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STUDY OF D-ASTERISK(2010)(+/-)-PRODUCTION IN EP-COLLISIONS AT HERA

Abstract:

We report the first observation of charmed mesons with the ZEUS detector at HERA using the decay channel D*+ → (D0 → K-π+)π+ (+c.c.). Clear signals in the mass difference ΔM=M(D*)-M(D0) as well as in the M (Kπ) distribution at the D0 mass are found. The ep cross section for inclusive D*± production with Q2 < 4 GeV2 in the γp centre-of-mass energy range 115 < W < 275 GeV has been determined to be (32±7-7+4)nb m the kinematic region {pT(D*) ≥ 1.7 GeV, |η(D*)| < 1-5}. Extrapolating o...

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Publication status:
Published

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Journal:
PHYSICS LETTERS B
Volume:
349
Issue:
1-2
Pages:
225-237
Publication date:
1995-04-13
DOI:
ISSN:
0370-2693
URN:
uuid:6c9499c1-00a9-4194-90ed-cb176c9b953e
Source identifiers:
5153
Local pid:
pubs:5153
Language:
English

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