Supersymmetric electroweak radiative corrections to [ital e][sup +][ital e][sup [minus]][r arrow][ital W][sup +][ital W][sup [minus]]. III

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.174· OSTI ID:7033207

Alam, S ^[1]

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1. Ottawa-Carleton Institute for Physics, Carleton University, Ottawa, Ontario, K1N 9B4 (Canada)

This is the third of a series of three papers in which we give a complete analysis of one loop quantum corrections to the [ital W] pair production in the context of supersymmetric electroweak theory. We adopt the on-shell-mass subtraction scheme of Sakakibara. In this paper we concentrate mainly on the one loop corrections to the differential cross section arising from the box diagrams. Details of the relevant analytic results are given. We also present our results for the total radiative corrections and wherever possible compare the QFD part of our calculation with previous work. We find a change of approximately 3%--4% in the differential cross section if the Higgs boson mass is varied from 10 GeV to 500 GeV. The differential cross section varies approximately 8% if the top mass is varied between 40 GeV and 150 GeV. Our results for the dependence of the differential cross section on the Higgs boson and top quark are in agreement with Bohm et al. In the context of the SM we find moderate corrections at CERN LEP II energies. We find the percentage (with respect to the tree-level) virtual loop corrections arising from the box diagrams (considered in this paper) due to the addition of SUSY particles varies approximately from 0.18% to [minus]5.67%. As a comparison the percentage virtual corrections due to the box diagrams in the SM varies typically from 0.89% to 8.3%. The SM total percentage virtual loop corrections varies typically from 17.4% to 19%. The above comparison is made at the same center-of-mass energy (200 GeV). The first percentage in this comparison is for center-of-mass angles of 10[degree], the second being at 90[degree]. Adding all the corrections up we find that the addition of the supersymmetric particles tends to increase the percentage one loop corrections on the order of 6%--8% provided the photino is kept light. With an accurate measurement at LEP II, one can in principle detect such a deviation away from the standard model.

• OSTI ID: 7033207
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 50:1; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Pa
ELECTRON-POSITRON INTERACTIONS
PAIR PRODUCTION
RADIATIVE CORRECTIONS
W MINUS BOSONS
W PLUS BOSONS
DIFFERENTIAL CROSS SECTIONS
HIGGS BOSONS
QUARKS
SUPERSYMMETRY
BOSONS
CORRECTIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTON-LEPTON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
SYMMETRY
662310* - Weak & Electromagnetic Interactions of Leptons- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)
662210 - Specific Theories & Interaction Models
Particle Systematics- Unified Theories & Models- (1992-)