From bfleming@phys.columbia.edu Wed Mar 7 16:11:17 2001 Date: Wed, 7 Mar 2001 14:26:05 -0500 (EST) From: "Bonnie T. Fleming" To: johna@anl.gov, hal@anl.gov, holt@anl.gov, geesaman@anl.gov, olness@pascal.physics.smu.edu, gallag@hep.umn.edu, ukyang@hecate.fnal.gov, rex@iucf.indiana.edu, jorge@fnal.gov, reimer@anl.gov Subject: Minutes of first meeting for non-oscillation physics group for the Brighter Booster Study Hello All, We had our first meeting of the non-oscillation physics working group for the brighter booster project this morning. Following are the minutes of the meeting: The next meeting will be held two weeks from today at the same time: Wednesday March 21st, 9am Central time. If this is NOT a good time for you, please email me and I will reschedule. In attendance: Jorge Morfin, Paul Reimer, Rex Tayloe, Fred Olness, Bonnie Fleming The meeting began with discussion of goals of the group. A brighter Booster would provide a high intensity neutrino beam allowing for lots of new and interesting physics. Specifically, the present NUMI beam has an energy range of 2-40GeV and an intensity to produce 3,000 events/kg/year on the MINOS near detector. A brighter booster would upgrade this intensity to 10,000 events/kg/year. The brighter booster will also increase the intensity of the Booster Neutrino beam designed for the MiniBooNE experiment. This groups goals are to explore and outline non-oscillation physics topics available with this beam. As a first pass, we discussed some different physics topics we can address. With this increased intensity, experiments using lighter targets are achievable. Jorge is very interested in what this can tell us about nuclear effects for neutrinos. This energy and intensity will make high x physics possible as well as the region where resonance production meets deep inelastic scattering. Rex listed some physics topics for a lower energy beam --- 500 MeV-1 GeV. These include neutrino-nucleon elastic scattering to determine deltaS, the strange spin of the proton, neutral current production of pi_0's and measurements of magnetic moment of the neutrino. Fred agreed that high precision measurements of structure functions on a pure proton target will allow more understanding of nuclear effects which is very interesting. His thoughts are as follows: Structure Functions: Stage 1: Obtain high statistics data on low mass targets so that uncertainties due to nuclear corrections are eliminated. As PDF's analysis improves and we try to quantify the true uncertainty, such nuclear corrections are difficult to properly incorporate into the uncertainty analysis. High precision structure functions here will represent a significant advance for flavor differentiation. Stage 2: Having extracted precision proton structure functions, we can then go back and look at the nuclear effects SEPARATELY as a function of A. This facility will allow us to disentangle the proton structure from the nuclear structure with unmatched precision. Higher Twist: High statistics data out to x->1 with a reasonable range in Q will give us the chance to turn the higher twist contributions "on and off" at will and test the various theoretical models in this region. Issues to think about: Resonance production; x>1 region. Paul is also interested in structure functions on a hydrogen target as well as polarization physics in this energy and intensity range. Our long range plan is to research these and other non-oscillation physics topics available with this beam as well as specifics of detectors needed to do this physics. Research should culminate in a report available by the conclusion of Snowmass 2001, in mid-July. We should have a draft of this report available before snowmass, by early to mid June, to make the working group's efforts at Snowmass most productive. Whomever is not attending Snowmass can work with the group via video or teleconference during this time. Of the group in attendance, Jorge, Bonnie and Fred are planning to attend Snowmass, Paul will probably not attend, and Rex is undecided. Jorge is just completing a document outlining physics of interest to the nuclear community available with beam from a brighter booster. This can serve as a starting point for our group's work. He will send this out to the group this weekend. There are other reports that will be useful for our group including parts of the muon-collider study project and the whitepaper from JLAB. Fred has put togehter a webpage for our group which includes links to these documents, group members names and email etc. You can find webpage at: http://www.physics.smu.edu/~olness/booster/ Thanks Fred! Our short term plan is to spend the next two weeks thinking about these and other topics of interest and to reconvene in two weeks to make more specific assignments for study. Proposed was to hold the next meeting exactly two weeks from today at the same time. This would be March 21st, at 9am Central time. Please email me if this does NOT work for your schedule and I will try to reorganize another time. Looks like we have lots of exciting work coming up! Bonnie.