The $\theta _{13}$ and $\delta _{CP}$ sensitivities of the SPL-Fréjus project revisited

Abstract : An optimization of the CERN SPL beam line has been performed guided by the sensitivities to the \theta_{13} mixing angle and to the \delta_{CP} Dirac CP violating phase. A UNO-like 440 ktons water Cerenkov detector located at 130 km from the target in a new foreseen Frejus laboratory has been used as a generic detector. Concerning the \delta_{CP} independent \theta_{13} 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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Article dans une revue
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2006, 45, pp.643-657. <10.1140/epjc/s2005-02455-x>


http://hal.in2p3.fr/in2p3-00023374
Contributeur : Sabine Starita <>
Soumis le : mercredi 1 décembre 2004 - 15:59:25
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

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Jean-Eric Campagne, Antoine Cazes. The $\theta _{13}$ and $\delta _{CP}$ sensitivities of the SPL-Fréjus project revisited. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2006, 45, pp.643-657. <10.1140/epjc/s2005-02455-x>. <in2p3-00023374>

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