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The Θ13 and δ CP sensitivities of the SPL-Fréjus project revisited

  • Experimental Physics
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Abstract.

An optimization of the CERN SPL beam line has been performed guided by the sensitivities to the Θ13 mixing angle and to the δ CP Dirac CP violating phase. A UNO-like 440 ktons water Čerenkov detector located at 130 km from the target in a new foreseen Fréjus laboratory has been used as a generic detector. Concerning the δ CP independent Θ13 sensitivity, a gain of about 20% may be reached using a 3.5 GeV proton beam with a 40 m long, 2 m radius decay tunnel compared to the up to now considered 2.2 GeV beam energy and 20 m long, 1 m radius decay tunnel. This may motivate new machine developments to upgrade the nominal SPL proton beam energy.

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Authors and Affiliations

  1. Université Paris-Sud, Laboratoire de l'Accélérateur Linéaire, Bât. 200, 91898, Orsay Cedex, BP 34, France

    J. E. Campagne & A. Cazes

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  1. J. E. Campagne
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  2. A. Cazes
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Correspondence to J. E. Campagne.

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Campagne, J.E., Cazes, A. The Θ13 and δ CP sensitivities of the SPL-Fréjus project revisited. Eur. Phys. J. C 45, 643–657 (2006). https://doi.org/10.1140/epjc/s2005-02455-x

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  • DOI: https://doi.org/10.1140/epjc/s2005-02455-x

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