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Title: The calorimeter of the Mu2e experiment at Fermilab

Here, the Mu2e experiment at Fermilab looks for Charged Lepton Flavor Violation (CLFV) improving by 4 orders of magnitude the current experimental sensitivity for the muon to electron conversion in a muonic atom. A positive signal could not be explained in the framework of the current Standard Model of particle interactions and therefore would be a clear indication of new physics. In 3 years of data taking, Mu2e is expected to observe less than one background event mimicking the electron coming from muon conversion. Achieving such a level of background suppression requires a deep knowledge of the experimental apparatus: a straw tube tracker, measuring the electron momentum and time, a cosmic ray veto system rejecting most of cosmic ray background and a pure CsI crystal calorimeter, that will measure time of flight, energy and impact position of the converted electron. The calorimeter has to operate in a harsh radiation environment, in a 10 -4 Torr vacuum and inside a 1 T magnetic field. The results of the first qualification tests of the calorimeter components are reported together with the energy and time performances expected from the simulation and measured in beam tests of a small scale prototype.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3] ;  [1] ;  [2] ;  [4] ;  [5] ;  [6] ;  [7] ;  [7] ;  [3] ;  [1] ;  [8] ;  [3] ;  [7] more »;  [9] ;  [3] ;  [7] ;  [10] ;  [11] ;  [2] ;  [7] ;  [2] ;  [2] ;  [9] ;  [3] ;  [3] ;  [12] ;  [8] ;  [1] ;  [1] ;  [7] « less
  1. Joint Institute for Nuclear Research, Dubna (Russia)
  2. INFN, Pisa (Italy)
  3. INFN, Frascati (Italy)
  4. INFN, Frascati (Italy); Univ. di Roma Tor Vergata, Rome (Italy)
  5. INFN, Pisa (Italy); Univ. di Pisa, Pisa (Italy)
  6. INFN, Frascati (Italy); Univ. degli Studi Roma Tre, Rome (Italy)
  7. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  8. INFN, Lecce (Italy)
  9. INFN, Frascati (Italy); Univ. "Guglielmo Marconi", Roma (Italy)
  10. INFN, Pisa (Italy); Univ. di Siena, Siena (Italy)
  11. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  12. INFN, Sezione di Pisa, Pisa (Italy)
Publication Date:
Report Number(s):
FERMILAB-CONF-17-037-E; arXiv:1701.07975
Journal ID: ISSN 1748-0221; 1510719; TRN: US1700942
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 12; Journal Issue: 01; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
Mu2e
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; calorimeters; radiation-hard detectors
OSTI Identifier:
1346827

Atanov, N., Baranov, V., Budagov, J., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Dane, E., Davydov, Y. I., Falco, S. Di, Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Flood, K., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pezzullo, G., Porter, F., Raffaelli, F., Radicioni, T., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., and Zhu, R. Y.. The calorimeter of the Mu2e experiment at Fermilab. United States: N. p., Web. doi:10.1088/1748-0221/12/01/C01061.
Atanov, N., Baranov, V., Budagov, J., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Dane, E., Davydov, Y. I., Falco, S. Di, Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Flood, K., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pezzullo, G., Porter, F., Raffaelli, F., Radicioni, T., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., & Zhu, R. Y.. The calorimeter of the Mu2e experiment at Fermilab. United States. doi:10.1088/1748-0221/12/01/C01061.
Atanov, N., Baranov, V., Budagov, J., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Dane, E., Davydov, Y. I., Falco, S. Di, Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Flood, K., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pezzullo, G., Porter, F., Raffaelli, F., Radicioni, T., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., and Zhu, R. Y.. 2017. "The calorimeter of the Mu2e experiment at Fermilab". United States. doi:10.1088/1748-0221/12/01/C01061. https://www.osti.gov/servlets/purl/1346827.
@article{osti_1346827,
title = {The calorimeter of the Mu2e experiment at Fermilab},
author = {Atanov, N. and Baranov, V. and Budagov, J. and Cervelli, F. and Colao, F. and Cordelli, M. and Corradi, G. and Dane, E. and Davydov, Y. I. and Falco, S. Di and Diociaiuti, E. and Donati, S. and Donghia, R. and Echenard, B. and Flood, K. and Giovannella, S. and Glagolev, V. and Grancagnolo, F. and Happacher, F. and Hitlin, D. G. and Martini, M. and Miscetti, S. and Miyashita, T. and Morescalchi, L. and Murat, P. and Pezzullo, G. and Porter, F. and Raffaelli, F. and Radicioni, T. and Ricci, M. and Saputi, A. and Sarra, I. and Spinella, F. and Tassielli, G. and Tereshchenko, V. and Usubov, Z. and Zhu, R. Y.},
abstractNote = {Here, the Mu2e experiment at Fermilab looks for Charged Lepton Flavor Violation (CLFV) improving by 4 orders of magnitude the current experimental sensitivity for the muon to electron conversion in a muonic atom. A positive signal could not be explained in the framework of the current Standard Model of particle interactions and therefore would be a clear indication of new physics. In 3 years of data taking, Mu2e is expected to observe less than one background event mimicking the electron coming from muon conversion. Achieving such a level of background suppression requires a deep knowledge of the experimental apparatus: a straw tube tracker, measuring the electron momentum and time, a cosmic ray veto system rejecting most of cosmic ray background and a pure CsI crystal calorimeter, that will measure time of flight, energy and impact position of the converted electron. The calorimeter has to operate in a harsh radiation environment, in a 10-4 Torr vacuum and inside a 1 T magnetic field. The results of the first qualification tests of the calorimeter components are reported together with the energy and time performances expected from the simulation and measured in beam tests of a small scale prototype.},
doi = {10.1088/1748-0221/12/01/C01061},
journal = {Journal of Instrumentation},
number = 01,
volume = 12,
place = {United States},
year = {2017},
month = {1}
}