Heavy flavour production at HERA

被引：1

作者：

Lipka, K ^{[1
]}

机构：

[1] DESY, D-15738 Zeuthen, Germany

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2006年 / 152卷

关键词：

D O I：

10.1016/j.nuclphysbps.2005.08.024

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Recent results on open charm and beauty production at HERA are presented. The charm contribution to the inclusive proton structure function F-2 at moderate and high Q(2) is shown. Open beauty production cross sections and the first measurement of the beauty contribution to F2 at high Q2 is presented. Evidence for an exotic anti-charmed baryon state observed by HI is discussed. The data show a narrow resonance in the D p invariant mass combination at 3099 +/- 3(stat)+/- 5(syst) MeV. The resonance is interpreted as an anti-charmed baryon with minimal constituent quark content uudd (c) over bar together with its charge conjugate. Such a signal is not observed in a similar preliminary ZEUS analysis.

引用

页码：128 / 135

页数：8

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