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IOP HEPP Particle Physics 2009

6–8 Apr 2009
University of Oxford
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Session

Parallel Session 3 C - Neutrinos and Double Beta Decay

PP03C
8 Apr 2009, 11:30
University of Oxford

University of Oxford

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Neutrinos and Double Beta Decay

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  1. 30. Particle Identification in the ND280 Electromagnetic Calorimeter
    Antony Carver (University of Warwick)
    08/04/2009, 11:30
    Neutrinos
    The ND280 calorimeter is a coarsely grained lead/scintillator detector. The coarse granularity presents challenges for particle identification. Progress in using an artificial neural network to separate MIP, electromagnetic showers and hadronic showers is presented.
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  2. 55. Lepton Asymmetries and their Evolution in the E6SSM
    Rui Luo (University of Glasgow)
    08/04/2009, 11:45
    Neutrinos
    We investigate leptogenesis in the E6 inspired Supersymmetric Standard Model. In this model, the gauge singlet right-handed neutrinos decay into ordinary leptons, exotic leptons and leptoquarks, all of which carry non-zero lepton number. Lepton asymmetries are calculated from loop diagram contributions to the right-handed neutrino decay. We find that lepton asymmetries can be enhanced...
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  3. 17. Anti neutrinos at MINOS
    David Auty (University of Sussex)
    08/04/2009, 12:00
    Neutrinos
    The NuMI beam used by the MINOS experiment has a 6% component of anti neutrinos. This coupled with the magnetised MINOS experiment allows us to measure dmbar^2 and sin 2 thetabar directly. If CPT is conserved these should be the same as dm^2 and sin 2 theta.
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  4. 50. Double Beta Decay of Zr96 using NEMO-3 and Calorimeter R&D for SuperNEMO
    Matthew Kauer (University College London)
    08/04/2009, 12:15
    Neutrinos
    Using 911 days of data from NEMO-3, a world best 2vBB decay half-life of Zr96 has been measured to be [2.36 +/-0.17(stat) +0.17 -0.14(syst)] x 10^19 yr. The obtained limit on the 0vBB decay half-life at the 90% confidence level is 8.5 x 10^21 yr which leads to the limit on the effective Majorana neutrino mass < 7.4 - 20.3 eV, using the RQRPA and pnQRPA nuclear models. SuperNEMO is a...
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  5. 49. SuperNEMO sensitivity to neutrinoless double beta decay via the mass mechanism and right handed currents
    Christopher Jackson (University of Manchester)
    08/04/2009, 12:30
    Double Beta Decay and Dark Matter
    SuperNEMO is a next generation neutrinoless double beta decay experiment currently in development, which will probe the inverted hierarchy neutrino mass region. The detector will consist of a double beta emitting foil of Se82 or Nd150 surrounded by a tracking chamber and calorimetry, which allows measurement of electron angular correlations and individual energies. These signatures can be used...
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  6. 53. Exploring the physics reach of a low-energy neutrino factory
    Tracey LI (University of Durham)
    08/04/2009, 12:45
    Neutrinos
    A 'neutrino factory' is seen as the ideal neutrino oscillation experiment of the future. We study the physics performance of a low-energy version of this experiment, in particular its sensitivity to theta_13, delta, the mass hierarchy and non-standard interactions, and aim to optimize its performance.
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