- Abstract:
-
The exclusive photoproduction of J/ψ mesons, γp → J/ψp, has been studied in ep collisions with the ZEUS detector at HERA, in the kinematic range 20 < W < 290 GeV, where W is the photon-proton centre-of-mass energy. The J/ψ mesons were reconstructed in the ninon and the electron decay channels using integrated luminosities of 38 pb-1 and 55 pb-1, respectively. The helicity structure of J/ψ production shows that the hypothesis of s-channel helicity conservation is satisfied within two sta...
Expand abstract - Publisher copy:
- 10.1007/s10052-002-0953-7
-
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- Journal:
- European Physical Journal C
- Volume:
- 24
- Issue:
- 3
- Pages:
- 345-360
- Publication date:
- 2002-07-05
- DOI:
- ISSN:
-
1434-6044
- URN:
-
uuid:156bda02-7904-4888-b513-ae976145ac98
- Source identifiers:
-
172282
- Local pid:
- pubs:172282
- Language:
- English
- Copyright date:
- 2002
Journal article
Exclusive photoproduction of J/ψ mesons at HERA
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