3-11 July 2007
Merida, Mexico
Mexico/General timezone
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HE 2.1

Place

Location: Merida, Mexico
Room: Kabah (Holiday Inn)
Date: 5 Jul 08:30 - 11:57

Timetable | Contribution List

Displaying 7 contributions out of 7
Type: Oral Session: HE 2.1
Track: HE.2.1
ACORDE (ALICE cosmic ray detector) is one of the ALICE detectors, presently in construction. It will consist of an array of plastic scintillator counters placed on the three upper faces of the magnet. This array will act as the cosmic ray trigger for ALICE calibration, as well as multiple muon trigger to study high energy cosmic rays. ACORDE, together with other ALICE subdetectors, will prov ... More
Presented by Dr. Arturo FERNANDEZ TELLEZ on 5/7/2007 at 14:30
Type: Oral Session: HE 2.1
Track: HE.2.1
Using data of the L3+Cosmics experiment, a preliminary measurement of the muon multiplicity distribution is presented. These are compared to Monte Carlo simulation results obtained with the CORSIKA/QGSJET code. Below the "knee" of the primary spectrum 20% more muons are observed than expected. Taking into account the uncertainty of the present primary spectrum measurements, no abnormal phen ... More
Presented by Prof. Yuqian MA on 5/7/2007 at 16:45
Type: Oral Session: HE 2.1
Track: HE.2.1
MINOS is the first large magnetic detector deep underground and is the first to measure the muon charge ratio with high statistics in the region near 1 TeV. An approximate formula for the muon charge ratio can be expressed in terms of epsilon_pi = 115 Gev, epsilon_K = 850 GeV and E_mu times cosine theta-zenith. The implications for K production in the atmosphere will be discussed.
Presented by Dr. Maury GOODMAN on 5/7/2007 at 13:42
Type: Oral Session: HE 2.1
Track: HE.2.1
The 980 ton MINOS Near Detector is located at the end of the NuMI beam facility at Fermilab in a 100 m deep underground cavern. It was designed to study neutrino oscillations with the Fermilab NuMI beam in conjunction with the MINOS Far Detector. The magnetized Near Detector has been recording charge-separated atmospheric cosmic-ray muons since January 2005. A preliminary measurement of the Mu ... More
Presented by Dr. Jeffrey DE JONG on 5/7/2007 at 13:54
Type: Oral Session: HE 2.1
Track: HE.2.1
The complete 5.4 kton MINOS far detector has been taking charge-separated cosmic ray muon data since the beginning of August, 2003 at a depth of 2070 meters water-equivalent in the Soudan mine, Minnesota. The data with both normal and reversed magnetic field running configurations were combined to minimize residual systematic errors in the charge ratio. Using the map of the Soudan rock overb ... More
Presented by Prof. Stuart MUFSON on 5/7/2007 at 14:18
Type: Oral Session: HE 2.1
Track: HE.2.1
The 5.4 kT MINOS Far Detector (Fardet) has accumulated 45 million cosmic-ray induced muon tracks at a depth of 2100 mwe since it began operation in 2003. An analysis of the muon intensity over the time of detector running has revealed periodic fluctuations, which are correlated with temperature fluctuations in the upper atmosphere. This agrees with the theoretical expectation for muon ... More
Presented by Eric GRASHORN on 5/7/2007 at 13:30
Type: Oral Session: HE 2.1
Track: HE.2.1
The Pyramid of the Sun, at Teotihuacan, Mexico, is being searched for possible hidden chambers, using a muon tracking technique inspired in the experiment carried out by Luis Alvarez over 30 years ago at the Chephren Pyramid, in Giza. A fortunate similarity between this monument and the Pyramid of the Sun is a tunnel, running 8 m below the base and ending close to the symmetry axis, whic ... More
Presented by Dr. Arturo MENCHACA-ROCHA on 5/7/2007 at 14:06
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