Z -boson decays to heavy quarkonium

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.1541· OSTI ID:6850283

Barger, V; Cheung, K ^[1]; Keung, W ^[2]

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1. Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (USA)
2. Physics Department, University of Illinois at Chicago, Chicago, Illinois 60680 (USA)

We evaluate the decays {ital Z}{r arrow}{ital Q}+{ital {bar Q}}+{ital S}({ital Q{bar Q}}) of {ital Z} bosons to {sup 3}S{sub 1}({ital Q{bar Q}}) and {sup 1}S{sub 0}({ital Q{bar Q}}) quarkonium states of charm and bottom quarks. We find partial widths of {Gamma}({ital Z}{r arrow}{ital c{bar c}}{psi}/{ital J})=47 keV, {Gamma}({ital Z}{r arrow}{ital c{bar c}}{eta}{sub {ital c}})=145 keV, {Gamma}({ital Z}{r arrow}{ital b{ital b}}{Upsilon}{sub {ital b}})=6.4 keV, and {Gamma}({ital Z}{r arrow}{ital b{bar b}}{eta}{sub {ital b}})=6.5 keV, that might be observable at the CERN {ital e}{sup +}{ital e}{sup {minus}} collider LEP. We also calculate the partial widths for {ital W}{sup +}{r arrow}{ital c}{bar s}{psi}/{ital J}, {ital t}{r arrow}{ital W}{sup +}{ital b}{Upsilon}{sub {ital b}}, {eta}{sub {ital Q}}{r arrow}{ital Zgg}, and {ital Z}{r arrow}{eta}{sub {ital c},{ital b}}{ital gg} decays.

• DOE Contract Number: AC02-76ER00881; FG02-84ER40173
• OSTI ID: 6850283
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FEYNMAN DIAGRAM
GLUONS
HELICITY
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEP STORAGE RINGS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUARKONIUM
STORAGE RINGS
W PLUS BOSONS
Z NEUTRAL BOSONS