Z -boson decays to heavy quarkonium

Journal Article · Thu Mar 01 00:00:00 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), Vol. 41:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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