Dr
Davide Meloni
(Universita' di Roma 3)
5/20/09, 9:00 AM
CC and NC quasi-elastic scattering
Talk
In this talk I analize the influence of nuclear effects on the determination of the nucleon axial mass from nuclear cross sections computed in the impulse approximation regime. We show that correlation effects, not taken into account by the relativistic Fermi gas model, sizably affect the Q2-dependence of the cross section but do not explain the large values of the axial mass recently reported...
Chris Walter
(Duke University)
5/20/09, 9:20 AM
CC and NC quasi-elastic scattering
Talk
We report the development of a proton identification method for the \superk detector. This new tool is applied to the search for events with a single proton track, a high purity neutral current sample of interest for sterile neutrino searches. After selection using a neural network, we observe 38 events in the combined SK-I and SK-II data corresponding to 2285.1 days of exposure, with an...
Rex Tayloe
(Indiana University)
5/20/09, 9:40 AM
CC and NC quasi-elastic scattering
Talk
MiniBooNE is an experiment operated at Fermilab looking for neutrino oscillations at $\Delta m^2 \sim 1eV^2$. MiniBooNE uses a neutrino beam produced from 8 GeV protons from the Fermilab Booster incident on a Be target. The Cerenkov detector located 541m from the target is a 12m diameter sphere filled with mineral oil and instrumented with 1280 inner and 240 veto PMTs. Neutral current elastic...
Hideyuki Takei
(Tokyo Institute of Technology)
5/20/09, 10:05 AM
CC and NC quasi-elastic scattering
Talk
The cross-section for neutrino-nucleon neutral current (NC) elastic scattering contains the axial vector form factor G_A(Q2) as well as electromagnetic form factors unlike electromagnetic interaction. G_A is proportional to strange part of nucleon spin (Δs) in Q2→0 limit. Measurement of NC elastic cross-section with smaller Q2 enables us to access Δs. Signal of NC elastic scattering is a...
