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Test-beam aging studies of a TMAE prototype for the HERA-B RICH

Autor: P. Rose, Kendall Reeves, J. Rosen, Kwong Lau, M. Starič, J. McGill, A. S. Schwarz, R. F. Schwitters, M. S. Atiya, D. Broemmelsiek, Samo Korpar, P. Krizan, P. Maas, M. Ispiryan, J. Pyrlik, T. Hamacher

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 515:313-318

The aging properties of a wire chamber, operating in a methane/TMAE gas mixture, were studied in a beam test. We emphasize here the precautions taken to minimize aging due to materials used in the chamber, and the redundancy in the design of the test

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbebb854c1f2b079839cbf5a982a6276
https://doi.org/10.1016/j.nima.2003.09.016

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Inclusive V production cross sections from 920 GeV fixed target proton-nucleus collisions

Autor: Imma Riu, F. Sanchez, Hernan Wahlberg, L. Garrido, B. Bobchenko, N. Tesch, Brian Petersen, I. Kisel, C. Stegmann, C. B. Krauss, Mikhail Zavertyaev, O. Barsukova, J. L. Rosen, O. Steinkamp, Ulrich Werthenbach, D. Ryzhikov, F. Klefenz, D. Dujmic, I. Belotelov, H. Kapitza, H. Thurn, Yu. Pavlenko, P. Kreuzer, Jenny Ivarsson, Pietro Faccioli, M. Beck, I. Golutvin, V. Aushev, R. Wurth, T. Perschke, Mauro Villa, D. Broemmelsiek, M. Chmeissani, H. Sun, J. Yang, A. Michetti, Paul Edmund Karchin, A. Stanovnik, H. Fleckenstein, M. Ouchrif, S. Korpar, J. Luidemann, M. Spahn, K. Hofner, A. Kaoukher, Helmut Wolters, V. Saveliev, L. Sozuer, V. Vagnoni, J. Chamanina, A. Bogatyrev, Farid Ould-Saada, Kwong Lau, B. Lewende, M. Mevius, Yu.V. Mikhailov, L. Seybold, Ramon Miquel, J. D. Hansen, Søren Schmidt, Peter Robmann, Wolfgang Wagner, R. van Staa, R Stdenis, S. Hausmann, R. Chistov, D. Samtleben, B. Lomonosov, K. Berkhan, V. Rusinov, V. Eiges, M. Medinnis, D. C. Goulart, Dmitry Emeliyanov, S. Schaller, Z. Ke, I. Belyaev, A. Zhelezov, Samim Erhan, W. Ruckstuhl, A. Moshkin, V. Popov, Werner Hofmann, P.E. Schlein, J. Glass, R. F. Schwitters, Valery Pugatch, S. Essenov, J.J. Wang, D. Wegener, J. Rieling, Roberto Spighi, R. Mankel, A. Lange, D. Krücker, S. Nowak, D. Pose, J. Bastos, A. Belkov, Hyun-Chul Kim, N.N. Karpenko, W. Schmidt-Parzefall, Umberto Marini Bettolo Marconi, S. Steinbeck, V. Souvorov, A. Schreiner, Thomas Hamacher, B. Dolgoshein, W. Gradl, M. A. Pleier, C. Borgmeier, A. S. Schwarz, K. T. Knöpfle, B. Schwenninger, K. E. K. Gerndt, Antonio Zoccoli, Y. Guilitsky, Y. Vassiliev, U. Straumann, Yu.T. Kiryushin, I. Gorbounov, F. Saadi-Ludemannm, M. Dressel, M. Poli, D. Peralta, T. Lohse, I. Negri, M. Capeans, A. Bertin, Antonio Sbrizzi, Z. Zheng, S. Karabekyan, Y. Bagaturia, S. Ramachandran, G. Leffers, A. Vitale, I. Vukotic, S. Semenov, J. Zweizig, K. M. Danielsen, Benedetto Giacobbe, A. Gellrich, X. Dong, S. Shuvalov, Reinhard Männer, B. Schwingenheuer, B. Fominykh, F. Khasanov, M. Nörenberg, V. Rybnikov, M. Funcke, M. Walter, Nicola Semprini-Cesari, M. Bruinsma, M. Bargiotti, P. Pakhlov, C. van Eldik, H. Deppe, David Gascon, M. Hildebrandt, Kendall Reeves, I. C. Legrand, Vasco Amaral, S. Fourletov, M. Rietz, J. Shiu, O. Gouchtchine, J. Pyrlik, S. Solunin, W. Fallot-Burghardt, S. Keller, S. F. Takach, Christian Bauer, T. Glebe, Andrej Gorišek, D. Galli, H. Schröder, M. Ispiryan, M. Titov, G. Bohm, V. Bassetti, T. Fuljahn, Hermann Kolanoski, L. Matchikhilian, F Sciacca, Klaus Dehmelt, S. Gradl, R. Pernack, S. Issever, H. Itterbeck, V. Kochetkov, T. Zeuner, D. Skrk, I. Abt, B. X. Chen, M. Sang, P. Truöl, W. Hulsbergen, R. Baghshetsyan, P. J. Weyers, R. Wanke, J. Spengler, B. Schmidt, K. Ehret, Yuriy Pylypchenko, R. Pestotnik, Y. Jia, T. Buran, R. Loke, F. Sun, Ulrich Husemann, J. Flammer, M. Böcker, A. Pose, C. Jiang, A. Spiridonov, A. Christensen, M. Symalla, R. Eckmann, A. Golutvin, S. J. Aplin, João Carvalho, U. Trunk, M. S. Atiya, I. Tsakov, S. Nam, Olga Igonkina, V. Balagura, R. Muresan, M. Feuerstack-Raible, Y. Wang, C. Hast, G. Zech, A. Mohapatra, H. B. Dreis, M. Buchler, Mogens Dam, I. Arino, R. Mizuk, U. Schwanke, Laura Fabbri, S. De Castro, M. Danilov, P. Krizan, S. Masciocchi, A. H. Walenta, D. Goloubkov, K. Riechmann, B. Moshous, A. Lanyov, G. Medin, Z. Zhu, H. Deckers, A. Soldatov, T. Zivko, Marcus Hohlmann, A. Arefiev, F. Ratnikov, I. Tikhomirov, H. Albrecht, R. Zimmermann, I. Massa, A. Garcia, R. F. Harr, M. T. N. P. de Vera, T. Oest, D. Ressing, V. Egorytchev, A. Oliveira, A. Wurz, M. Bräuer, C. Rothe, H. D. Schultz, António Amorim, Peter Buchholz, T. Kvaratskheliia, Th.S. Bauer, T. Walter, M. Starič, A. Somov, M. Adams, E. Sexauer, M. Negodaev, Yang Liu, A. J. Schwartz, D. Stieler, Jose M Hernandez, M. Bruschi, M. Piccinini, A. Hoscher, G.J. Wagner, I. Siccama, M. Schmelling, S. Barsuk, S. Spratte, F. Eisele, M. Capponi, T. Hott, P. Conde, T. Jagla, S. Somov, Yu. Zaitsev, C. Cruse, C. Padilla, S. Xella-Hansen, A. Abyzov, U. Uwer

Publikováno v: The European Physical Journal C. 29:181-190

Inclusive differential cross sections dsigma(pA)/dx(F) and dsigma(pA)/dp(t)(2) for the production of K-S(0), Lambda, and (U) over bar particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The incident beam energy is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2aad9b331cff49c6a51ee827da6f46b0
https://doi.org/10.1140/epjc/s2003-01200-y

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J/psi production via chi(c) decays in 920 GeV pA interactions

Autor: Samim Erhan, P. Kreuzer, M. Noerenberg, M. T. Nunez Pardo de Vera, R. Muresan, B. Schmidt, L. Garrido, H. B. Dreis, K. Berkhan, T. Hott, A. Stanovnik, U. Uwer, Sebastian Nowak, V. Rusinov, D. Wegener, R. Mizuk, C. Borgmeier, W. Gradl, M. Walter, D. Ryzhikov, Peter Robmann, M. Hildebrandt, S. Schmidt, B. A. Petersen, V. Saveliev, O. Gouchtchine, R. vanStaa, K. Riechmann, J. Yang, Pietro Faccioli, I. Massa, V. Aushev, J.D. Hansen, M. Spahn, C. Cruse, H. Wahlberg, D. Dujmic, J. Glaess, G. Bohm, C. Hast, Hermann Kolanoski, M. Dressel, A. Somov, G. Medin, J. Chamanina, J. Zweizig, P.E. Schlein, K. M. Danielsen, R. F. Schwitters, R. Eckmann, P. Conde, D. Kruecker, Igor Golutvin, M. Boecker, T. Jagla, S. Schaller, A. Moshkin, R. Wanke, A. Zhelezov, Yu. Zaitsev, Y. Pylypchenko, O. Steinkamp, T. Zivko, L. Sozuer, F. Sanchez, Jenny Ivarsson, M. Capponi, D. Goloubkov, K. T. Knöpfle, Kwong Lau, A. Gellrich, W. Schmidt-Parzefall, R. Spighi, Thomas Hamacher, Y. Vassiliev, I. Negri, G. Leffers, Rok Pestotnik, M. Symalla, S. J. Aplin, H. Schroeder, S. Essenov, A. Michetti, Paul Edmund Karchin, Y. Guilitsky, S. Steinbeck, S. Solunin, W. Fallot-Burghardt, U. Werthenbach, Yu.V. Mikhailov, A. Kaoukher, G.J. Wagner, B. Lewendel, David Gascon, S. F. Takach, M. Titov, T. Zeuner, A. H. Walenta, Y. Wang, J. Spengler, A. Belkov, L. Matchikhilian, O. Barsukova, S. Karabekyan, R Stdenis, U. Trunk, A. J. Schwartz, D. Stieler, Jose M Hernandez, I. Siccama, I. Abt, H. Itterbeck, Ramon Miquel, R. Baghshetsyan, D. C. Goulart, D. Galli, V. Popov, Werner Hofmann, Imma Riu, Mikhail Zavertyaev, B. Dolgoshein, V. Kochetkov, Ch. Rothe, B. Schwenninger, B. Giacobbe, S. Shuvalov, B. Bobchenko, M. Capeans, Yu. Pavlenko, Hyun-Chul Kim, A. Arefiev, S. De Castro, A. Wurz, Yu.T. Kiryushin, Laura Fabbri, L. Seybold, A. Lanyov, F. Klefenz, B. Lomonosov, V. Eiges, M. Feuerstack-Raible, C. Jiang, A. Spiridonov, V. Rybnikov, A. Golutvin, C. Padilla, W. Ruckstuhl, F. Ratnikov, I. Tikhomirov, S. Nam, Nicola Semprini-Cesari, Mauro Villa, M. Schmelling, M. A. Pleier, K. Höpfner, A. Christensen, Y. Bagaturia, Christian Bauer, D. Peralta, V. Bassetti, R. Wurth, B. Moshous, U. Schwanke, P. Truöl, C. B. Krauss, T. Oest, S. Barsuk, Samo Korpar, M. Poli, M. Adams, N. Tesch, U. Marconi, Fouzia Saadi-Lüdemann, Antonio Zoccoli, Jian Wang, M. Chmeissani, João Carvalho, Antonio Sbrizzi, J. Lüdemann, S. Spratte, E. Sexauer, D. Ressing, F. Khasanov, Robert Harr, S. Hausmann, I. Vukotic, S. Xella-Hansen, A. Bogatyrev, M. Bruinsma, U. Husemann, M. Negodaev, Kendall Reeves, T. Glebe, S. Fourletov, V. Souvorov, J. Bastos, T. Buran, I. Kisel, M. Buchler, I. Belyaev, Maurizio Piccinini, Y. Goloubkov, A. Gorisek, Dmitry Emeliyanov, T. Perschke, I. Tsakov, S. Gradl, A. Schreiner, S. Ramachandran, S. Keller, Vasco Amaral, X. Chen, F Sciacca, Klaus Dehmelt, Mogens Dam, X. Dong, R. Pernack, S. Issever, M. Sang, A. S. Schwarz, Th. S. Bauer, J. L. Rosen, A. Bertin, K. Ehret, N.N. Karpenko, D. Broemmelsiek, P. J. Weyers, R. Loke, K. E. K. Gerndt, Yunpeng Liu, Peter Buchholz, B. Schwingenheuer, A. Pose, W. Hulsbergen, Y. Jia, Z. Zheng, Marco Bruschi, A. Holscher, T. Walter, Thomas Lohse, J. Pyrlik, F. Eisele, A. Soldatov, Marcus Hohlmann, S. Somov, M. Ispiryan, J. Flammer, M. Bargiotti, B. Fominykh, Helmut Wolters, Farid Ould-Saada, M. Ouchrif, I. Arino, Wolfgang Wagner, M. Beck, Olga Igonkina, R. Zimmermann, P. Krizan, V. Balagura, H. Deckers, M. Danilov, I. Gorbounov, G. Zech, A. Mohapatra, T. Kvaratskheliia, R. Mankel, M. Funcke, I. C. Legrand, H. Albrecht, M. Starič, D. Skrk, V. Egorytchev, A. Oliveira, A. Lange, D. Pose, M. Braeuer, Mike Medinnis, C. van Eldik, Z. Ke, H. Deppe, J. Rieling, H. D. Schultz, Vincenzo Vagnoni, M. Rietz, C. Stegmann, A. Vitale, S. Semenov, António Amorim, T. Fuljahn, A. Garcia, R. Maenner, M. Mevius, H. Fleckenstein, R. Chistov, D. Samtleben, I. Belotelov, H. Kapitza, H. Thurn, Valery Pugatch, M. S. Atiya, S. Masciocchi, Z. Zhu

Publikováno v: Abt, I, Bauer, T, Carvalho, J, Hernandez, J R, Lau, K, Liu, Y-J, Sbrizzi, A, Schroder, H, Schwarz, A S, Wagner, W W, Wang, J & Wang, Y 2003, ' J/psi production via chi(c) decays in 920 GeV pA interactions ', Physics Letters B, vol. 561, no. 1-2, pp. 61-72 . https://doi.org/10.1016/S0370-2693(03)00407-6
Physics Letters B, 561(1-2), 61-72. Elsevier

Using data collected by the HERA-B experiment, we have measured the fraction of J\psi's produced via radiative chi_c decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained R_{\chi_c} = 0.32 \pm 0.06_{stat} \pm 0.04_{s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fcb874345a4beb183c629def69c4fe3
https://hdl.handle.net/1871/31521

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Search for the decay K→πν in the momentum region P<195 MeV/c

Publikováno v: Physics Letters B. 537:211-216

We have searched for the decay K + →π + ν ν in the kinematic region with pion momentum below the K + → π + π 0 peak. One event was observed, consistent with the background estimate of 0.73±0.18. This implies an upper limit on B(K + →π +

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5fb179d84bf83fce402f1a6f36f38cfa
https://doi.org/10.1016/s0370-2693(02)01911-1

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Measurement of Direct Photon Emission inK+→π+π0γDecay

Publikováno v: Physical Review Letters. 85:4856-4859

We have performed a measurement of the K + !� + � 0 decay and have observed 2×10 4 events. The best fit to the decay spectrum gives a branching ratio for direct photon emission of (4.7 ± 0.8 ± 0.3) × 10 6 in the � + kinetic energy region of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c698139dd69c99219860bf86d41d5ee
https://doi.org/10.1103/physrevlett.85.4856

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Measurement of Structure-Dependent K+→μ+νμγ Decay

Publikováno v: Physical Review Letters. 85:2256-2259

We report the first measurement of a structure-dependent component in the decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\gamma}$. Using the kinematic region where the muon kinetic energy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8996e0531405b6219c0727a5a15f4065
https://doi.org/10.1103/physrevlett.85.2256

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The first year of the HERA-B RICH

Publikováno v: IEEE Transactions on Nuclear Science. 47:789-792

The operational experience of the RICH detector for the first year at HERA-B is described. The design criteria, detector components, and reconstruction software are reviewed. The results show that the main design goals have been achieved.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83416feadca34984925331a15ee9de49
https://doi.org/10.1109/23.856517

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Aging measurements of a TMAE-based photon detector for the HERA-B RICH

Autor: T. Hamacher, M. Ispiryan, Kwong Lau, P. Križan, J. Pyrlik, Samo Korpar, P. Rose, D. Broemmelsiek, Kendall Reeves, P. Maas, R. F. Schwitters, A. S. Schwarz, M. S. Atiya, M. Starič, J. McGill, J. Rosen

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 433:92-97

We report on aging measurements of a photon detector candidate, based on proportional wire chambers operating in TMAE, for the HERA-B RICH. The detector consisted of 64 cells, each 100 mm long and 8×8 mm 2 in area, constructed with brass cathode and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dff3961ebb6b1218b6964135a9a6a33d
https://doi.org/10.1016/s0168-9002(99)00354-x

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The HERA-B RICH

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 433:128-135

The design issues and tests carried out with the ring imaging Cherenkov detector for the HERA-B experiment are reviewed. Results of on-the-bench tests of the employed photomultiplier tubes are reported together with the early commissioning measuremen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cfa945ea3649f28260d5eae49f725285
https://doi.org/10.1016/s0168-9002(99)00324-1

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