Central Diffraction in Proton-Proton Collisions at \,TeV with ALICE at LHC
Jan, 20134 pages
Published in:
- AIP Conf.Proc. 1523 (2013) 1, 17-20
Contribution to:
- , 17-20
- Diffraction 2012
- Published: Apr 16, 2013
e-Print:
- 1301.3507 [hep-ex]
DOI:
Experiments:
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Abstract: (AIP)
A double-gap topology is used for filtering central-diffractive events from a protonproton minimum-bias data sample at a centre-of-mass energy Central diffraction in proton-proton collisions at J = J7TeV. This topology is defined by particle activity in the ALICE central barrel and absence of particle activity outside. The fraction of events satisfying the double-gap requirement RDG is found to be 7.63+-0.02(st at.)+-0.87(syst.)Oe10-'4. The background of this double-gap fraction is estimated by studying the contributions of non-diffractive, single-and double-diffractive dissociation processes as modelled by Monte Carlo event generators, and is found to be about 10%.Note:
- 4 pages, 2 figures, Proceedings Diffraction 2012 - International Workshop on Diffraction in High-Energy Physics, Puerto del Carmen, Sept. 10-15, 2012
- 13.85.Ni
- high-energy elementary particle interactions
- proton-proton inclusive interactions
- diffraction
- Monte Carlo
- ALICE
- nondiffractive
- CERN LHC Coll
- dissociation
- background
References(4)
Figures(2)
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