Message-Id: <200107200558.f6K5wfF1232248@fsgi03.fnal.gov> To: Makoto Sakuda <sakuda@neutrino.kek.jp> cc: opc.nuint01@neutrino.kek.jp, para@fsgi03.fnal.gov Subject: Re: TV conference Date: Fri, 20 Jul 2001 00:58:41 CDT From: Adam Para <para@fsgi03.fnal.gov> Dear Sakuda-san, I am available for the meeting. Jul. 27 is fine with me.. I have tried to re-work somewhat the annoncement. I think that making it more general is probably better. Enclosed is my version. It is far from perfect, but it may serve as a start.. Loking forward.. Adam ======================================================================== Adam Para para@fnal.gov Fermi National Accelerator Lab PHONE: (630)840-2132 Computing Division/Special Assignment Group FAX: (630)840-6039 ======================================================================== NuInt01 Workshop The discovery of the neutrino oscillations by the Super-Kamiokande (SK) experiment has opened a new chapter in neutrino physics.. Several experiments, running like K2K, or under construction like MiniBOONE, MINOS, ICARUS and OPERA are designed to confirm and to elucidate the neutrino oscillations phenomenon and to provide more precise measurement of the oscillations parameters. Detailed understanding of the pattern of neutrino masses and mixing may provide a vital clue to the realm of physics beyond the standard model. Very precise experiments are necessary to study the CP violation effects in the lepton sector, to study matter effects or to measure small mixing matrix elements, like Ue3. New generations of conventional neutrino beams as well a novel approach, that of neutrino factories based on muon storage ring are necessary for these next steps in the neutrino oscillations studies. Very high statistics of the future generation of the neutrino facilities is necessary to study subtle effects. To exploit this high statistics it will be necessary to control the systematics effects at the adequate level. Many of the proposed experiments will require studies of neutrino interactions at relatively low energies, in the range of 0.5 to 10 GeV. This is the least well known regime of the neutrino physics. Neutrino cross sections, both inclusive and exclusive, are known relatively poorly. As an example, a pi-zero production by neutral currents can be a serious background for numu to nue oscillation search. Nuclear effects, like Pauli blocking, binding energy or nuclear re-scattering may lead to a systematic shift of the observed energy of the final states and cause a systematic error on the determination of the oscillation parameters. A very similar effects may become important for the next generation of the proposed nucleon decay experiments.. The aim of the workshop is to review the knowledge of neutrino interactions in a few GeV region and to identify the principal sources of possible systematic effects. The goal is to formulate a coherent program of studies, both theoretical and experimental, to improve the level of understanding. New generation of neutrino beams in conjunction with electron beam facilities, like CEBAF, offer a realistic chance for a major improvement in the experimental data. Last, but not least, it is important to point out that the studies of nuclear effects and of low energy neutrino interactions are very interesting by themselves. We hope to bring together the interested communities to establish a common study program.
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