THE P PARAMETER IN AN SP(2N)XU(1) MODEL

被引：4

作者：

CHO, P

机构：

[1] Lyman Laboratory of Physics, Harvard University, Cambridge

来源：

PHYSICS LETTERS B | 1990年 / 240卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(90)91121-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a model based upon the gauge group Sp(2N)×U(1) which contains the SU(2)×U(1) electroweak model as an exact subsector. The ρ{variant} parameter in this symplectic model is calculated to leading order in 1 N. We illustrate the general dependence of ρ{variant} upon the Higgs coupling constant λ with particular interest in th e large λ limit. Finally, the 1 N result is compared with conventional one-and two-loop expressions for ρ{variant} in the standard model. © 1990.

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页码：407 / 413

页数：7

相关论文

共 11 条

[1] CAN ELEMENTARY SCALAR PARTICLES EXIST [J].

CALLAWAY, DJE ;

PETRONZIO, R .

NUCLEAR PHYSICS B, 1986, 267 (02) :253-265

[2] EFFECTIVE LAGRANGIAN DESCRIPTION OF THE POSSIBLE STRONG SECTOR OF THE STANDARD MODEL [J].

CASALBUONI, R ;

DOMINICI, D ;

GATTO, R .

PHYSICS LETTERS B, 1984, 147 (06) :419-424

[3] SPONTANEOUS SYMMETRY BREAKING IN O(N) MODEL FOR LARGE N [J].

COLEMAN, S ;

JACKIW, R ;

POLITZER, HD .

PHYSICAL REVIEW D, 1974, 10 (08) :2491-2499

[4]

DAWSON S, 1988, BNL PREPRINT

[5] HEAVY-PARTICLES AND THE RHO-PARAMETER IN THE STANDARD MODEL [J].

EINHORN, MB ;

JONES, DRT ;

VELTMAN, M .

NUCLEAR PHYSICS B, 1981, 191 (01) :146-172

[6]

EINHORN MB, 1984, NUCL PHYS B, V246, P75, DOI 10.1016/0550-3213(84)90115-9

[7] RADIATIVE-CORRECTIONS TO VECTOR BOSON MASSES FOR HEAVY HIGGS BOSONS [J].

EINHORN, MB ;

KATSUMATA, H .

PHYSICS LETTERS B, 1986, 181 (1-2) :115-118

[8] SCREENING OF HEAVY-HIGGS-BOSON RADIATIVE EFFECTS [J].

EINHORN, MB ;

WUDKA, J .

PHYSICAL REVIEW D, 1989, 39 (09) :2758-2763

[9] WEAK INTERACTIONS AT VERY HIGH-ENERGIES - ROLE OF HIGGS-BOSON MASS [J].

LEE, BW ;

QUIGG, C ;

THACKER, HB .

PHYSICAL REVIEW D, 1977, 16 (05) :1519-1531

[10] 2-LOOP LARGE HIGGS MASS CORRECTION TO THE PARA-PARAMETER [J].

VANDERBIJ, J ;

VELTMAN, M .

NUCLEAR PHYSICS B, 1984, 231 (02) :205-234