Abstract
We describe the physics capabilities and status of the MIPP experiment which concluded its physics data taking run in March 2006. We show some preliminary results from this run and describe plans to upgrade the spectrometer.
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The main MIPP web page is at http://ppd.fnal.gov/experiments/e907/. The MIPP collaboration list may be found using links here
The MIPP proposal and Addendum to the proposal may be found at http://ppd.fnal.gov/experiments/e907/Proposal/E907_Proposal.html
The time-of-flight detector was fabricated by MIPP and consists of an array of 10 cm × 10 cm scintillators and 5 cm × 5 cm scintillators. See http://ppd.fnal.gov/experiments/e907/TOF/TOF.html for a detailed description of the detector
The multi-cell Čerenkov detector was initially built for Brookhaven Experiment E766 and later in Fermilab experiment E690 and then used in several other Brookhaven experiments. In MIPP, we fill the detector with the gas C4F10 which has the appropriate refractive index at atmospheric pressure
The details of the SELEX RICH construction and performance may be found at J Engelfried et al, Nucl. Instrum. Methods A43, 53 (1999). We have replaced the front end electronics, and done extensive work on the safety systems. MIPP uses CO2 gas as the radiator for the RICH
The TPC was built by the BEVALAC group at Berkeley in the 1990s and used effectively at several Brookhaven experiments (e.g. E910) and then donated to Fermilab by LBNL for use in MIPP. See, G Rai et al, IEEE Trans. Nucl. Sci. 37, 56 (1990); LBL-28141
R Raja, Phys. Rev. D18, 204 (1978); D16, 142 (1977)
R Raja and Y Fisyak, Proceedings of the DPF92 meeting, Fermilab
NUMI stands for Neutrinos at the Main Injector and refers to the Fermilab Main Injector neutrino beam. MINOS is the first experiment to utilize this beam. MINOS proposal may be found at ‘P-875: A long baseline neutrino oscillation experiment at Fermilab’, E Ables et al, FERMILAB-PROPOSAL-P875 (1995). See also their website at http://www-numi.fnal.gov/
The Minerva website is at http://www.pas.rochester.edu/ksmcf/minerva/
The Nova experiment is currently still a proposal and the website is at http://www-nova.fnal.gov/
C Johnstone et al, Beamline design for particle production experiment, E907 at FNAL, Proceedings of the PAC03 Conference
For more details on the beam Čerenkov system, see http://ppd.fnal.gov/experiments/e907/Beam/BeamCerenkov/BeamCerenkov.html
During the engineering run in 2004, we lost 20% of the phototubes in the RICH due to a fire in one of the phototube bases. This does not impact adversely on our pattern recognition, since the Čerenkov angle is large and there is plenty of light over most of our momentum range
The electromagnetic calorimeter was fabricated by MIPP and uses lead as the radiator and an array of proportional tubes with 2.54 cm wire spacing as the readout. It has 10 radiation lengths and has 10 longitudinal segments
The hadron calorimeter is recycled from the HyperCP collaboration and uses scintillator fibers embedded in iron as readout. It has 9.7 interaction lengths and has four longitudinal segmentations each of which is segmented in two transversely
We have reused beam and drift chambers from the E690 Collaboration. D C Christian et al, Nucl. Instrum. Methods A345, 62 (1994)
The large proportional chambers straddling the RICH find their use again after having been used by numerous previous experiments. M De Palma et al, Nucl. Instrum. Methods 216, 393 (1983)
A Malensek, Fermilab Technical Memo FN-341, 1981 (unpublished)
The TPC DAQ upgrade scheme may be found at http://ppd.fnal.gov/experiments/e907/ notes/MIPPnotes/public/pdf/MIPP0068/MIPP0068.pdf
The scheme to produced tagged neutron, anti-neutron and K 0 L beams is detailed in http://ppd.fnal.gov/experiments/e907/ notes/MIPPnotes/public/pdf/MIPP0130/MIPP0130.pdf
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Raja, R. The main injector particle production experiment at Fermilab. Pramana - J Phys 67, 951–960 (2006). https://doi.org/10.1007/s12043-006-0105-y
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DOI: https://doi.org/10.1007/s12043-006-0105-y