Limits on quark-lepton compositeness scales from dileptons produced in 1.8 TeV p(p)over-bar collisions

被引：90

作者：

Abe, F

Akimoto, H

Akopian, A

Albrow, MG

Amendolia, SR

Amidei, D

Antos, J

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

Barone, M

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

Bettelli, S

Bevensee, B

Bhatti, A

Biery, K

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bodek, A

Bokhari, W

机构：

[1] UNIV BOLOGNA,IST NAZL FIS NUCL,I-40127 BOLOGNA,ITALY

[2] BRANDEIS UNIV,WALTHAM,MA 02254

[3] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90095

[4] UNIV CHICAGO,CHICAGO,IL 60637

[5] DUKE UNIV,DURHAM,NC 27708

[6] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[7] UNIV FLORIDA,GAINESVILLE,FL 32611

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

[9] UNIV GENEVA,CH-1211 GENEVA 4,SWITZERLAND

[10] HARVARD UNIV,CAMBRIDGE 02138,ENGLAND

[11] HIROSHIMA UNIV,HIGASHIHIROSHIMA 739,JAPAN

[12] UNIV ILLINOIS,URBANA,IL 61801

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

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

[15] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218

[16] UNIV KARLSRUHE,INST EXPT KERNPHYS,D-76128 KARLSRUHE,GERMANY

[17] NATL LAB HIGH ENERGY PHYS,KEK,TSUKUBA,IBARAKI 305,JAPAN

[18] ERNEST ORLANDO LAWRENCE BERKELEY NATL LAB,BERKELEY,CA 94720

[19] MIT,CAMBRIDGE,MA 02139

[20] UNIV MICHIGAN,ANN ARBOR,MI 48109

[21] MICHIGAN STATE UNIV,E LANSING,MI 48824

[22] UNIV NEW MEXICO,ALBUQUERQUE,NM 87131

[23] OHIO STATE UNIV,COLUMBUS,OH 43210

[24] OSAKA CITY UNIV,OSAKA 558,JAPAN

[25] UNIV PADUA,IST NAZL FIS NUCL,SEZINE PADOVA,I-35131 PADUA,ITALY

[26] UNIV PENN,PHILADELPHIA,PA 19104

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

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

[29] UNIV PITTSBURGH,PITTSBURGH,PA 15260

[30] PURDUE UNIV,W LAFAYETTE,IN 47907

[31] UNIV ROCHESTER,ROCHESTER,NY 14627

[32] ROCKEFELLER UNIV,NEW YORK,NY 10021

[33] RUTGERS STATE UNIV,PISCATAWAY,NJ 08855

[34] ACAD SINICA,TAIPEI 11529,TAIWAN

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

[36] TEXAS TECH UNIV,LUBBOCK,TX 79409

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

[38] TUFTS UNIV,MEDFORD,MA 02155

[39] UNIV WISCONSIN,MADISON,WI 53706

[40] YALE UNIV,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.79.2198

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dilepton mass spectrum in p (p) over bar --> l(+)l(-) + X interactions is studied using dielectrons (ee) and dimuons (mu mu) in 110 pb(-1) of data collected with the Collider Detector at Fermilab. The data are consistent with standard model predictions. The mass spectrum, being a probe for new physics, is examined for new interactions of quarks and leptons from a common composite structure. Assuming a contact interaction with the conventional coupling g(0)(2)/4 pi = 1 limits on chiral quark-electron and quark-muon compositeness scales in the range of 2.5 to 4.2 TeV are obtained.

引用

页码：2198 / 2203

页数：6

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