The LowEnergy Neutrino Facory低能量中微子工厂.pptVIP

Alan Bross MCTF Friday Meeting October 30, 2009 Alan Bross MCTF Friday Meeting October 30, 2009 IDS-NF Update Report on the Mumbai Plenary Meeting Alan Bross MCTF Friday Meeting October 30, 2009 Principal Outcomes Proposed Changes to the Baseline Low-Energy Neutrino Factory If θ13 has been measured at the time the Reference Design Report (RDR) is in preparation (latter half of 2012), then the Low Energy Neutrino Factory will be the Neutrino Factory option that will be presented in the RDR Foglie et al.: sin22q13 = 0.02 ± 0.01 If θ13 has not been measured, i.e. measurements have only yielded an improved upper limit, then the present baseline Neutrino Factory (25?GeV stored muon energy serving detectors at 3000—5000?km and 7000—8000?km) will be presented in the RDR. * Alan Bross MCTF Friday Meeting October 30, 2009 sin22q13 0.01 * Alan Bross MCTF Friday Meeting October 30, 2009 Reminder: LENF q13 Reach * Alan Bross MCTF Friday Meeting October 30, 2009 A Caveat The LENF is more sensitive to a short fall in statistics that 25 GeV with magic BL where the reach falls off smoothly with statistics * Alan Bross MCTF Friday Meeting October 30, 2009 LENF Detector Baseline – 20kT (fiducial) TASD Main RD issue is Magnetic Volume Possible Detector Options SuperMind Mind with 1 cm Fe plates Need MC simulation to determine n event E threshold LAr Cost Will depend on how the technology develops * Alan Bross MCTF Friday Meeting October 30, 2009 Staging The physics section will also discuss the possible staging scenario’s Starting with LENF 4.5 GeV, single detector @ 1300km Alternate single baseline (3000 km? in order to be above t threshold. Upgrading to 25 GeV facility * Alan Bross MCTF Friday Meeting October 30, 2009 LENF Near-Term To Do List These tasks will fall heavily on Fermilab effort Need full description of Accelerator facility FERMILAB-PUB-09-001-APC can be used