Sep 8 – 13, 2013
Asilomar, California
US/Pacific timezone

The unbearable lightness of being: CDMS versus XENON

Sep 10, 2013, 4:00 PM
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Oral Dark Matter Dark Matter IV


Mr Felix Kahlhoefer (University of Oxford)


The CDMS-II collaboration has reported 3 events in a Si detector, which are consistent with being nuclear recoils due to scattering of Galactic dark matter particles with a mass of about 8.6 GeV and a cross-section on neutrons of about 2 x 10^-41 cm^2. In my presentation I will discuss the tension between this result and upper bounds from the XENON10 and XENON100 experiments and under what conditions this tension can be ameliorated or resolved. A particular focus will be on experimental uncertainties (for example concerning the ionisation yield Q_y) and uncertainties related to the dark matter velocity distribution. Finally, I will discuss various particle physics modifications of the interactions between DM and SM quarks which can bring XENON10/100 and CDMS-II into better agreement.

Primary author

Mr Felix Kahlhoefer (University of Oxford)


Dr Christopher McCabe (IPPP Durham) Dr Kai Schmidt-Hoberg (CERN) Dr Mads Toudal Frandsen (CP3-Origins) Prof. Subir Sarkar (University of Oxford)

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