Message-ID: <41DB6EB6.2040303@neutrino.kek.jp> Date: Wed, 05 Jan 2005 13:36:06 +0900 From: koichiro Nishikawa <nishikaw@neutrino.kek.jp> Subject: [Fwd: December 2004 long-baseline neutrino newsletter] -------- Original Message -------- Subject: December 2004 long-baseline neutrino newsletter Date: Tue, 04 Jan 2005 15:34:04 -0600 From: Maury Goodman at Argonne <mcg@hep.anl.gov> To: LONGBNEWS@FNAL.GOV CC: MCG@hep.anl.gov Long-Baseline Neutrino News December 2004 *** First NuMI/MINOS pulses Commissioning of the NuMI primary proton beam has begun. Protons from the Main Injector were kicked into the NuMI extraction channel and transported through the accelerator enclosure, down the NuMI stub and carrier tunnel, through the pretarget area, the two focussing horns, and finally down the 675 m long decay region to the center of the hadron absorber. The NuMI commissioning team did this using only 10 carefully planned Main Injector pulses! See http://www.hep.utexas.edu/~kopp/firstbeam/first-beam.pdf *** Not TSUNAMI Back when MINOS was known as P875, a naming contest was held. It was decided not to name it the "Tower-Soudan Underground Neutrinos At the Main Injector". *** TSUNAMI in Illinois? During the last Fermilab shutdown, motion sensors were installed on all of the magnets, making the Tevatron a sensitive seismograph. Large spikes seen at the time of the Boxing Day earthquake are being studied. *** T2K receives final approval The Japanese Government has given final approval to the new long-baseline neutrino beam from the new JPARC accelerator in Tokai to the Super-Kamiokande site. (290 km) This had been approved, then rejected, then reapproved last year. It is now categorized as a Class A project with a 2009 start. An international collaboration is planning near detectors, and Super-K will be re-outfitted with twice as many phototubes (i.e. back to the pre-accident phototube coverage). *** MiniBooNE run extended through 2006 One key decision of the Fermilab November PAC meeting was to extend MiniBooNE running in FY2006. This was approved. Further running (which might include antinuetrinos) will require a proposal, for which the results of the first phase will be a important input. MiniBooNE projects obtaining its first results on nu_mu -> nu_e oscillations in fall of 2005. *** NIWA wins Nishina prize Professor Kimio Niwa from Nagoya University was awarded the 2004 Nishina memorial prize. The prize was awarded for his detection of the Tau neutrino in the Fermilab emulsion DONUT experiment. The Nishina-prize is one of the important prizes of Physics in Japan. http://www.nishina-mf.or.jp/ *** DUSEL solicitation The deadline for Solicitation 2 for the Deep Underground Science and Engineering Laboratory Site and Conceptual Designs has been postponed from 10-Jan-05 to 28-Feb-05. NSF also wants to note that anyone who has submitted a proposal in advance of the old deadline can withdraw that proposal, modify it, and resubmit it before the new deadline if they wish. http://www.dusel.org/ *** NNN Workshop in Aussois 7-9 April The NNN05 workshop which will be held in France at Aussois near the underground national lab (LSM) from 7-9-APR-05. NNN stands for Next Nucleon Decay and Neutrino detector. *** 4th FLENE registration deadline 21-Jan The Workshop on Future Low-Energy Neutrino Experiments in Angra Brazil will be 23-25 Feb-05. http://www.ifi.unicamp.br/~lenews05/ *** Who Saw See-Saws When (3) After two previous long-baseline newsletters (Aug03 & Aug04) reviewed the 1979 conference proceedings in which the see-saw mechanism was brought forward 25 years ago, several readers pointed out that the see-saw formula appeared in a somewhat different context in the earlier "mass by mixing" papers: 1) "VECTOR - LIKE WEAK CURRENTS AND NEW ELEMENTARY FERMIONS", H. Fritzsch, Murray Gell-Mann, P. Minkowski, CALT-68-517, Phys.Lett.B59:256,1975; 2) "VECTOR - LIKE WEAK CURRENTS, MASSIVE NEUTRINOS, AND NEUTRINO BEAM OSCILLATIONS", H. Fritzsch, P. Minkowski, CALT-68-525, Phys.Lett.B62:72, 1976; 3) "MU ---> E GAMMA AT A RATE OF ONE OUT OF 1-BILLION MUON DECAYS?" P. Minkowski, Print-77-0182(BERN), Phys.Lett.B67:421,1977. *** APS neutrino study posted on Archive The final study, and most working group reports are now available through the ArXiv, (which I still call xxx). physics/0411216, hep-ph/0412099, hep-ex/0412016, astro-ph/0412544, hep-ph/0412300 *** Notable New References (- web page at bottom for links) <-> Okamura, "Effect of the smaller mass-squared difference for the long-baseline neutrino experiments", hep-ph/0411388 <-> Donini et al., "Appearance and disappearance signals at a beta-beam and a super-beam facility", hep-ph/0411402 & 411403 <-> E. Akhmedov, "Three-flavour effects and CP- and T-violation in neutrino oscillations", hep-ph/0412029 <-> Ferrandis & Pakvasa, "QLC condition and neutrino mass hierarchy", hep-ph/0412038 <-> Kopeikin et al, "Antinu Background from spent fuel storage in sensitive searches for theta_13 at reactors", hep-ph/0412044 <-> Elgaroy & Lahav, "Nu Masses from (Cosmology)" hep-ph/0412075 <-> S. Kopp, "The NuMI Neutrino Beam at Fermilab" hep-ex/0412052 <-> Ch. Kraus et al., "Final Results from phase II of the Mainz Neutrino Mass Search in Tritium beta Decay", hep-ex/0412056. Riddle - Can you improve signal to background by a factor of 10 if there is no signal? m^2 = -0.6 +- 2.2 +- 2.1 eV^2. <-> O. Yasuda, "Degeneracy and strategies of long-baseline and reactor experiments", hep-ph/0412405 <-> Bahcall & Serenelli, "How do Uncertainties in the Surface Chemical Abundances of th Sun Affect the Predicted Solar Neutrino Fluxes". astro-ph/0412096. They dominate theoretical errors. <-> U. Sarkar, "Minimal supersymmetric SO(10) GUT with doublet Higgs", hep-ph/0409019 <-> C. Albright, "Normal vs. Inverted Hierarchy in Type I Seesaw Models", hep-ph/0407155 ****************************************************************** http://www.hep.anl.gov/ndk/longbnews/ maury.goodman@anl.gov
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