TY - JOUR

T1 - A simple phenomenological parametrization of supersymmetry without R-parity

AU - Bisset, Mike

AU - Kong, Otto C.W.

AU - Macesanu, Cosmin

AU - Orr, Lynne H.

N1 - Funding Information:
We thank K.S. Babu, E. Nardi and S. Pakvasa for helpful discussions. This work was supported in part by the US Department of Energy, under grant DE-FG02-91ER40685 and by the US National Science Foundation, under grant PHY-9600155.

PY - 1998/7/2

Y1 - 1998/7/2

N2 - We present a parametrization of the supersymmetric standard model without R-parity that permits efficient phenomenological analyses of the full model without a priori assumptions. Under the parametrization, which is characterized by a single vacuum expectation value for the scalar components of the Y= -1/2 superfields, the expressions for tree-level mass matrices are quite simple. They do not involve the trilinear R-parity violating couplings; however, the bilinear μi terms do enter and cannot be set to zero without additional assumptions. We set up a framework for doing phenomenology and show some illustrative results for fermion mass matrices and related bounds on parameters. We find in particular that large values of tanβ can suppress R-parity violating effects, substantially weakening experimental constraints.

AB - We present a parametrization of the supersymmetric standard model without R-parity that permits efficient phenomenological analyses of the full model without a priori assumptions. Under the parametrization, which is characterized by a single vacuum expectation value for the scalar components of the Y= -1/2 superfields, the expressions for tree-level mass matrices are quite simple. They do not involve the trilinear R-parity violating couplings; however, the bilinear μi terms do enter and cannot be set to zero without additional assumptions. We set up a framework for doing phenomenology and show some illustrative results for fermion mass matrices and related bounds on parameters. We find in particular that large values of tanβ can suppress R-parity violating effects, substantially weakening experimental constraints.

UR - http://www.scopus.com/inward/record.url?scp=0347875040&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(98)00533-4

DO - 10.1016/S0370-2693(98)00533-4

M3 - 期刊論文

AN - SCOPUS:0347875040

SN - 0370-2693

VL - 430

SP - 274

EP - 280

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -