Neutrino Factory Physics Study Meeting Minutes Tuesday, 28 September, 1999 Local: Fritz DeJongh, Mike Shaevitz, Peter Lucas, Frank Nezrick, Zoltan Ligeti, Martin Schmaltz, Peter Shanahan, Ray Stefanski, Eric Hawker, Pangiotis Spentzouris, Jae Yu, Rob Plunkett, Robert Bernstein, Debbie Harris, Mayda Uilesco, Gokhan Unel, Jorge Morfin, Stephen Parke, Carl Albright, Chris Quigg, Heidi Schellman, Steve Geer BNL: Milind Diwan, Juan Gallardo, Harold Kirk, Rick Fernow LBNL: Lina Galtieri, Ronald Madaras, Mark Strovink, Bob Cahn, Jonathan Wurtele Minnesota: Priscilla Cushman Princeton: Kirk McDonald, Eric Prebys Rochester: Kevin McFarland, Arie Bodek Stonybrook: Robert Shrock, Irina Mocioiu, Jim Hill 1. Introduction 1.1 Letter from Mike Shaevitz The Fermilab directorate would like a study of the physics capability of a muon storage ring neutrino source (physics factory). The letter is on the web (see web link below) ... and was sent to a local nucleus of people to get the study started. This group met and decided to broaden the study group to include participation from the wider community of nu-factory/muon collider collaboration members, neutrino experimentalists, and theorists. We would like to include in the study group whoever would like to participate. All of the present participants are invited to make others who might be interested aware of the study and encourage them to participate. 1.2 Charge The charge for the group will be to deliver a concise report by March 31, 2000 that will explicitly include: 1. The physics motivation for a neutrino source based on a muon storage ring, operating in the era beyond the current set of neutrino oscillation experiments. 2. The physics program that could be accomplished at a neutrino factory as a function of: (a) The stored muon energy, with the maximum energy taken to be 50 GeV. (b) The number of muon decays per year in the beam-forming straight section, taken to be in the range from 10^19 to 10^21 decays per year. (c) The presence or absence of muon polarization within the storage ring. (d) For oscillation experiments, the baseline length including investigations evaluating matter effects. 1.3 Email distribution list Heidi Schellman (schellman@fnal.gov) and Steve Geer (sgeer@fnal.gov) will maintain an email distribution list for the study group. It is hoped that we may have an email list set up for the next meeting. In the meantime, to make sure you are in the current list, please send email to Heidi and Steve. 1.4 Web page The web page for the study is: http://www.fnal.gov/projects/muon_collider/nu/study/study.html 1.5 Meeting times Meetings will be biweekly on Tuesdays 11:30 am - 1:15 pm, in the 12th floor room, with video links. Please let Debbie (debbie@hecate.fnal.gov) know if you want a video connection. Next meeting: Tuesday 12th October. 2. Strawman table of contents We discussed the strawman table of contents. There were some suggestions for changes. An updated version is appended below. 3. Who is interested in what ? We would like to form some initial working sub-groups. To facilitate this we would like everyone to send email to Heidi Schellman (schellman@fnal.gov) and Steve Geer (sgeer@fnal.gov) letting them know which items on the strawman table of contents (below) they are interested in contributing to. We would like this information by Friday (1st October). This information will be used to form sub-groups which Heidi and Steve would like to put on the web by Monday (4th October). The groups would then be encouraged to interact before the next meeting to meet the goals below. 4. Goals for next meeting i) Identify the sub-groups ii) Identify a contact person for each sub-group iii) Have a short talk from each sub-group presenting a proposal for the items to be covered in the associated part(s) of the final report, and an initial "work plan". ------------------------------------------------ Appendix: Updated strawman table of contents 1. Introduction 2. Neutrino factory beam characteristics 3. Oscillation experiments 3.1 Theoretical framework 3.2 Possible scenarios in 5-10 years 3.3 Strawman detectors 3.4 Precision measurements of $\theta_{23}$ and $\Delta m^2_{23}$ 3.5 $\theta_{12}$ and $\Delta m^2_{12}$ 3.6 $\theta_{13}$ and $\Delta m^2_{13}$ 3.7 Matter effects and CP Violation 3.8 Sterile neutrinos 3.9 Parameter measurements in non-standard scenarios 3.10 Summary: Polarization, Energy, and Baseline 4. Non-Oscillation Experiments 4.1 Electro-weak measurements 4.2 Structure Functions (including A dependence) 4.3 Heavy quarks and couplings 4.4 Spin Structure Functions 4.5 Exotic searches (e.g. neutrino EDM) 4.6 Summary: Polarization and Energy 5. Summary