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Measurement of the bb production cross section in 920 GeV proton-nucleus collisions

✍ Scribed by Mauro Villa

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 672 KB
Volume: 120
Category: Article
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)01900-5

No coin nor oath required. For personal study only.

✦ Synopsis

For the HERA -B Collaboration

Using the HERA -B detector, the b6 production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The bb production was tagged via inclusive bottom quark decays into J/1c, by exploiting the longitudinal separation of J/I/J -+ 1+1-decay vertices from the primary proton-nucleus interaction. Both e+e-and p ,u + -channels have been reconstructed and the combined analysis yields the cross section a(b&) = 32 + ti(stat) +:(syst) rib/nucleon.

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