The Outer Tracker detector of the HERA-B experiment. Part II: Front-end electronics

Albrecht, H.; Bahte, M.; Bauer, Th.; Beck, M.; Berkhan, K.; Böhm, G.; Bruinsma, M.; Buran, T.; Capeáns, M.; Chen, B.X.; Deckers, H.; Dong, X.; Eckmann, R.; Emelianov, D. D.; Evgrafov, G.; Golutvin, I.; Hohlmann, M.; Höpfner, K.; Hulsbergen, W.; Jia, Yu; Jiang, C. H.; Kapitza, H.; Karabekyan, S.; Ke, Z. J.; Kiryushin, Yu.T.; Kolanoski, H.; Korpar, S.; Križan, P.; Krücker, D.; Lanev, A.; Liu, Y.Q.; Löhse, T.; Loke, R.; Mankel, R.; Medin, G.; Michel, E.; Moshkin, A.; Ni, Jun; Nowak, S.; Ouchrif, M.; Aranda, C. Padilla; Pernack, R.; Petrukhin, A.; Pohl, M.; Pose, D.; Reßing, D.; Schmidt, B.; Schmidt‐Parzefall, W.; Schreiner, A.; Schröder, H.; Schwanke, U.; Schwarz, A. S.; Siccama, I.; Solunin, S.; Somov, S.; Souvorov, V.; Спиридонов, А.; Starič, M.; Stegmann, C.; Steinkamp, O.; Tesch, N.; Tsakov, I.; Uwer, U.; Vassiliev, S.; Vishnevsky, D.; Vukotić, I.; Walter, Michael; Wang, J.J.; Wang, Y.M.; Wilczek, Hubert J.; Wurth, R.; Yang, J.; Zheng, Z. P.; Zhu, Z. H.; Zimmermann, R.

doi:10.1016/j.nima.2004.12.005

Cited by 13 publications

(1 citation statement)

References 6 publications

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“…The vacuum vessel housing the detector was an integral part of the HERA proton ring. The VDS was followed by a large aperture dipole magnet with a field integral of 2.13 Tm, and a set of tracking chambers (OTR) [34,35] consisting of ≈95,000 channels of honeycomb drift cells. Particle identification was performed by a Ring Imaging Cherenkov detector [36], an electromagnetic calorimeter [37] and a muon system [38].…”

Section: Hera-b Experiments and Data Samplementioning

confidence: 99%

V0 production in p+A collisions at $\sqrt{s}=41.6$ GeV

Abt¹,

Adams²,

Agari³

et al. 2009

Eur. Phys. J. C

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Inclusive doubly differential cross sections d 2 σ pA /dx F dp 2 T as a function of Feynman-x (x F ) and transverse momentum (p T ) for the production of K 0 S , Λ andΛ in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x F range (−0.12 < x F < 0.0) and for transverse momenta up to p T = 1.6 GeV/c. Results for three target materials: carbon, titanium and tungsten are given. The ratios of production cross sections are presented and discussed. The Cronin effect is clearly observed for all three V 0 species. The atomic number dependence is parameterized as σ pA = σ pN · A α where σ pN is the proton-nucleon cross section. The measured values of α are all near one. The results are compared with EPOS 1.67 and PYTHIA 6.3. EPOS reproduces the data to within ≈ 20% except at very low transverse momentum. a

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Section: Hera-b Experiments and Data Samplementioning

confidence: 99%

V0 production in p+A collisions at $\sqrt{s}=41.6$ GeV

Abt¹,

Adams²,

Agari³

et al. 2009

Eur. Phys. J. C

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The Outer Tracker detector of the HERA-B experiment—Part I: Detector

Albrecht¹,

Bauer²,

Beck³

et al. 2005

Nuclear Instruments and Methods in Physics Research Section A:

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The HERA-B Outer Tracker is a large system of planar drift chambers with about 113 000 read-out channels. Its inner part has been designed to be exposed to a particle flux of up to 2 · 10 5 cm −2 s −1 , thus coping with conditions similar to those expected for future hadron collider experiments. 13 superlayers, each consisting of two individual chambers, have been assembled and installed in the experiment. The stereo layers inside each chamber are composed of honeycomb drift tube modules with 5 and 10 mm diameter cells. Chamber aging is prevented by coating the cathode foils with thin layers of copper and gold, together with a proper drift gas choice. Longitudinal wire segmentation is used to limit the occupancy in the most irradiated detector regions to about 20 %. The production of 978 modules was distributed among six different laboratories and took 15 months. For all materials in the fiducial region of the detector good compromises of stability versus thickness were found. A closed-loop gas system supplies the Ar/CF 4 /CO 2 gas mixture to all chambers. The successful operation of the HERA-B Outer Tracker shows that a large tracker can be efficiently built and safely operated under huge radiation load at a hadron collider.

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Luminosity determination at HERA-B

Abt

Adams

Agari

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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A detailed description of an original method used to measure the luminosity accumulated by the HERA-B experiment for a data sample taken during the 2002-2003 HERA running period is reported. We show that, with this method, a total luminosity measurement can be achieved with a typical precision, including overall systematic uncertainties, at a level of 5% or better. We also report evidence for the detection of δ-rays generated in the target and comment on the possible use of such delta rays to measure luminosity.

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The Outer Tracker detector of the HERA-B experiment. Part II: Front-end electronics

Cited by 13 publications

References 6 publications

V0 production in p+A collisions at $\sqrt{s}=41.6$ GeV

V0 production in p+A collisions at $\sqrt{s}=41.6$ GeV

The Outer Tracker detector of the HERA-B experiment—Part I: Detector

Luminosity determination at HERA-B

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