Gauginos as a signal for supersymmetry at pp-bar colliders

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.1598· OSTI ID:5855764

Baer, H; Hagiwara, K; Tata, X

We present a comprehensive analysis of the signals from the pair production of the mass eigenstates (W-italic-tilde, Z-italic-tilde, and gamma-tilde) of the gauge-Higgs-fermion system for both CERN and Fermilab Tevatron energies, assuming that gamma-tilde is relatively light (approx. <10 GeV) and escapes detection. The effect of varying the mixings and the mass spectrum of the scalar fermions is also discussed for a general minimal supersymmetry model, assuming only that gamma-tilde is light. Signals from both the hadronic and leptonic decays of W-italic-tilde and Z-italic-tilde are studied, incorporating cuts, triggers, and experimental resolutions appropriate to the UA1 detector and Collider Detector at Fermilab. We show that if the decays W..-->..W-italic-tildeZ-italic-tilde and Z/sup 0/..-->..W-tildeW-tilde-bar are kinematically accessible, there is a substantial level of (i) jet(s) + p-italic-dash-bar/sub T/ events from the hadronic decays of W-italic-tilde and Z-italic-tilde, (ii) a comparable level of background-free multilepton + p-italic-dash-bar/sub T/ events, essentially free from hadronic activity from the leptonic decay of W-italic-tilde and Z-italic-tilde, and (iii) jet(s) + lepton(s) + p-italic-dash-bar/sub T/ events from the leptonic decay of one of the gauginos and hadronic decay of the other. We present rates and distributions for these events and show that a conclusive absence of such a signal could lead to more stringent direct mass limits on masses of the W-italic-tilde and Z-italic-tilde than are currently available.

• Research Organization: High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5855764
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Weak Interactions &amp; Properties
645300 -- High Energy Physics-- Particle Invariance Principles &amp; Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HIGGS BOSONS
INTERACTIONS
JET MODEL
LEPTONIC DECAY
LEPTONS
LIE GROUPS
MATHEMATICAL MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
PROTON-ANTIPROTON INTERACTIONS
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
WEAK INTERACTIONS
WEAK PARTICLE DECAY