On the differences between high-energy proton and pion showers and their signals in a non-compensating calorimeter

N. Akchurin, S. Ayan, Gy L. Bencze, K. Chikin, H. Cohn, S. Doulas, I. Dumanoǧlu, E. Eskut, A. Fenyvesi, A. Ferrando, M. C. Fouz, O. Ganel, V. Gavrilov, Y. Gershtein, C. Hajdu, J. Iosifidis, M. I. Josa, A. Kayis, A. Khan, S. B. KimV. Kolosov, S. Kuleshov, A. Kuzucu-Polatoz, J. Langland, D. Litvintsev, J. P. Merlo, J. Molnar, A. Nikitin, Y. Onel, G. Önengüt, D. Osborne, N. Özdeş-Koca, H. Oztürk, A. Penzo, E. Pesen, V. Podrasky, A. Rosowsky, J. M. Salicio, C. Sanzeni, R. Sever, H. Silvestri, V. Stolin, L. Sulak, J. Sullivan, A. Ulyanov, S. Uzunian, G. Vesztergombi, R. Wigmans*, D. Winn, R. Winsor, A. Yumashev, P. Zalan, M. Zeyrek

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


We present the results of experimental studies of hadron showers in a copper/quartz-fiber calorimeter, based on the detection of Cherenkov light. These studies show that there are very significant differences between the signals from protons and pions at the same energies. In the energy range between 200 and 375GeV, where these studies were performed, the calorimeter's response to protons was typically 10% smaller than the response to pions. On the other hand, the energy resolution was about 25% better for protons. In addition, the protons had a Gaussian line shape, whereas the pion response curve was asymmetric. These differences can be understood from the requirements of baryon number conservation in the shower development. They are expected to be present in any non-compensating calorimeter, to a degree determined by the e/h value.

Original languageEnglish
Pages (from-to)380-396
Number of pages17
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - May 11 1998
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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