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 Xe129 and Xe131 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.
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. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 111:(2013), pp. 021301-021306. [10.1103/PhysRevLett.111.021301]
Limits on Spin-Dependent WIMP-Nucleon Cross Sections from 225 Live Days of XENON100 Data
GARBINI, MARCO;SARTORELLI, GABRIELLA;
2013
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 Xe129 and Xe131 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
