Development of the ZEUS central tracking detector

Brooks, C.B.; Bullock, F. W.; Cashmore, R. J.; Devenish, R.C.E.; Foster, B.; Fraser, T.J.; Gibson, Murray; Gilmore, R.; Gingrich, D. M.; Harnew, N.; Hart, J. C.; Heath, H. F.; Hiddleston, J. W.; Holmes, A.; Jamdagni, A.; Jones, T. W.; Llewellyn, T.J.; Long, K.; Lush, G.J.; Malos, J.; Martin, N.C.; McArthur, I.; McCubbin, N. A.; McQuillan, D.; Miller, D. B.; Mobayyen, M. M.; Morgado, Cjs; Nash, J.A.; Nixon, G.; Parham, A.G.; Payne, B.T.; Roberts, Jay; Salmon, G.L.; Saxon, D. H.; Sephton, A. J.; Shaw, D.; Shaw, T.B.; Shield, P.D.; Shulman, J.; Silvester, I.; Smith, S.J.P.; Strachan, D.E.; Tapper, R. J.; Tkaczyk, S.; Toudup, L.; Wallis, Eric; Wastie, R.; Wells, J.; White, David J.; Wilson, F. F.; Yeo, K.L.

doi:10.1016/0168-9002(89)91403-4

Cited by 31 publications

(1 citation statement)

References 13 publications

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“…Immediately surrounding the beampipe is the vertex detector (VXD) which consists of 120 radial cells, each with 12 sense wires [12]. Surrounding the VXD is the cylindrical central tracking detector (CTD) which consists of 72 cylindrical drift chamber layers, organised into 9 superlayers [13] (5 axial and 4 small angle stereo layers). In events with charged tracks, using the combined data from both chambers, resolutions of 0.4 cm in Z and 0.1 cm in radius in the XY plane 1 are obtained for the primary vertex reconstruction.…”

Section: The Zeus Detectormentioning

confidence: 99%

Measurement of the diffractive structure function in deep inelastic scattering at HERA

Derrick

Botje

Chlebana

et al. 1995

Z. Phys. C - Particles and Fields

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105

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This paper presents an analysis of the inclusive properties of diffractive deep inelastic scattering events produced in ep interactions at HERA. The events are characterised by a rapidity gap between the outgoing proton system and the remaining hadronic system. Inclusive distributions are presented and compared with Monte Carlo models for diffractive processes. The data are consistent with models where the pomeron structure function has a hard and a soft contribution. The diffractive structure function is measured as a function of x IP , the momentum fraction lost by the proton, of β, the momentum fraction of the struck quark with respect to x IP , and of Q 2 . The x IP dependence is consistent with the form (1/x IP ) a where a = 1.30 ± 0.08 (stat) + 0.08 − 0.14 (sys) in all bins of β and Q 2 . In the measured Q 2 range, the diffractive structure function approximately scales with Q 2 at fixed β. In an Ingelman-Schlein type model, where commonly used pomeron flux factor normalisations are assumed, it is found that the quarks within the pomeron do not saturate the momentum sum rule.

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Section: The Zeus Detectormentioning

confidence: 99%