GRAND UNIFIED SUPERSYMMETRIC HIGGS BOSONS AS PSEUDO-GOLDSTONE PARTICLES

被引:55
作者
BARBIERI, R
DVALI, G
STRUMIA, A
机构
[1] INFN, I-56100 PISA, ITALY
[2] UNIV PISA, DIPARTIMENTO FIS, I-56100 PISA, ITALY
[3] GEORGIAN ACAD SCI, TBILISI, GEORGIA
关键词
D O I
10.1016/0550-3213(93)90080-9
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We reconsider the possibility that the Higgs doublet responsible for the breaking of the electroweak gauge group be quasi-Goldstone bosons of a spontaneously broken approximate global symmetry of the theory. Supersymmetric SU(5) and SO(10) gauge models are discussed. The main phenomenological consequence of this viewpoint is the possible existence at the Fermi scale of a quasi-stable particle, most likely a Lorentz scalar, with the same colour and charge as a down quark. Its existence is a generic feature of models based on SO(10). The associated phenomenological is illustrated. We also show how the phenomenology of the minimal SU(5) theory, already proposed, gets tightly constrained by the consideration of coupling constant unification without any assumption, otherwise crucial, on the superheavy threshold effects.
引用
收藏
页码:487 / 500
页数:14
相关论文
共 37 条
[1]   SEARCH FOR HEAVY STABLE CHARGED-PARTICLES IN 1.8-TEV PPBAR COLLISIONS AT THE FERMILAB COLLIDER [J].
ABE, F ;
AMIDEI, D ;
APOLLINARI, G ;
ASCOLI, G ;
ATAC, M ;
AUCHINCLOSS, P ;
BADEN, AR ;
BARBAROGALTIERI, A ;
BARNES, VE ;
BEDESCHI, F ;
BELFORTE, S ;
BELLETTINI, G ;
BELLINGER, J ;
BENSINGER, J ;
BERETVAS, A ;
BERGE, P ;
BERTOLUCCI, S ;
BHADRA, S ;
BINKLEY, M ;
BLAIR, R ;
BLOCKER, C ;
BOFILL, J ;
BOOTH, AW ;
BRANDENBURG, G ;
BROWN, D ;
BYON, A ;
BYRUM, KL ;
CAMPBELL, M ;
CAREY, R ;
CARITHERS, W ;
CARLSMITH, D ;
CARROLL, JT ;
CASHMORE, R ;
CERVELLI, F ;
CHADWICK, K ;
CHAPIN, T ;
CHIARELLI, G ;
CHINOWSKY, W ;
CIHANGIR, S ;
CLINE, D ;
CONNOR, D ;
CONTRERAS, M ;
COOPER, J ;
CORDELLI, M ;
CURATOLO, M ;
DAY, C ;
DELFABBRO, R ;
DELLORSO, M ;
DEMORTIER, L ;
DEVLIN, T .
PHYSICAL REVIEW LETTERS, 1989, 63 (14) :1447-1450
[2]  
ALBRECHT H, 1990, Z PHYS C PART FIELDS, V48, P543, DOI 10.1007/BF01614687
[3]   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
[4]   SUSY GUT WITH AUTOMATIC DOUBLET TRIPLET HIERARCHY [J].
ANSELM, AA ;
JOHANSEN, AA .
PHYSICS LETTERS B, 1988, 200 (03) :331-334
[5]  
ANSELMO F, 1992, CERNTH614092 PREPR
[6]   GAUGE-MODELS WITH SPONTANEOUSLY BROKEN LOCAL SUPERSYMMETRY [J].
BARBIERI, R ;
FERRARA, S ;
SAVOY, CA .
PHYSICS LETTERS B, 1982, 119 (4-6) :343-347
[7]   GRAND UNIFICATION AND THE SUPERSYMMETRIC THRESHOLD [J].
BARBIERI, R ;
HALL, LJ .
PHYSICAL REVIEW LETTERS, 1992, 68 (06) :752-753
[8]  
BEREZHIANI Z, 1988, SOV PHYS LEBEDEV I R, V67, P663
[9]  
BETHE S, 1992, CERNTH6484 PREPR
[10]  
BURGERS G, 1989, CERN8908 YELL REP, V1, P55