CHIRAL LAGRANGIANS AS A TOOL TO PROBE THE SYMMETRY-BREAKING SECTOR OF THE SM AT LEP

被引：139

作者：

DOBADO, A

ESPRIU, D

HERRERO, MJ

机构：

[1] CERN

来源：

PHYSICS LETTERS B | 1991年 / 255卷 / 03期

关键词：

D O I：

10.1016/0370-2693(91)90786-P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An effective SU(2)L X U(1)Y invariant chiral lagrangian can accommodate any symmetry breaking scheme in the standard model. It is shown that all process-independent quantities relevant to LEP precision measurements (DELTA-rho, DELTA-K and DELTA-r) depend only on one coefficient of the weak chiral lagrangian, taking different values depending on the precise symmetry breaking scheme. We remove any ambiguity due to the use of an effective theory by a careful choice of observables and make definite predictions that can be tested in the foreseeable future. Our analysis complements nicely that of longitudinal W and Z scattering.

引用

页码：405 / 414

页数：10

共 28 条

[1] SEARCH FOR THE TOP QUARK IN THE REACTION PBARP-] ELECTRON+JETS AT SQUARE-ROOT S=1.8 TEV [J].

ABE, F ;

AMIDEI, D ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

BADEN, AR ;

BAMBERGER, A ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BHADRA, S ;

BINKLEY, M ;

BLAIR, R ;

BLOCKER, C ;

BOOTH, AW ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEY, E ;

BYON, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CAREY, R ;

CARITHERS, W ;

CARLSMITH, D ;

CARROLL, JT ;

CASHMORE, R ;

CERVELLI, F ;

CHADWICK, K ;

CHIARELLI, G ;

CHINOWSKY, W ;

CIHANGIR, S ;

CLARK, AG ;

CONNOR, D ;

CONTRERAS, M ;

COOPER, J ;

CORDELLI, M ;

CRANE, D ;

CURATOLO, M ;

DAY, C ;

DELLAGNELLO, S ;

DELLORSO, M .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :142-146

[2]

ALTARELLI G, 1988, POLARIZATION LEP

[3] STRONGLY INTERACTING HIGGS BOSONS [J].

APPELQUIST, T ;

BERNARD, C .

PHYSICAL REVIEW D, 1980, 22 (01) :200-213

[4]

BAILEY R, CERN SL9095AP PREPR

[5]

BURGERS G, 1988, POLARIZAION LEP

[6]

BURGERS G, 1989, Z PHYSICS LEP 1

[7] EFFECTIVE ACTION FOR THE STANDARD MODEL WITH LARGE HIGGS MASS [J].

CHEYETTE, O .

NUCLEAR PHYSICS B, 1988, 297 (01) :183-204

[8] THE EFFECTIVE ONE-LOOP ACTION IN THE STRONGLY INTERACTING STANDARD ELECTROWEAK THEORY [J].

CHEYETTE, O ;

GAILLARD, MK .

PHYSICS LETTERS B, 1987, 197 (1-2) :205-212

[9]

CONSOLI M, 1989, Z PHYSICS LEP 1

[10]

DECAMP D, CERNPPE90104 PREPR

← 1 2 3 →