Journal article

### Measurement of elastic Upsilon photoproduction at HERA

Abstract:

Elastic ρ 0 photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events from ep interactions were used to measure the reaction γp→ρ 0 p(ρ 0)→π +π-) at photon-proton centre-of-mass energies between 60 and 80 GeV and |t|<0.5 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The differential cross section dσ/d M ππ where M ππ is the invariant mass of the two pions, and the integrated cross section, σγp→ρ{variant}0ρ{varian...

Publication status:
Published

### Authors

Journal:
Physics Letters B
Volume:
437
Issue:
3-4
Pages:
432-444
Publication date:
1998-10-08
DOI:
EISSN:
1431-5858
ISSN:
0370-2693
Source identifiers:
1016
Language:
English
Pubs id:
pubs:1016
UUID:
uuid:efe92ae7-85ee-4a54-9c00-02af96846b61
Local pid:
pubs:1016
Deposit date:
2012-12-19