Accès ouvert déclaré
2007
article
Energy Response and Longitudinal Shower Profiles Measured in CMS HCAL and Comparison With Geant4
G. Baiatian, M. Hashemi, Sharon Hagopian, Andras Pal, Emanuel Machado, E. Isiksal, T. Haelen, David Sanders, Grigory Safronov, J. E. Elias, György Bencze, A. I. Demianov, Kenneth Carrell, Fernando Varela, Irina Vardanyan, P. Zalán, Vivian O’Dell, C. Sanzeni, R. Stefanovich, A. Khmelnikov, Jeremy Mans, Cigdem Özkan, V. E. Barnes, J. Rohlf, Yeon Sei Chung, D. Elvira, Halil Özkurt, S. Sharma, A. Ulyanov, L. Litov, S.R. Chendvankar, A. Korablev, L. Reddy, A. Volodko, S. Los, I. Kosarev, Jas Singh, S. Banerjee, N. Akchurin, R. Thomas, Tullio Grassi, I. Suzuki, I. Dumanoğlu, Arjan Hendrix Heering, C. Tully, Robert L. Bard, A. Polatöz, J. Freeman, S. Özkorucuklu, H. Gamsizkan, V. Kalagin, S. Cerci, S. Semenov, L.K. Turchanovich, H. Mermerkaya, A. Vishnevskiy, I. Vankov, L. H. Kramer, I. Schmidt, A. Bodek, E. Vlassov, M. L. Miller, S. Piperov, A. Petrosian, Randy Ruchti, A. T. Laasanen, Daniel John Karmgard, S. Sekmen, J. M. Kohli, P. Moissenz, V.I. Genchev, Podrasky, V. Kaftanov, E. Yazgan, Mandakini Ravindra Patil, S. B. Beri, M. Mohammadi Najafabadi, I. Emeliantchik, Kryshkin, Y. Onel, K. Dindar, R. Vidal, Sergey Sergeyev, S. Koylu, P. Cushman, E. Gülmez, A. N. Krinitsyn, H. S. Budd, C. Lawlor, M. Serin-Zeyrek, O. Kodolova, Pavel Sorokin, Yousi Ma, Arun Kumar, Alexi Mestvirishvili, Heejong Kim, A. M. Guler, V. V. Talov, U. Akgun, Bannaje Sripathi Acharya, Naba Kumar Mondal, T. de Visser, Kolossov, Á. László, S. Aydin, B. Sherwood, Л. Дімітров, Taylan Yetkin, C. Jarvis, Juliana Whitmore, B. Satyanarayana, D. Winn, Mehmet Zeyrek, R. Ralich, V. A. Pikalov, I. Golutvin, A. Kayis Topaksu, V. P. Ladygin, Viatcheslav Stolin, R. Sever, J.-P. Merlo, I. Vodopiyanov, K. Sogut, D. Lazic, Huseyin Topakli, J. M. Hauptman, R. G. Kellogg, A. Ronzhin, L. Sarycheva, G. Mescheryakov, Y. Gershtein, Sergey Petrushanko, P. Nagaraj, Shouxiang Wu, Andris Skuja, Nikolai Shumeiko, V. Abramov, E. Eşkut, Pelin Kurt, V. Gavrilov, N. P. Ilyina, A. Ryazanov, M. Spezziga, Albert M. Sirunyan, S. Dugad, Kurtis F. Johnson, Mehmet Deliomeroglu, Yury Korneev, J. Olson, F. Duru, Mustafa Numan Bakirci, J. Reidy, V. Bhatnagar, Harinder Singh Bawa, V. Smirnov, Senchishin, M. Arcidy, Kazım Gümüş, T. Camporesi, A. Fenyvesi, E. Hazen, Stephan Linn, A. Krokhotin, Drew Baden, L. Levchuk, W. C. Fisher, Dmitri Litvintsev, Edwin Norbeck, György Vesztergombi, S. Paktinat, Alexey Kalinin, S. Abdullin, Katta Sudhakar, G. Önengüt, M. M. Baarmand, K. Cankoçak, S. C. Eno, Sunanda Banerjee, J. Damgov, A. A. Yershov, Sergey Kuleshov, P. Markowitz, Anatoli Zarubin, Massolov, Dan Green, A. Gribushin, Alexey Volkov, V. Hagopian, Teplov, Mehmet Vergili, Srikanth Reddy Katta, Petr Goncharov, A. Esendemir, M. Kaur, Pawel de Barbaro, Shuichi Kunori, I. Kisselevich, Lucien Marcus Cremaldi, V. Lukanin, S.D. Kalmani, S. Ayan, M. Kaya
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Le résumé fourni par la source
The response of the CMS combined electromagnetic and hadron calorimeter to beams of pions with momenta in the range 5-300 GeV/c has been measured in the H2 test beam at CERN. The raw response with the electromagnetic compartment calibrated to electrons and the hadron compartment calibrated to 300 GeV pions may be represented by sigma = (1.2) sqrt{E} oplus (0.095) E. The fraction of energy visible in the calorimeter ranges from 0.72 at 5 GeV to 0.95 at 300 GeV, indicating a substantial nonlinearity. The intrinsic electron to hadron ratios are fit as a function of energy and found to be in the range 1.3-2.7 for the electromagnetic compartment and 1.4-1.8 for the hadronic compartment. The fits are used to correct the non-linearity of the e pi response to 5% over the entire measured range resulting in a substantially improved resolution at low energy. Longitudinal shower profile have been measured in detail and compared to Geant4 models, LHEP-3.7 and QGSP-2.8. At energies below 30 GeV, the data, LHEP and QGSP are in agreement. Above 30 GeV, LHEP gives a more accurate simulation of the longitudinal shower profile.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
Particle Accelerators and Free-Electron LasersParticle physics theoretical and experimental studiesAstrophysics and Cosmic Phenomena