STRONG-COUPLING, UNIFICATION, AND RECENT DATA

被引：127

作者：

LANGACKER, P

POLONSKY, N

机构：

[1] Department of Physics, University of Pennsylvania, Philadelphia

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.52.3081

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The prediction of strong coupling assuming (supersymmetric) coupling constant unification is reexamined. We find, using the new electroweak data, alpha(s)(M(z)) approximate to 0.129 +/- 0.010. The implications of the large alpha(s) value are discussed. The role played by the Z b quark width is stressed. It is also emphasized that high-energy (but not low-energy) corrections could significantly diminish the prediction. However, unless higher-dimension operators are assumed to be suppressed, at present one cannot place strong constraints on the superheavy spectrum. Nonleading electroweak threshold corrections are also discussed.

引用

页码：3081 / 3086

页数：6

共 80 条

[1] EVIDENCE FOR TOP-QUARK PRODUCTION IN P(OVER-BAR)-P COLLISIONS AT ROOT=1.8-TEV [J].

ABE, F ;

ALBROW, MG ;

AMENDOLIA, SR ;

AMIDEI, D ;

ANTOS, J ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ARETI, H ;

AUCHINCLOSS, P ;

AUSTERN, M ;

AZFAR, F ;

AZZI, P ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAO, J ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BARTALINI, P ;

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 ;

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 ;

BUCKLEYGEER, E ;

BUDD, HS .

PHYSICAL REVIEW LETTERS, 1994, 73 (02) :225-231

[2] THE MINIMAL SUPERSYMMETRIC STANDARD MODEL AND ELECTROWEAK PRECISION DATA [J].

ALTARELLI, G ;

BARBIERI, R ;

CARAVAGLIOS, F .

PHYSICS LETTERS B, 1993, 314 (3-4) :357-363

[3] COMPREHENSIVE ANALYSIS OF DATA PERTAINING TO THE WEAK NEUTRAL CURRENT AND THE INTERMEDIATE-VECTOR-BOSON MASSES [J].

AMALDI, U ;

BOHM, A ;

DURKIN, LS ;

LANGACKER, P ;

MANN, AK ;

MARCIANO, WJ ;

SIRLIN, A ;

WILLIAMS, HH .

PHYSICAL REVIEW D, 1987, 36 (05) :1385-1407

[4] COMPARISON OF GRAND UNIFIED THEORIES WITH ELECTROWEAK AND STRONG COUPLING-CONSTANTS MEASURED AT LEP [J].

AMALDI, U ;

DEBOER, W ;

FURSTENAU, H .

PHYSICS LETTERS B, 1991, 260 (3-4) :447-455

[5] CONSISTENCY CHECKS OF GRAND UNIFIED THEORIES [J].

AMALDI, U ;

DEBOER, W ;

FRAMPTON, PH ;

FURSTENAU, H ;

LIU, JT .

PHYSICS LETTERS B, 1992, 281 (3-4) :374-382

[6] THE EFFECTIVE EXPERIMENTAL CONSTRAINTS ON MU-SUSY AND MU-GUT [J].

ANSELMO, F ;

CIFARELLI, L ;

PETERMAN, A ;

ZICHICHI, A .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1991, 104 (12) :1817-1834

[7] THE PRICE OF DERIVING THE STANDARD MODEL FROM THE STRING [J].

ANTONIADIS, I ;

ELLIS, J ;

KELLEY, S ;

NANOPOULOS, DV .

PHYSICS LETTERS B, 1991, 272 (1-2) :31-35

[8] SUPERSYMMETRIC MASS-SPECTRUM IN SU(5) SUPERGRAVITY GRAND UNIFICATION [J].

ARNOWITT, R ;

NATH, P .

PHYSICAL REVIEW LETTERS, 1992, 69 (05) :725-728

[9] PRECISION CORRECTIONS TO SUPERSYMMETRIC UNIFICATION [J].

BAGGER, J ;

MATCHEV, K ;

PIERCE, D .

PHYSICS LETTERS B, 1995, 348 (3-4) :443-450

[10]

BARBIERI R, 1994, IFUPTH4794 PIS REP

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