R. Kutschke

The Mu2e Experiment at Fermilab

The Mu2e collaboration has proposed an experiment to search for the coherent decay of a muon to an electron in the Coulomb field of a nucleus with an expected sensitivity of Rμe<6.0×10−17, at the 90% confidence level. Mu2e has received strong support from the P5 panel and has received Stage I approval from Fermilab. If all resources are made available as required, the experiment could begin taking data as early as 2016.

Beam test results of the BTeV silicon pixel detector

Abstract The results of the BTeV silicon pixel detector beam test carried out at Fermilab in 1999–2000 are reported. The pixel detector spatial resolution has been studied as a function of track inclination, sensor bias, and readout threshold.

Performance of prototype BTeV silicon pixel detectors in a high-energy pion beam

Abstract The silicon pixel vertex detector is a key element of the BTeV spectrometer. Sensors bump bonded to prototype front-end devices were tested in a high-energy pion beam at Fermilab. The spatial resolution and occupancies as a function of the pion incident angle were measured for various sensor-readout combinations. The data are compared with predictions from our Monte Carlo simulation and very good agreement is found.

BTEV: Status, overview and prospects

The BTeV Collaboration is designing a detector to perform a broad program of studies in flavor physics in the beauty and charm systems: CP violation, flavor mixing and searches for rare and forbidden decays. The program will be sensitive to many signatures for physics beyond the Standard Model. The BTeV detector will be located at the CZero interaction region of the Tevatron p-p collider at Fermilab. This report will present the status of the program, review the detector design with emphasis on new developments, survey the projected physics reach, and conclude with expectations for the future.

BTeV: Lepton, hadron and photon identification

Abstract The BTeV detector contains three particle ID devices: a RICH detector, an Electromagnetic Calorimeter and a Muon Detector. These are used to distinguish among the five types of charged tracks ( e , μ , π , K , p ), to reconstruct single photons, and to reconstruct mesons such as π 0 and η (′) which decay into photons. This article will outline the design of these devices, with particular attention to recent developments, and will present some benchmark numbers for the expected performance of these devices.

Beam test of BTeV pixel detectors

Abstract The silicon pixel vertex detector is one of the key elements of the BTeV spectrometer. Detector prototypes were tested in a beam at Fermilab. We report here on the measured spatial resolution as a function of the incident angles for different sensor-readout electronics combinations. We compare the results with predictions from our Monte Carlo simulation.

art: A Framework for New, Small Experiments at Fermilab

Fermilab is preparing to mount a variety of new experiments at the Intensity Frontier, all of which require infrastructure software including a framework, an event data model, persistency, run-time configuration, management of singleton-like entities such as the geometry and conditions data, integration with Geant4 (G4), build and release management, and integration with GRID based work-flow management systems. In order to maximize the return on both past and future effort invested in supporting CMS, the Fermilab Computing Division (CD) has extracted the core of the CMS framework plus many parts of its associated infrastructure software; CD is supporting this infrastructure for use by the new Intensity Frontier experiments. This talk will present the plans for and status of this infrastructure software including points of view from both the developers and the physicist-clients working on the Mu2e experiment.

Search forCPViolation in the decaysD+→KSπ+andD+→KSK+

A high statistics sample of photo-produced charm from the FOCUS(E831) experiment at Fermilab has been used to search for direct CP violation in the decays D+->K_S pi+ and D+ ->K_S K+. We have measured the following asymmetry parameters relative to D+->K-pi+pi+: A_CP(K_S pi+) = (-1.6 +/- 1.5 +/- 0.9)%, A_CP(K_S K+) = (+6.9 +/- 6.0 +/- 1.5)% and A_CP(K_S K+) = (+7.1 +/- 6.1 +/- 1.2)% relative to D+->K_S pi+. The first errors quoted are statistical and the second are systematic. We also measure the relative branching ratios: \Gamma(D+->\bar{K0}pi+)/\Gamma(D+->K-pi+pi+) = (30.60 +/- 0.46 +/- 0.32)%, \Gamma(D+->\bar{K0}K+)/\Gamma(D+->K-pi+pi+) = (6.04 +/- 0.35 +/- 0.30)% and \Gamma(D+->\bar{K0}K+)/\Gamma(D+->\bar{K0}pi+) = (19.96 +/- 1.19 +/- 0.96)%.

Search for CP Violation in the decays [Formula presented] and [Formula presented]

A high statistics sample of photo-produced charm from the FOCUS(E831) experiment at Fermilab has been used to search for direct CP violation in the decays D+->K_S pi+ and D+ ->K_S K+. We have measured the following asymmetry parameters relative to D+->K-pi+pi+: A_CP(K_S pi+) = (-1.6 +/- 1.5 +/- 0.9)%, A_CP(K_S K+) = (+6.9 +/- 6.0 +/- 1.5)% and A_CP(K_S K+) = (+7.1 +/- 6.1 +/- 1.2)% relative to D+->K_S pi+. The first errors quoted are statistical and the second are systematic. We also measure the relative branching ratios: \Gamma(D+->\bar{K0}pi+)/\Gamma(D+->K-pi+pi+) = (30.60 +/- 0.46 +/- 0.32)%, \Gamma(D+->\bar{K0}K+)/\Gamma(D+->K-pi+pi+) = (6.04 +/- 0.35 +/- 0.30)% and \Gamma(D+->\bar{K0}K+)/\Gamma(D+->\bar{K0}pi+) = (19.96 +/- 1.19 +/- 0.96)%.