Abstract
We present a calculation of the charm and gluon fragmentation contributions to inclusive J ψ and ψ′ production at large transverse momentum at the Tevatron. For ψ production, we include both fragmentation directly into ψ and fragmentation into χc followed by the radiative decay χc → ψ + λ. We find that fragmentation overwhelms the leading-order mechanisms for prompt ψ production at large pT, and that the dominant contributions come from fragmentation into χc. Our results are consistent with recent data on ψ production from the CDF and D0 experiments. In the case of prompt ψ′ production, the dominant mechanism at large pT is charm fragmentation into ψ′. We find serious disagreement between our theoretical predictions and recent ψ′ data from the Tevatron.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 548-554 |
| Number of pages | 7 |
| Journal | Physics Letters B |
| Volume | 333 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Aug 4 1994 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Fragmentation production of J ψ and ψ′ at the Tevatron. / Braaten, Eric; Doncheski, Michael A.; Fleming, Sean P; Mangano, Michelangelo L.
In: Physics Letters B, Vol. 333, No. 3-4, 04.08.1994, p. 548-554.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fragmentation production of J ψ and ψ′ at the Tevatron
AU - Braaten, Eric
AU - Doncheski, Michael A.
AU - Fleming, Sean P
AU - Mangano, Michelangelo L.
PY - 1994/8/4
Y1 - 1994/8/4
N2 - We present a calculation of the charm and gluon fragmentation contributions to inclusive J ψ and ψ′ production at large transverse momentum at the Tevatron. For ψ production, we include both fragmentation directly into ψ and fragmentation into χc followed by the radiative decay χc → ψ + λ. We find that fragmentation overwhelms the leading-order mechanisms for prompt ψ production at large pT, and that the dominant contributions come from fragmentation into χc. Our results are consistent with recent data on ψ production from the CDF and D0 experiments. In the case of prompt ψ′ production, the dominant mechanism at large pT is charm fragmentation into ψ′. We find serious disagreement between our theoretical predictions and recent ψ′ data from the Tevatron.
AB - We present a calculation of the charm and gluon fragmentation contributions to inclusive J ψ and ψ′ production at large transverse momentum at the Tevatron. For ψ production, we include both fragmentation directly into ψ and fragmentation into χc followed by the radiative decay χc → ψ + λ. We find that fragmentation overwhelms the leading-order mechanisms for prompt ψ production at large pT, and that the dominant contributions come from fragmentation into χc. Our results are consistent with recent data on ψ production from the CDF and D0 experiments. In the case of prompt ψ′ production, the dominant mechanism at large pT is charm fragmentation into ψ′. We find serious disagreement between our theoretical predictions and recent ψ′ data from the Tevatron.
UR - http://www.scopus.com/inward/record.url?scp=0000122750&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000122750&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(94)90182-1
DO - 10.1016/0370-2693(94)90182-1
M3 - Article
AN - SCOPUS:0000122750
VL - 333
SP - 548
EP - 554
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -