Supersymmetry and the spontaneous breaking of a U(1) gauge factor

被引：6

作者：

Keith, E

Ma, E

Mukhopadhyaya, B

机构：

[1] Department of Physics, University of California, Riverside, CA

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.55.3111

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate a supersymmetric theory with an extra U(1) gauge symmetry surviving down to low energies. The extra U(1) is assumed to originate from an E(6) grand unified theory (GUT). We show that if one assumes universal soft supersymmetry-breaking scalar masses at the GUT scale, and requires the mass of the additional U(1) gauge boson to satisfy phenomenological bounds, then the conditions for electroweak symmetry breaking will provide stringent restrictions on the allowed parameter space of such a theory. We also determine the masses of standard as well as exotic sfermions and find that it is possible for the latter to be lighter than the former. An interesting specific observation is that a light top squark is difficult to accommodate with an extra U(1) gauge symmetry.

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收藏

页码：3111 / 3117

页数：7

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共 33 条

[1]

AMALDI U, 1991, PHYS LETT B, V249, P441

[2] CANDIDATE EVENTS IN A SEARCH FOR (NU)OVER-BAR(MU)-](NU)OVER-BAR(E) OSCILLATIONS [J].

ATHANASSOPOULOS, C ;

AUERBACH, LB ;

BAUER, DA ;

BOLTON, RD ;

BOYD, B ;

BURMAN, RL ;

CALDWELL, DO ;

COHEN, I ;

DIETERLE, BD ;

DONAHUE, JB ;

EISNER, AM ;

FAZELY, A ;

FEDERSPIEL, FJ ;

GARVEY, GT ;

GRAY, M ;

GUNASINGHA, RM ;

HIGHLAND, V ;

IMLAY, R ;

JOHNSTON, K ;

LOUIS, WC ;

LU, A ;

MARGULIES, J ;

MCILHANY, K ;

METCALF, W ;

REEDER, RA ;

SANDBERG, V ;

SCHILLACI, M ;

SMITH, D ;

STANCU, I ;

STROSSMAN, W ;

SULLIVAN, MK ;

VANDALEN, GJ ;

VERNON, W ;

WANG, YX ;

WHITE, DH ;

WHITEHOUSE, D ;

WORKS, D ;

XIAO, Y ;

YELLIN, S .

PHYSICAL REVIEW LETTERS, 1995, 75 (14) :2650-2653

[3] Supersymmetry reach of Fermilab Tevatron upgrades: A comparative study [J].

Baer, H ;

Chen, CH ;

Paige, F ;

Tata, X .

PHYSICAL REVIEW D, 1996, 54 (09) :5866-5879

[4] VIOLATIONS OF LEPTON FLAVOR AND CP IN SUPERSYMMETRIC UNIFIED THEORIES [J].

BARBIERI, R ;

HALL, L ;

STRUMIA, A .

NUCLEAR PHYSICS B, 1995, 445 (2-3) :219-251

[5] LOW-ENERGY CONSTRAINTS ON SUPERGRAVITY PARAMETERS [J].

BOUQUET, A ;

KAPLAN, J ;

SAVOY, CA .

NUCLEAR PHYSICS B, 1985, 262 (02) :299-316

[6] Strong constraints on the parameter space of the MSSM from charge and color breaking minima [J].

Casas, JA ;

Lleyda, A ;

Munoz, C .

NUCLEAR PHYSICS B, 1996, 471 (1-2) :3-58

[7] THE MASS OF THE HIGGS-BOSON IN THE STANDARD MODEL FROM PRECISION TESTS [J].

CHANKOWSKI, PH ;

POKORSKI, S .

PHYSICS LETTERS B, 1995, 356 (2-3) :307-312

[8] YANG-MILLS THEORIES WITH LOCAL SUPERSYMMETRY - LAGRANGIAN, TRANSFORMATION LAWS AND SUPER-HIGGS EFFECT [J].

CREMMER, E ;

FERRARA, S ;

GIRARDELLO, L ;

VANPROEYEN, A .

NUCLEAR PHYSICS B, 1983, 212 (03) :413-442

[9] Implications of Abelian extended gauge structures from string models [J].

Cvetic, M ;

Langacker, P .

PHYSICAL REVIEW D, 1996, 54 (05) :3570-3579

[10] New gauge bosons from string models [J].

Cvetic, M ;

Langacker, P .

MODERN PHYSICS LETTERS A, 1996, 11 (15) :1247-1262

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