1 / 19

Milorad Popovic MAP Meeting May, 2015

Explore potential advancements in muon beam storage technology to enhance neutrino cross-section measurements with precision, utilizing existing infrastructure and minimizing costs.

terica
Download Presentation

Milorad Popovic MAP Meeting May, 2015

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Opportunities for Experiments Based on Stored Muon Beams at Fermilab(in next ~5-10 years, for ~3-20M$) Milorad Popovic MAP Meeting May, 2015

  2. Motivation 2 Measure neutrino cross-section with better than 10% precision Take advantage of the existing accelerator complex configuration providing beam to the New Muon g-2 Experiment Utilize existing detectors (MicroBooNE, ICARUS) Minimize initial investment. Providing a suitable building to house the detector would be the only investment required Describe possible improvements in collecting and storing muons that would allow cross-section measurements with a precision of a few percent with a modest additional investment. Provide a suitable test facility for future NF December 5, 2014

  3. Muon Campus = Mu2e + g-2 + ??? p/m g-2 Mu2e n 3

  4. Proton Beam Like for g-2,but with g-2 off • 5x1012 protons in a Booster pulse • 3 Hz, 8 GeV Booster • Muons are stored for ~100 turns • Running time 107 Sec (1 year) • 100 ton detector, 10 meters downstream from ring ~ 400 CC neutrino events This is for about the cost of moving an existing detector (mBooNE??, 60T) and building a new detector housing (about 3M$) 4 December 5, 2014

  5. Looking in the near future ( cost~$3M) • 1x1013 protons from MI (two Booster pulses slip stacked) • 1 Hz, 120 GeV MI • Muons are stored for ~100 turns • Running time 1year(2x107 Sec) • 100 ton detector, 10 meters downstream from ring ~ 2/3*120/8*2x400 8000 CC neutrino events So in 10 bins even if detector is only 50% efficient, cross section Can be measured with error less then 10% 5 December 5, 2014

  6. Looking Into the Future ( cost~$10M) • 1x1013 protons from MI (two Booster pulses, slip stacked) • 1 Hz, 120 GeV MI • Running time 1year(2x107 Sec) Fermilab year is ~2x107 Sec • Larger detector, ~500 ton detector( x5) ICARUS is 600 ton ~40000 CC neutrino events 6 December 5, 2014

  7. Looking Into the Future ( cost~$??) • 1x1013 protons from MI (two Booster pulses, slip stacked) • 1 Hz, 120 GeV MI • New Li lens r = 2 cm to increase collection of pi’s ( x1.5) CERN has made this size Lens • Make ring to be racetrack (x1.5x2) Provide a suitable test facility for future NF • Running time 1year(2x107 Sec) Fermilab year is ~2107 Sec • Larger detector, ~500 ton detector( x5) ICARUS is 600 ton ~100k CC neutrino events 7 December 5, 2014

  8. nuSTORM 8 December 5, 2014

  9. Questions ? The End 9 December 5, 2014

  10. How to get 100k events • In next year or two there will be stored muon beam at ~3 GeV/c in the storage ring with ~60 meters long straits (Debuncher ring as g-2 delay beam line). • There will be ~400 CC neutrino events in some imaginary 100 ton detector, 10 meters downstream from the one ring’s straits, running for 10^7 sec Booster at 3 Hz, 8 GeV beam(5x10^12 protons per pulse) and storing muons for 100 turns. • Numbers in point 2., are g-2 beam , and are just to establish reference point. • Running (two Booster batches stacked) 120 GeV beam from MI on the same target and using ICARAUS (600 ton) detector for 2x10^7 seconds (Fermilab year) will create 40000 CC neutrino events. • All this is for investment of ~10M$ in building to house detector and willingness to move ICARUS detector in suggested location! 10 December 5, 2014

  11. Questions ? 11 December 5, 2014

  12. Questions ? 12 December 5, 2014

  13. Questions ? 13 December 5, 2014

  14. SBN Program 14 August 15, 2014

  15. The Context 15 We revisit the idea of using the Debuncher as a storage ring for muons the g-2 Experiment expects 6x10-6 stored muons per 8 GeV proton on target December 5, 2014

  16. g-2 Experiment 16 Booster pulse(5x1012 Protons@ 8 GeV) is separated in 4 bunches (~100 ns long) in the Recycler The Booster is a 15 Hz machine (not all cycles are used) Target Station is AP0 (Antiproton production target station) and was run with beam power up to 72 kW ( 120 GeV beam from Main Injector) 3.1 GeV/c Pions/Muons are collected using Lithium Lens ( this lens was used for collection of 8.9 GeV/c Antiprotons with ~0.5 Hz) Debuncher is used as delay line for muons (beam is stored for 3 turns). Muons go to g-2 storage ring for experiment. December 5, 2014

  17. Concept: g-2 Experiment 6x10-6 stored muons in the Debuncher per 8 GeV proton on target 17

  18. G4BeamLine simulations of g-2 p after Li lens p after one turn Debuncher p at end of transfer line 18 December 5, 2014 • In simulation 1.4x1010 protons on AP0 target

  19. g-2 simulations 6x10-6 stored muons in the Debuncher per one 8 GeV proton on target m after Li lens m after one turn in Debuncher m at the end of transfer line 19 December 5, 2014

More Related