Neutrino parameters with magical beta-beam at INO

Agarwalla, Sanjib Kumar ; Choubey, Sandhya ; Raychaudhuri, Amitava (2008) Neutrino parameters with magical beta-beam at INO Journal of Physics: Conference Series, 136 (4). No pp. given. ISSN 1742-6588

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Official URL: http://iopscience.iop.org/1742-6596/136/4/042029

Related URL: http://dx.doi.org/10.1088/1742-6596/136/4/042029

Abstract

We have studied the physics reach of an experiment where neutrinos produced in a beta-beam facility at CERN are observed in a large magnetized iron calorimeter (ICAL) at the India-based Neutrino Observatory (INO). The idea of beta-beam is based on the production of a pure, intense, collimated beam of electron neutrinos or their antiparticles via the beta decay of accelerated radioactive ions circulating in a storage ring. Interestingly, the CERN-INO distance of 7152 km happens to be tantalizingly close to the so-called 'magic' baseline where the sensitivity to the neutrino mass ordering (sign of Δm231≡m23-m21) and more importantly, θ13, goes up significantly, while the sensitivity to the unknown CP phase is absent. This permits such an experiment involving the golden P channel to make precise measurements of the mixing angle θ13 and neutrino mass hierarchy avoiding the issues of intrinsic degeneracies and correlations which plague other baselines.

Item Type:Article
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ID Code:43279
Deposited On:11 Jun 2011 04:50
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