Superheavy-quarkonium production and decays: A new Higgs-boson signal

Journal Article · Mon Jun 01 00:00:00 EDT 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.3366· OSTI ID:6140726

Barger, V; Glover, E W.N.; Hikasa, K; Keung, W; Olsson, M G; Suchyta, III, C J; Tata, X R

We study the production and subsequent decays of the S- and P-wave quarkonium states of a heavy quark that may be produced at a multi-TeV hadron collider. Our considerations are focused on the lighter member of a fourth-generation doublet, for which the weak decays of the quark are expected to be suppressed by mixing angles. For quarkonium masses approx. <1 TeV, the dominant production is via gluon fusion. In addition to the decay channels that are present in the charm and bottom systems, heavy quarkonia can decay into W/sup +/W/sup -/, Z/sup 0/Z/sup 0/, and Z/sup 0/..gamma.. pairs. Furthermore, the latter decay rates may be enhanced due to couplings of the heavy quarks to the longitudinal components of the gauge bosons. We assess the prospects for discovery of a new heavy quark via its bound-state decays. Quarks with masses up to approx. =100 GeV can be found from the decay of the 1/sup --/ state (psi) into lepton pairs. If the decay of the pseudoscalar quarkonium state into a Z boson and a Higgs boson is kinematically allowed, there is a rather clean signal for the Higgs boson, even for the intermediate-mass Higgs boson with 2m/sub t/

• Research Organization: Physics Department, University of Wisconsin, Madison, Wisconsin 53706
• OSTI ID: 6140726
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203 -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Weak Interactions &amp; Properties
645204* -- High Energy Physics-- Particle Interactions &amp; Properties-Theoretical-- Strong Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BOSONS
BOUND STATE
BRANCHING RATIO
COMPOSITE MODELS
CROSS SECTIONS
DECAY
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FLAVOR MODEL
GLUONS
HADRONS
HIGGS BOSONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LUMINOSITY
MASS
MATHEMATICAL MODELS
MESONS
OPTICAL PROPERTIES
P WAVES
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHYSICAL PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKONIUM
S WAVES
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
TEV RANGE