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Title: Test beam performance measurements for the Phase I upgrade of the CMS pixel detector

Journal Article · · Journal of Instrumentation
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  1. Inst. for High Energy Physics, Wien (Austria)
  2. Helsinki Inst. of Physics (Finland)
  3. Univ. of Helsinki (Finland). Dept. of Physics
  4. Lappeenranta Univ. of Technology, Lappeenranta (Finland)
  5. Univ. de Lyon, Villeurbanne (France). Inst. de Physique Nucleaire de Lyon
  6. Univ. de Strasbourg (France)
  7. RWTH Aachen Univ. (Germany). I. Physikalisches Inst.
  8. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  9. Univ. of Hamburg (Germany)
  10. Karlsruhe Inst. of Technology (KIT) (Germany). Inst. fur Experimentelle Kernphysik
  11. Karlsruhe Inst. of Technology (KIT) (Germany). Inst. fur Experimentelle Kernphysik
  12. Wigner Research Centre for Physics, Budapest (Hungary)
  13. Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy)
  14. Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy); Politecnico di Bari (Italy)
  15. Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy); Univ. of Bari (Italy)
  16. Istituto Nazionale di Fisica Nucleare (INFN), Catania (Italy); Univ. of Catania (Italy)
  17. Istituto Nazionale di Fisica Nucleare (INFN), Catania (Italy)
  18. Istituto Nazionale di Astrofisica (INAF), Firenze (Italy); Univ. di Firenze (Italy)
  19. Istituto Nazionale di Fisica Nucleare (INFN), Milano-Bicocca (Italy); Univ. di Milano-Bicocca (Italy)
  20. Istituto Nazionale di Fisica Nucleare (INFN), Milano-Bicocca (Italy)
  21. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy)
  22. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy); Univ. di Padova (Italy)
  23. Istituto Nazionale di Fisica Nucleare (INFN), Perugia (Italy); Univ. di Perugia (Italy)
  24. Istituto Nazionale di Fisica Nucleare (INFN), Perugia (Italy)
  25. Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)
  26. Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy); Univ. of Pisa (Italy)
  27. Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy); Scuola Normale Superiore (SNS), Pisa (Italy)
  28. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  29. Federal Inst. of Technology, Zurich (Switzerland). Inst. for Particle Physics
  30. Univ. of Zurich (Switzerland)
  31. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  32. National Taiwan Univ., Taipei (Taiwan)
  33. Univ. of Bristol (United Kingdom)
  34. Brunel Univ., Uxbridge (United Kingdom)
  35. Imperial College, London (United Kingdom)
  36. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
  37. Univ. of California, Davis, CA (United States)
  38. Univ. of California, Riverside, CA (United States)
  39. The Catholic Univ. of America, Washington, DC (United States)
  40. Univ. of Colorado, Boulder, CO (United States)
  41. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  42. Univ. of Illinois, Chicago, IL (United States)
  43. The Ohio State Univ., Columbus, OH (United States)
  44. Purdue Univ. Calumet, Hammond, IN (United States)
  45. Purdue Univ., West Lafayette, IN (United States)
  46. Univ. of Kansas, Lawrence, KS (United States)
  47. Kansas State Univ., Manhattan, KS (United States)
  48. Johns Hopkins Univ., Baltimore, MD (United States)
  49. Univ. of Mississippi, Oxford, MS (United States)
  50. Univ. of Nebraska, Lincoln, NE (United States)
  51. Rutgers Univ., Piscataway, NJ (United States)
  52. Univ. of Puerto Rico, Mayaguez (Puerto Rico)
  53. State Univ. of New York (SUNY), Buffalo, NY (United States)
  54. Cornell Univ., Ithaca, NY (United States)
  55. Rice Univ., Houston, TX (United States)
  56. Vanderbilt Univ., Nashville, TN (United States)
  57. Univ. of Tennessee, Knoxville, TN (United States)
+ Show Author Affiliations

A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase~I Upgrade of the LHC. The new CMS pixel detector provides four-hit tracking with a reduced material budget as well as new cooling and powering schemes. A new front-end readout chip mitigates buffering and bandwidth limitations, and allows operation at low comparator thresholds. Here in this paper, comprehensive test beam studies are presented, which have been conducted to verify the design and to quantify the performance of the new detector assemblies in terms of tracking efficiency and spatial resolution. Under optimal conditions, the tracking efficiency is $$99.95\pm0.05\,\%$$, while the intrinsic spatial resolutions are $$4.80\pm0.25\,\mu \mathrm{m}$$ and $$7.99\pm0.21\,\mu \mathrm{m}$$ along the $$100\,\mu \mathrm{m}$$ and $$150\,\mu \mathrm{m}$$ pixel pitch, respectively. The findings are compared to a detailed Monte Carlo simulation of the pixel detector and good agreement is found.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1367899
Report Number(s):
FERMILAB-PUB-17-217-CMS; CMS-NOTE-2017-002; 1602169
Journal Information:
Journal of Instrumentation, Vol. 12, Issue 05; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (14)

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journal May 2010
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journal November 2010
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General broken lines as advanced track fitting method journal May 2012
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Linked Research (1)

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