Evidence for a narrow anti-charmed baryon state - INSPIRE

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Evidence for a narrow anti-charmed baryon state

H1

Collaboration

•

A. Aktas

Mar, 2004

20 pages

Published in:

Phys.Lett.B 588 (2004) 17

e-Print:

hep-ex/0403017 [hep-ex]

DOI:

10.1016/j.physletb.2004.03.012

Report number:

DESY-04-038

Experiments:

DESY-HERA-H1

View in:

ADS Abstract Service

reference search285 citations

Citations per year

Abstract: (Elsevier)

A narrow resonance in D ∗ − p and D ∗ + p ̄ invariant mass combinations is observed in inelastic electron–proton collisions at centre-of-mass energies of 300 GeV and 320 GeV at HERA. The resonance has a mass of 3099±3(stat.)±5(syst.) MeV and a measured Gaussian width of 12±3(stat.) MeV, compatible with the experimental resolution. The resonance is interpreted as an anti-charmed baryon with a minimal constituent quark composition of uudd c ̄ , together with the charge conjugate.

Note:

20 pages, 7 figures and 2 tables

electron p: colliding beams
electron p: deep inelastic scattering
charmed baryon: electroproduction
charmed baryon: hadronic decay
pentaquark
mass spectrum: (D*(2010) p)
mass spectrum: (D*(2010) anti-p)
narrow resonance: width
H1
experimental results

References(48)

Figures(11)

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