pp{yields}J/{psi}+{Upsilon}+X as a clean probe to the quarkonium production mechanism

Journal Article · Tue Mar 01 04:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.054015· OSTI ID:21578191

Ko, P; Yu, Chaehyun; Lee, Jungil ^[1]

---

1. School of Physics, KIAS, Seoul 130-722 (Korea, Republic of)

We report that, unlike most inclusive quarkonium-production processes, the production rate for pp{yields}J/{psi}+{Upsilon}+X dominantly depends on two not well-known long-distance nonrelativistic QCD matrix elements, <O{sub 8}{sup J}/{psi}(3S{sub 1})> and <O{sub 8}{sup {Upsilon}}(3S{sub 1})> at leading order in the strong coupling constant, which account for the transition probabilities of the color-octet spin-triplet heavy-quark-antiquark pairs cc{sub 8}({sup 3}S{sub 1}){yields}J/{psi} and bb{sub 8}({sup 3}S{sub 1}){yields}{Upsilon}, respectively. With the integrated luminosity {approx}100 fb{sup -1} at the center-of-momentum energy {radical}(s)=14 TeV we expect that approximately 1900 pp{yields}J/{psi}+{Upsilon}+X events can be observed at the CERN Large Hadron Collider by tagging muon pairs, which are enough to probe to the color-octet mechanism. The forthcoming measurement may provide a useful constraint to resolve the decade-old puzzle for the polarization of prompt J/{psi} at the Fermilab Tevatron. If corresponding measured rate is significantly less than the prediction, it may imply that the current values for the color-octet matrix elements are overestimated.

• OSTI ID: 21578191
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANTIMATTER
ANTIPARTICLES
ANTIQUARKS
B QUARKS
BEAUTY PARTICLES
BOSONS
C QUARKS
CERN LHC
CHARM PARTICLES
CHARMONIUM
COLOR MODEL
COMPOSITE MODELS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMILAB TEVATRON
FERMIONS
FIELD THEORIES
HADRONS
J PSI-3097 MESONS
LUMINOSITY
MATHEMATICAL MODELS
MATRIX ELEMENTS
MATTER
MESONS
MUON PAIRS
OPTICAL PROPERTIES
PARTICLE MODELS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
PROBES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
QUARKS
STORAGE RINGS
STRONG-COUPLING MODEL
SYNCHROTRONS
T QUARKS
TOP PARTICLES
VECTOR MESONS