GAUGE BOSON MASSES DOMINANTLY GENERATED BY HIGGS-TRIPLET CONTRIBUTIONS

被引：27

作者：

BAMERT, P ^{[1
]}

KUNSZT, Z ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,INST THEORET PHYS,CH-8093 ZURICH,SWITZERLAND

来源：

PHYSICS LETTERS B | 1993年 / 306卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(93)90088-Y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss a model in which the Standard Model (SM) Higgs sector has been extended by additional real and complex triplets. The rho almost-equal-to 1 constraint is satisfied by restricting the potential to have an enlarged SU (2)L x SU (2)R global symmetry. This is fine tuning, which leads to a decreased predictability in next-to-leading order. In this model, however, the triplet vacuum expectation values may give the dominating contribution to the gauge boson masses. Using a renormalization group argument we constrain this region of the parameter space. Another interesting feature of this model is that one of the neutral scalars does not couple to the fermion sector at tree level and therefore could have a relatively large branching ratio to 2gamma's. It is coupled, however, to the Z-boson and therefore it could be produced at LEP via the standard e+e- --> Zphi mechanism with rates comparable to the ones of the Standard Model.

引用

页码：335 / 342

页数：8

共 19 条

[1] CONSTRAINTS ON CHARGED-HIGGS-BOSON COUPLINGS [J].

ABBOTT, LF ;

SIKIVIE, P ;

WISE, MB .

PHYSICAL REVIEW D, 1980, 21 (05) :1393-1403

[2] LIMIT ON THE TOP-QUARK MASS FROM PROTON-ANTIPROTON COLLISIONS AT ROOT-S = 1.8 TEV [J].

ABE, F ;

AMIDEI, D ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

BADEN, AR ;

BACCHETTA, N ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARNETT, BA ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BHADRA, S ;

BINKLEY, M ;

BLAIR, R ;

BLOCKER, C ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A ;

CAREY, R ;

CARITHERS, W ;

CARLSMITH, D ;

CARROLL, JT ;

CASHMORE, R ;

CASTRO, A ;

CERVELLI, F ;

CHADWICK, K ;

CHIARELLI, G .

PHYSICAL REVIEW D, 1992, 45 (11) :3921-3948

[3] RESTRICTIONS ON 2-HIGGS-DOUBLET MODELS FROM HEAVY-QUARK SYSTEMS [J].

ATHANASIU, GG ;

FRANZINI, PJ ;

GILMAN, FJ .

PHYSICAL REVIEW D, 1985, 32 (11) :3010-3019

[4] RENORMALIZATION-GROUP CONSTRAINTS IN 2-HIGGS THEORIES [J].

BAGGER, J ;

DIMOPOULOS, S ;

MASSO, E .

PHYSICS LETTERS B, 1985, 156 (5-6) :357-361

[5] HEAVY FAMILIES - MASSES AND MIXINGS [J].

BAGGER, J ;

DIMOPOULOS, S ;

MASSO, E .

NUCLEAR PHYSICS B, 1985, 253 (3-4) :397-420

[6]

BAMERT P, 1990, THESIS ETH ZURICH

[7] HIGGS BOSON TRIPLETS WITH MW = MZ COS THETAW [J].

CHANOWITZ, MS ;

GOLDEN, M .

PHYSICS LETTERS B, 1985, 165 (1-3) :105-108

[8]

DAVIER M, 1991, JUL P JOINT INT LEPT, V2, P153

[9] HIGGS TRIPLETS IN THE SUPERSYMMETRIC STANDARD MODEL [J].

ESPINOSA, JR ;

QUIROS, M .

NUCLEAR PHYSICS B, 1992, 384 (1-2) :113-146

[10] DOUBLY CHARGED HIGGS BOSONS [J].

GEORGI, H ;

MACHACEK, M .

NUCLEAR PHYSICS B, 1985, 262 (03) :463-477

← 1 2 →