Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data

E Aprile; M Alfonsi; K Arisaka; F Arneodo; C Balan; L Baudis; B Bauermeister; A Behrens; P Beltrame; K Bokeloh; A Brown; E Brown; G Bruno; R Budnik; J M R Cardoso; W-T Chen; B Choi; A P Colijn; H Contreras; J P Cussonneau; M P Decowski; E Duchovni; S Fattori; A D Ferella; W Fulgione; F Gao; M Garbini; C Ghag; K-L Giboni; L W Goetzke; C Grignon; E Gross; W Hampel; F Kaether; A Kish; J Lamblin; H Landsman; R F Lang; M Le Calloch; D Lellouch; C Levy; K E Lim; Q Lin; S Lindemann; M Lindner; J A M Lopes; K Lung; T Marrodán Undagoitia; F V Massoli; A J Melgarejo Fernandez; Y Meng; M Messina; A Molinario; K Ni; U Oberlack; S E A Orrigo; E Pantic; R Persiani; G Plante; N Priel; A Rizzo; S Rosendahl; J M F dos Santos; G Sartorelli; J Schreiner; M Schumann; L Scotto Lavina; P R Scovell; M Selvi; P Shagin; H Simgen; A Teymourian; D Thers; O Vitells; H Wang; M Weber; C Weinheimer; XENON100 Collaboration

doi:10.1103/PhysRevLett.111.021301

Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data

Phys Rev Lett. 2013 Jul 12;111(2):021301. doi: 10.1103/PhysRevLett.111.021301. Epub 2013 Jul 9.

Authors

E Aprile¹, M Alfonsi, K Arisaka, F Arneodo, C Balan, L Baudis, B Bauermeister, A Behrens, P Beltrame, K Bokeloh, A Brown, E Brown, G Bruno, R Budnik, J M R Cardoso, W-T Chen, B Choi, A P Colijn, H Contreras, J P Cussonneau, M P Decowski, E Duchovni, S Fattori, A D Ferella, W Fulgione, F Gao, M Garbini, C Ghag, K-L Giboni, L W Goetzke, C Grignon, E Gross, W Hampel, F Kaether, A Kish, J Lamblin, H Landsman, R F Lang, M Le Calloch, D Lellouch, C Levy, K E Lim, Q Lin, S Lindemann, M Lindner, J A M Lopes, K Lung, T Marrodán Undagoitia, F V Massoli, A J Melgarejo Fernandez, Y Meng, M Messina, A Molinario, K Ni, U Oberlack, S E A Orrigo, E Pantic, R Persiani, G Plante, N Priel, A Rizzo, S Rosendahl, J M F dos Santos, G Sartorelli, J Schreiner, M Schumann, L Scotto Lavina, P R Scovell, M Selvi, P Shagin, H Simgen, A Teymourian, D Thers, O Vitells, H Wang, M Weber, C Weinheimer; XENON100 Collaboration

Affiliation

¹ Physics Department, Columbia University, New York, New York 10027, USA.

PMID: 23889382
DOI: 10.1103/PhysRevLett.111.021301

Abstract

We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days×34 kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with 129Xe and 131Xe nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6 GeV/c², with a minimum cross section of 3.5×10(-40) cm² at a WIMP mass of 45 GeV/c², at 90% confidence level.