SEARCH FOR QUARK COMPOSITENESS, AXIGLUONS, AND HEAVY-PARTICLES USING THE DIJET INVARIANT MASS-SPECTRUM OBSERVED IN P(P)OVER-BAR COLLISIONS

被引:31
作者
ABE, F
ALBROW, M
AKIMOTO, H
AMIDEI, D
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AZFAR, F
AZZI, P
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAO, J
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BENTON, D
BERETVAS, A
BERGE, JP
BERTOLUCCI, S
BHATTI, A
BIERY, K
BINKLEY, M
BIRD, F
BISELLO, D
BLAIR, RE
BLOCKER, C
BODEK, A
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BROMBERG, C
BUCKLEYGEER, E
BUDD, HS
BURKETT, K
BUSETTO, G
BYONWAGNER, A
机构
[1] PURDUE UNIV,W LAFAYETTE,IN 47907
[2] BRANDEIS UNIV,WALTHAM,MA 02254
[3] UNIV ROCHESTER,ROCHESTER,NY 14627
[4] UNIV BOLOGNA,IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY
[5] ROCKEFELLER UNIV,NEW YORK,NY 10021
[6] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024
[7] RUTGERS UNIV,PISCATAWAY,NJ 08854
[8] UNIV CHICAGO,CHICAGO,IL 60637
[9] DUKE UNIV,DURHAM,NC 27708
[10] TEXAS A&M UNIV SYST,COLL STN,TX 77843
[11] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510
[12] UNIV WISCONSIN,MADISON,WI 53706
[13] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY
[14] HARVARD UNIV,CAMBRIDGE,MA 02138
[15] UNIV ILLINOIS,URBANA,IL 61801
[16] MCGILL UNIV,INST PARTICLE PHYS,MONTREAL H3A 2T8,QUEBEC,CANADA
[17] UNIV TORONTO,TORONTO M5S 1A7,ONTARIO,CANADA
[18] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218
[19] KEK,NATL LAB HIGH ENERGY PHYS,TSUKUBA,IBARAKI 305,JAPAN
[20] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
[21] MIT,CAMBRIDGE,MA 02139
[22] UNIV MICHIGAN,ANN ARBOR,MI 48109
[23] MICHIGAN STATE UNIV,E LANSING,MI 48824
[24] UNIV NEW MEXICO,ALBUQUERQUE,NM 87131
[25] OSAKA CITY UNIV,OSAKA 588,JAPAN
[26] UNIV PADUA,IST NAZL FIS NUCL,I-35131 PADUA,ITALY
[27] UNIV PENN,PHILADELPHIA,PA 19104
[28] UNIV PITTSBURGH,PITTSBURGH,PA 15260
[29] UNIV PISA,IST NAZL FIS NUCL,I-56100 PISA,ITALY
[30] SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY
[31] SUPERCOND SUPER COLLIDER LAB,DALLAS,TX 75237
[32] UNIV TSUKUBA,TSUKUBA,IBARAKI 305,JAPAN
[33] TUFTS UNIV,MEDFORD,MA 02155
[34] YALE UNIV,NEW HAVEN,CT 06511
关键词
D O I
10.1103/PhysRevLett.71.2542
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The dijet invariant mass distribution has been measured in the region between 140 and 1000 GeV/c2, in 1.8 TeV ppBAR collisions. Data collected with the Collider Detector at Fermilab show agreement with QCD calculations. A limit on quark compositeness of LAMBDA(c) > 1.3 TeV is obtained. Axigluons with masses between 240 and 640 GeV/c2 are excluded at 95% C.L. if we assume ten open decay channels. Model-independent limits on the production of heavy particles decaying into two jets are also presented.
引用
收藏
页码:2542 / 2546
页数:5
相关论文
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