scholarly journals Finding The Charm In 800 GeV/c p-Cu and p-Be Single Muon Spectra

2005 ◽  
Author(s):  
Stephen A. Klinksiek
Keyword(s):  
1979 ◽  
Vol 43 (6) ◽  
pp. 410-413 ◽  
Author(s):  
K. W. Brown ◽  
B. C. Barish ◽  
J. F. Bartlett ◽  
A. Bodek ◽  
M. H. Shaevitz ◽  
...  
Keyword(s):  

1994 ◽  
Vol 2 (2) ◽  
pp. 103-116 ◽  
Author(s):  
M. Aglietta ◽  
B. Alpat ◽  
E.D. Alyea ◽  
P. Antonioli ◽  
G. Anzivino ◽  
...  

1995 ◽  
Vol 3 (4) ◽  
pp. 311-320 ◽  
Author(s):  
M. Aglietta ◽  
B. Alpat ◽  
E.D. Alyea ◽  
P. Antonioli ◽  
G. Badino ◽  
...  
Keyword(s):  

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2041-2047 ◽  
Author(s):  
HENG-TONG DING ◽  
ANDREA DAINESE ◽  
ZAIDA CONESA DEL VALLE ◽  
DAICUI ZHOU

The effects of heavy quarks energy loss on the transverse momentum spectra of single muons are studied. The energy loss of heavy quarks when traversing the medium formed in PbPb collisions at [Formula: see text] is calculated by implementing the collision geometry and the quenching weights. The medium density is assumed to decrease at forward pseudo-rapidity and to be proportional with pseudo-rapidity multiplicity dN/dη. Muons from W decays can be used as a medium-blind reference to quantify the effect of heavy quarks energy loss on the single muon production.


2019 ◽  
Vol 34 (36) ◽  
pp. 1942026
Author(s):  
M. Rosenthal ◽  
D. Banerjee ◽  
J. Bernhard ◽  
M. Brugger ◽  
N. Charitonidis ◽  
...  

The Physics Beyond Colliders study investigates the feasibility of future projects and experiments using CERN facilities. In the scope of this study, a future operation of the NA62 experiment using the existing K12 beam line operated in beam dump mode is discussed. Such a setup allows for a search for dark sector particles, e.g. heavy neutral leptons, dark photons and axions. Production of these hypothetical particles requires the 400GeV/c proton beam extracted from the Super Proton Synchrotron (SPS) to be dumped on a massive dump collimator located in the first part of the K12 beam line. The decay of these dark sector particles, for example, into muons could be detected by the NA62 experimental setup. However, muons created in particle interactions with material and from in-flight decays of secondary hadrons pose a critical background for this kind of experiment. Magnetic sweeping serves as an efficient tool for reducing this background. This paper discusses the simulation studies conducted with the software framework G4beamline to reduce the expected single-muon rate for this experiment. The required beam line modifications, in particular the removal of the beryllium target and repositioning of the dump, have been implemented into this model. A comparison of simulated muon distributions and spectra available experimental data, already taken in test runs, has been made in order to validate the beam line simulation. Finally, additional beam line modifications to further suppress the muon background are elaborated upon. These studies show a potential further reduction of a factor four of the total single-muon rate relative to the nominal setup over the full momentum range, and up to a factor twenty considering only muons with momenta [Formula: see text].


2005 ◽  
Vol 20 (29) ◽  
pp. 6968-6970
Author(s):  
M. N. MAZZIOTTA ◽  
M. BRIGIDA ◽  
C. FAVUZZI ◽  
P. FUSCO ◽  
F. GARGANO ◽  
...  

The MACRO detector was located in the Hall B of the Gran Sasso underground Laboratories under an average rock overburden of 3700 hg/cm2. A TRD composed by three identical modules, covering an horizontal area of 36 m2, was added to the MACRO detector in order to measure the residual energy of muons entering MACRO. This kind of measurement provides a useful tool to study the primary cosmic ray energy spectra and composition, their interactions with the Earth's atmosphere and the propagation of muons inside the rock. The results of the measurement of the energy of single and double muons crossing MACRO will be presented. Our data show that double muons are more energetic than single ones in the rock depth range from 3000 to 6500 hg/cm2. Single muon data confirm the reliability of the models adopted to describe the cosmic ray interactions with the atmosphere and the muon propagation inside the rock.


2021 ◽  
Vol 81 (5) ◽  
Author(s):  
M. Abbrescia ◽  
C. Avanzini ◽  
L. Baldini ◽  
R. Baldini Ferroli ◽  
G. Batignani ◽  
...  

AbstractThis paper describes the simulation framework of the extreme energy events (EEE) experiment. EEE is a network of cosmic muon trackers, each made of three multi-gap resistive plate chambers (MRPC), able to precisely measure the absolute muon crossing time and the muon integrated angular flux at the ground level. The response of a single MRPC and the combination of three chambers have been implemented in a GEANT4-based framework (GEMC) to study the telescope response. The detector geometry, as well as details about the surrounding materials and the location of the telescopes have been included in the simulations in order to realistically reproduce the experimental set-up of each telescope. A model based on the latest parametrization of the cosmic muon flux has been used to generate single muon events. After validating the framework by comparing simulations to selected EEE telescope data, it has been used to determine detector parameters not accessible by analysing experimental data only, such as detection efficiency, angular and spatial resolution.


1973 ◽  
Vol 65 (2) ◽  
pp. 540-543 ◽  
Author(s):  
K.J. Evans
Keyword(s):  

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