Publications (20)
Search for Intermediate Mass Magnetic Monopoles and Nuclearites with the SLIM experiment
S. Cecchini, T. Chiarusi, D. Di Ferdinando +19
SLIM is a large area experiment (440 m2) installed at the Chacaltaya cosmic ray laboratory since 2001, and about 100 m2 at Koksil, Himalaya, since 2003. It is devoted to the search…
The treatment and rejection of two "strange" candidate events in the SLIM experiment
S. Balestra, S. Cecchini, M. Cozzi +24
During the analysis of the CR39 Nuclear Track Detectors (NTDs) of the SLIM experiment exposed at the high altitude lab of Chacaltaya (Bolivia) we observed a sequence of puzzling et…
Search for exotic contributions to atmospheric neutrino oscillations
G. Battistoni, Y. Becherini, S. Cecchini +14
The energy spectrum of neutrino-induced upward-going muons in MACRO was analysed in terms of relativity principles violating effects, keeping standard mass-induced atmospheric neut…
Time variations in the deep underground muon flux measured by MACRO
Y. Becherini, S. Cecchini, M. Cozzi +15
More than 30 million of high-energy muons collected with the MACRO detector at the underground Gran Sasso Laboratory have been used to search for flux variations of different natur…
Magnetic Monopole Search at high altitude with the SLIM experiment
S. Balestra, S. Cecchini, M. Cozzi +23
The SLIM experiment was a large array of nuclear track detectors located at the Chacaltaya high altitude Laboratory (5230 m a.s.l.). The detector was in particular sensitive to Int…
Time variations in the deep underground muon flux
S. Cecchini, M. Cozzi, H. Dekhissi +12
More than 35 million high-energy muons collected with the MACRO detector at the underground Gran Sasso Laboratory have been used to search for flux variations of different nature.…
Calibration of the Makrofol Nuclear Track Detector using Relativistic Lead Ions
S. Cecchini, T. Chiarusi, M. Cozzi +12
We present the calibration of the Makrofol nuclear detector using Pb ions of 158 AGeV.
Results of the Search for Strange Quark Matter and Q-balls with the SLIM Experiment
S. Cecchini, M. Cozzi, D. Di Ferdinando +23
The SLIM experiment at the Chacaltaya high altitude laboratory was sensitive to nuclearites and Q-balls, which could be present in the cosmic radiation as possible Dark Matter comp…
Electron/pion separation with an Emulsion Cloud Chamber by using a Neural Network
L. Arrabito, D. Autiero, C. Bozza +46
We have studied the performance of a new algorithm for electron/pion separation in an Emulsion Cloud Chamber (ECC) made of lead and nuclear emulsion films. The software for separat…
Hardware performance of a scanning system for high speed analysis of nuclear emulsions
L. Arrabito, E. Barbuto, C. Bozza +45
The use of nuclear emulsions in very large physics experiments is now possible thanks to the recent improvements in the industrial production of emulsions and to the development of…
MACRO constraints on violation of Lorentz invariance
M. Cozzi
The energy spectrum of neutrino-induced upward-going muons in MACRO has been analysed in terms of relativity principles violating effects, keeping standard mass-induced atmospheric…
Search for spontaneous muon emission from lead nuclei
L. Arrabito, D. Autiero, E. Barbuto +41
We describe a possible search for muonic radioactivity from lead nuclei using the base elements ("bricks" composed by lead and nuclear emulsion sheets) of the long-baseline OPERA n…
Nuclear Track Detectors for Environmental Studies and Radiation Monitoring
S. Manzoor, S. Balestra, M. Cozzi +10
Several improvements were made for Nuclear Track Detectors (NTDs) used for environmental studies and for particle searches. A new method was used to determine the bulk etch rate of…
Bulk Etch Rate Measurements and Calibrations of Plastic Nuclear Track Detectors
S. Balestra, M. Cozzi, G. Giacomelli +15
New calibrations of CR39 and Makrofol nuclear track detectors have been obtained using 158 A GeV Pb (82+) and In (49+) ions; a new method for the bulk etch rate determination, usin…
Search for a Lorentz invariance violation contribution in atmospheric neutrino oscillations using MACRO data
G. Battistoni, Y. Becherini, S. Cecchini +14
Neutrino-induced upward-going muons in MACRO have been analysed in terms of relativity principles violating effects, keeping standard mass-induced atmospheric neutrino oscillations…
Measurement of the atmospheric muon charge ratio with the OPERA detector
OPERA Collaboration, N. Agafonova, A. Anokhina +182
The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric mu…
Time correlations of high energy muons in an underground detector
Y. Becherini, S. Cecchini, T. Chiarusi +18
We present the result of a search for correlations in the arrival times of high energy muons collected from 1995 till 2000 with the streamer tube system of the complete MACRO detec…
New limits on Magnetic Monopoles searches from accelerator and non-accelerator experiments
M. Cozzi
Here the status of the searches for ``classical Dirac'' Magnetic Monopoles (MMs) at accelerators and for GUT MMs in the cosmic radiation is discussed. We present recent analysis fo…
Track reconstruction in the emulsion-lead target of the OPERA experiment using the ESS microscope
L. Arrabito, C. Bozza, S. Buontempo +44
The OPERA experiment, designed to conclusively prove the existence of oscillations in the atmospheric sector, makes use of a massive lead-nuclear emulsion targ…
Nuclear Track Detectors for Particle Searches
S. Manzoor, S. Balestra, M. Cozzi +10
In this paper we report a search for intermediate mass magnetic monopoles and nuclearites using CR39 and Makrofol Nuclear Track Detectors (NTDs) of the SLIM large area experiment,…