The MONOLITH prototype

Ambrosio, M.; Bari, G.; Bencivenni, G.; Candela, A.; Chiarini, Alberto; Chignoli, F.; Deo, M. De; D’Incecco, M.; Gerli, S; Giusti, P.; Gomez, F. Perez; Gustavino, C.; Lindozzi, M.; Mannocchi, G.; Menghetti, H.; Morello, C.; Murtas, F.; Paoluzzi, G.; Pilastrini, R.; Redaelli, N.; Santoni, M.; Sartorelli, G.; Terranova, F.; Trinchero, G.

doi:10.1016/s0168-9002(00)00964-5

Cited by 16 publications

(14 citation statements)

References 3 publications

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“…For BM, an energy resolution of σ E /E = 68%/ √ E + 2% was reported [184], however no errors on the parameters A and B were specified. Our fit to the same BM data gives A BM = (66 ± 5)% and B BM = (1 ± 2)%, which also gives an estimation of errors on these parameters.…”

Section: Appendix D Hadron Energy Resolution As a Function Of Plate Tmentioning

confidence: 99%

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Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO)

et al. 2017

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The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the India-based Neutrino Observatory (INO) is designed to study the atmospheric neutrinos and antineutrinos separately over a wide range of energies and path lengths. The primary focus of this experiment is to explore the Earth matter effects by observing the energy and zenith angle dependence of the atmospheric neutrinos in the multi-GeV range. This study will be crucial to address some of the outstanding issues in neutrino oscillation physics, including the fundamental issue of neutrino mass hierarchy. In this document, we present the physics potential of the detector as obtained from realistic detector simulations. We describe the simulation framework, the neutrino interactions in the detector, and the expected response of the detector to particles traversing it. The ICAL detector can determine the energy and direction of the muons to a high precision, and in addition, its sensitivity to multi-GeV hadrons increases its physics reach substantially. Its charge identification capability, and hence its ability to distinguish neutrinos from antineutrinos, makes it an efficient detector for determining the neutrino mass hierarchy. In this report, we outline the analyses carried out for the determination of neutrino mass hierarchy and precision measurements of atmospheric neutrino mixing parameters at ICAL, and give the expected physics reach of the detector with 10 years of runtime. We also explore the potential of ICAL for probing new physics scenarios like CPT violation and the presence of magnetic monopoles. v Physics Potential of ICAL at INO vi PrefaceThe past two decades in neutrino physics have been very eventful, and have established this field as one of the flourishing areas of high energy physics. Starting from the confirmation of neutrino oscillations that resolved the decades-old problems of the solar and atmospheric neutrinos, we have now been able to show that neutrinos have nonzero masses, and different flavors of neutrinos mix among themselves. Our understanding of neutrino properties has increased by leaps and bounds. Many experiments have been constructed and envisaged to explore different facets of neutrinos, in particular their masses and mixing.The Iron Calorimeter (ICAL) experiment at the India-based Neutrino Observatory (INO) [1] is one of the major detectors that is expected to see the light of the day soon. It will have unique features like the ability to distinguish muon neutrinos from antineutrinos at GeV energies, and measure the energies of hadrons in the same energy range. It is therefore well suited for the identification of neutrino mass hierarchy, the measurement of neutrino mixing parameters, and many probes of new physics. The site for the INO has been identified, and the construction is expected to start soon. In the meanwhile, the R&D for the ICAL detector, including the design of its modules, the magnet coils, the active detector elements and the associated electronics, has been underway over the past deca...

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Section: Appendix D Hadron Energy Resolution As a Function Of Plate Tmentioning

confidence: 99%

“…The energy response of ICAL detector with 5cm thick iron plates with single pions in the energy range 2-10 GeV, propagated from a fixed vertex in the vertical direction[10] compared with the data from MONOLITH test beam run[184,185].…”

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confidence: 99%

Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO)

et al. 2017

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“…This replaces the graphite based varnish used in the past, as for the sample of detectors thoroughly tested in [16]. The surface resistivity of the coating is .…”

Section: Glass Rpcs: Design and Constructionmentioning

confidence: 99%

Aging measurements on glass RPCs

Ambrosio

Candela

Deo

et al. 2003

IEEE Trans. Nucl. Sci.

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Resistive plate chambers (RPC) are widely used as active elements in particle physics detectors.A deterioration of RPC performance with time has been observed in several experiments, after operation at high temperature or with water contamination in the gas mixture, both for detectors with bakelite electrodes and for the ones with float-glass electrodes.We have developed a kind of RPCs suitable for large scale industrial production. Float-glass is employed as electrode material, and the screen-printing technique is used to apply the resistive coating on the electrodes.A dedicated intensive measurement program on these detectors has been carried out, to assess their long-term behavior and aging properties under different operational conditions.

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“…The results showing the calibration of the detector to hadron energy and the corresponding hadron energy resolution have been presented in [37]. The study of the hadron response of the MONOLITH detector proposal was made in detail, both in computer simulations as well as by putting the prototype in a test beam [46,47]. The energy and angle resolution of the hadron shower has also been studied extensively by the MINOS collaboration.…”

Section: Earth Matter Effects In Hadron Eventsmentioning

confidence: 99%

Measuring the mass hierarchy with muon and hadron events in atmospheric neutrino experiments

Ghosh

Choubey

2013

J. High Energ. Phys.

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Neutrino mass hierarchy can be measured in atmospheric neutrino experiments through the observation of earth matter effects. Magnetized iron calorimeters have been shown to be good in this regard due to their charge identification capabilities. The charged current interaction of ν µ in this detector, produces a muon track and a hadron shower. The direction of the muon track can be measured very accurately. We show the improvement expected in the reach of this class of experiments to the neutrino mass hierarchy, as we improve the muon energy resolution and the muon reconstruction efficiency. We next propose to include the hadron events in the analysis, by tagging them with the zenith angle of the corresponding muon and binning the hadron data first in energy and then in zenith angle. To the best of our knowledge this way of performing the analysis of the atmospheric neutrino data has not be considered before. We show that the hadron events increase the mass hierarchy sensitivity of the experiment. Finally, we show the expected mass hierarchy sensitivity in terms of the reconstructed neutrino energy and zenith angle. We show how the detector resolutions spoil the earth matter effects in the neutrino channel and argue why the sensitivity obtained from the neutrino analysis cannot be significantly better than that obtained from the analysis using muon data alone. As a result, the best mass hierarchy sensitivity is obtained when we add the contribution of the muon and the hadron data. For sin 2 2θ 13 = 0.1, sin 2 θ 23 = 0.5, a muon energy resolution of 2%, reconstruction efficiency of 80% and exposure of 50 × 10 kton-year, we could get up to 4.5σ signal for the mass hierarchy from combining the muon and hadron data. The signal will go up when the atmospheric data is combined with data from other existing experiments, particularly NOνA.

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The MONOLITH prototype

Cited by 16 publications

References 3 publications

Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO)

Invited review: Physics potential of the ICAL detector at the India-based Neutrino Observatory (INO)

Aging measurements on glass RPCs

Measuring the mass hierarchy with muon and hadron events in atmospheric neutrino experiments

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