITTSBURGH, PA 15260 USA

[26] PURDUE UNIV, W LAFAYETTE, IN 47907 USA

[27] UNIV ROCHESTER, ROCHESTER, NY 14627 USA

[28] ROCKEFELLER UNIV, NEW YORK, NY 10021 USA

[29] RUTGERS STATE UNIV, PISCATAWAY, NJ 08854 USA

[30] ACAD SINICA, TAIPEI 11529, TAIWAN

[31] TEXAS A&M UNIV, COLLEGE STN, TX 77843 USA

[32] TEXAS TECH UNIV, LUBBOCK, TX 79409 USA

[33] UNIV TSUKUBA, TSUKUBA, IBARAKI 305, JAPAN

[34] TUFTS UNIV, MEDFORD, MA 02155 USA

[35] UNIV WISCONSIN, MADISON, WI 53706 USA

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

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.77.2616

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a measurement of the forward-backward charge asymmetry of the process p (p) over bar --> Z(0)/gamma + X, Z(0)/gamma --> e(+)e(-) at M(ee) > M(Z), using 110 pb(-1) of data at root s = 1.8 TeV collected at the Collider Detector at Fermilab. The measured charge asymmetries are 0.43 +/- 0.10 in the invariant mass region M(ee) > 105 GeV/c(2), and 0.070 +/- 0.016 in the region 75 < M(ee) < 105 GeV/c(2). These results are consistent with the standard model values of 0.528 +/- 0.009 and 0.052 +/- 0.002, respectively.

引用

页码：2616 / 2621

页数：6

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