TY - JOUR
T1 - Double gluon fragmentation to J/ψ pairs at the Tevatron
AU - Barger, V.
AU - Fleming, S.
AU - Phillips, R. J.N.
N1 - Funding Information:
R.J.N.P. thanks Paul Dauncey for helpful information and the University of Wisconsin for hospitality during part of this work. V.B. thanks the Institute for Theoretical Physics at the University of California, Santa Barbara for hospitality during the completion of this work. This researchw as supportedi n part by the US Departmento f Energy under Grant No. DE-FGO2-95ER40896, in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation, and in part by the National Science Foundation under Grant No. PHY94-07 194.
PY - 1996/3/21
Y1 - 1996/3/21
N2 - It has been proposed that the large cross sections for prompt ψ, ψ′, and pp̄ production at the Fermilab Tevatron pp collider can be explained by a dominant color-octet term in the fragmentation function for a gluon to split into quarkonium. We show that this mechanism makes testable predictions for double-quarkonium ψψ, ψψ′, ψXc, ψY and ψXb production, as well as for Wψ production, using color-octet matrix elements previously determined from charmonium production data. The ψψ signal would already be measurable at the Tevatron, while the ψXc and Wψ signals would be on the edge of present detectability.
AB - It has been proposed that the large cross sections for prompt ψ, ψ′, and pp̄ production at the Fermilab Tevatron pp collider can be explained by a dominant color-octet term in the fragmentation function for a gluon to split into quarkonium. We show that this mechanism makes testable predictions for double-quarkonium ψψ, ψψ′, ψXc, ψY and ψXb production, as well as for Wψ production, using color-octet matrix elements previously determined from charmonium production data. The ψψ signal would already be measurable at the Tevatron, while the ψXc and Wψ signals would be on the edge of present detectability.
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U2 - 10.1016/0370-2693(95)01592-2
DO - 10.1016/0370-2693(95)01592-2
M3 - Article
AN - SCOPUS:0043130599
SN - 0370-2693
VL - 371
SP - 111
EP - 116
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -