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<supportEmail caption="Support">icrc2007@icrc2007.unam.mx</supportEmail>
<title>30th International Cosmic Ray Conference</title>
<description>The 30th International Cosmic Ray Conference will be held from July 3, 2007 to July 11, 2007 in Merida, Yucatan, Mexico.</description>
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 <name>Merida, Mexico</name>
 <address></address>
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<startDate>2007-07-03T08:00:00</startDate>
<endDate>2007-07-11T19:00:00</endDate>
<creationDate>2005-09-26T05:04:53</creationDate>
<modificationDate>2024-04-12T17:46:55</modificationDate>
<timezone>Mexico/General</timezone>
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  <name first="José" middle="" last="Valdés"></name>
  <organization>IGeof-UNAM</organization>
  <emailHash>40af9343b8bb9d18708b4f0252d5f53c</emailHash>
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 <title>LPM-effect included simulation of cosmic ray muons penetrating the CMS cavern</title>
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   <name first="Mohamed" middle="" last="SHERIF"></name>
   <organization>Cairo university</organization>
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   <title>Prof.</title>
   <name first="Mohamed" middle="" last="SHERIF"></name>
   <organization>Cairo university</organization>
   <emailHash>7d2c209217bacc0371321672b3cab9e3</emailHash>
  </user>
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   <title>Dr.</title>
   <name first="Ayman" middle="" last="Mahrous"></name>
   <organization>Helwan University</organization>
   <emailHash>f4bbe74ca6bf99765d0075092c78ed0a</emailHash>
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   <organization>Cairo University</organization>
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   <name first="Omer" middle="" last="Moussa"></name>
   <organization>Cisro University</organization>
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   <title>Mr.</title>
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   <organization>Suez Canal University</organization>
   <emailHash>d41d8cd98f00b204e9800998ecf8427e</emailHash>
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 <location>
  <name>Merida, Mexico</name>
  <address></address>
  <room>Regency (Hyatt)</room>
 </location>
 <abstract>We study the propagation of energetic muons produced by ultra high energy 
cosmic rays which could penetrate to the cavern of the CMS (Compact Muon 
Solenoid) tracing detector. The present work is based on our previous 
simulation proposed by Mahrous et al. [2005]. We have improved this model by 
(1) eliminating the ambiguity via adding Landau-Pomeranchuk-Migdal effect to 
the Monte Carlo code (2) using different incidence angles of the simulated air 
showers, (3) defining the actual contents of the CMS cavern concrete. Our 
results show that muons produced by air showers within the energy range 
1013 ~ 1020 eV injected to the CMS location could penetrate to its cavern with 
cutoff energy 37 GeV, the later should be detected as a background in the CMS 
detectors.</abstract>
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