/ Astrophysics arXiv:1105.3377


Combined Limits on WIMPs from the CDMS and EDELWEISS Experiments


Ahmed, Z. (Caltech) ; Akerib, D.S. (Case Western Reserve U.) ; Armengaud, E. (DAPNIA, Saclay) ; Arrenberg, S. (Zurich-Irchel U.) ; Augier, C. (Lyon, IPN) ; Bailey, C.N. (Case Western Reserve U.) ; Balakishiyeva, D. (Florida U.) ; Baudis, L. (Zurich-Irchel U.) ; Bauer, D.A. (Fermilab) ; Benoit, A. (LPSC, Grenoble) ; Berge, L. (CSNSM, Orsay) ; Blmer, J. (Karlsruhe, Inst. Technol.) ; Brink, P.L. (SLAC) ; Broniatowski, A. (CSNSM, Orsay) ; Bruch, T. (Zurich-Irchel U.) ; Brudanin, V. (Dubna, JINR) ; Bunker, R. (UC, Santa Barbara) ; Cabrera, B. (Stanford U., Phys. Dept.) ; Caldwell, D.O. (UC, Santa Barbara) ; Censier, B. (Lyon, IPN) ; Chapellier, M. (CSNSM, Orsay) ; Chardin, G. (CSNSM, Orsay) ; Charlieux, F. (Lyon, IPN) ; Cooley, J. (Southern Methodist U.) ; Coulter, P. (Oxford U.) ; Cox, G.A. (Karlsruhe U., EKP) ; Cushman, P. (Minnesota U.) ; Daal, M. (UC, Berkeley) ; Defay, X. (CSNSM, Orsay) ; De Jesus, M. (Lyon, IPN) ; DeJongh, F. (Fermilab) ; Di Stefano, P.C.F. (Queen's U., Kingston) ; Dolgorouki, Y. (CSNSM, Orsay) ; Domange, J. (DAPNIA, Saclay) ; Dumoulin, L. (CSNSM, Orsay) ; Dragowsky, M.R. (Case Western Reserve U.) ; Eitel, K. (Karlsruhe, Inst. Technol.) ; Fallows, S. (Minnesota U.) ; Figueroa-Feliciano, E. (MIT) ; Filippini, J. (Caltech) ; Filosofov, D. (Dubna, JINR) ; Fourches, N. (DAPNIA, Saclay) ; Fox, J. (Queen's U., Kingston) ; Fritts, M. (Minnesota U.) ; Gascon, J. (Lyon, IPN) ; Gerbier, G. (DAPNIA, Saclay) ; Gironnet, J. (Lyon, IPN) ; Golwala, S.R. (Caltech) ; Gros, M. (DAPNIA, Saclay) ; Hall, J. (Fermilab) ; Hennings-Yeomans, R. (Case Western Reserve U.) ; Henry, S. (Oxford U.) ; Hertel, S.A. (MIT) ; Herv\mboxe, S. (DAPNIA, Saclay) ; Holmgren, D. (Fermilab) ; Hsu, L. (Fermilab) ; Huber, M.E. (Colorado U., Denver) ; Juillard, A. (Lyon, IPN) ; Kamaev, O. (Queen's U., Kingston) ; Kiveni, M. (Syracuse U.) ; Kluck, H. (Karlsruhe, Inst. Technol.) ; Kos, M. (Syracuse U.) ; Kozlov, V. (Karlsruhe, Inst. Technol.) ; Kraus, H. (Oxford U.) ; Kudryavtsev, V.A. (Sheffield U.) ; Leman, S.W. (MIT) ; Liu, S. (Queen's U., Kingston) ; Loaiza, P. (Carleton U.) ; Mahapatra, R. (Texas A-M) ; Mandic, V. (Minnesota U.) ; Marnieros, S. (CSNSM, Orsay) ; Martinez, C. (Queen's U., Kingston) ; McCarthy, K.A. (MIT) ; Mirabolfathi, N. (UC, Berkeley) ; Moore, D. (Caltech) ; Nadeau, P. (Queen's U., Kingston) ; Navick, X-F. (DAPNIA, Saclay) ; Nelson, H. (UC, Santa Barbara) ; Nones, C. (DAPNIA, Saclay) ; Ogburn, R.W. (Stanford U., Phys. Dept.) ; Olivieri, E. (CSNSM, Orsay) ; Pari, P. (Saclay) ; Pattavina, L. (Lyon, IPN) ; Paul, B. (DAPNIA, Saclay) ; Phipps, A. (UC, Berkeley) ; Pyle, M. (Stanford U., Phys. Dept.) ; Qiu, X. (Minnesota U.) ; Rau, W. (Queen's U., Kingston) ; Reisetter, A. (St. Olaf Coll.) ; Ricci, Y. (Queen's U., Kingston) ; Robinson, M. (Sheffield U.) ; Rozov, S. (Dubna, JINR) ; Saab, T. (Florida U.) ; Sadoulet, B. (UC, Berkeley) ; Sander, J. (UC, Santa Barbara) ; Sanglard, V. (Lyon, IPN) ; Schmidt, B. (Karlsruhe U., EKP) ; Schnee, R.W. (Syracuse U.) ; Scorza, S. (Lyon, IPN) ; Seitz, D.N. (UC, Berkeley) ; Semikh, S. (Dubna, JINR) ; Serfass, B. (UC, Berkeley) ; Sundqvist, K.M. (UC, Berkeley) ; Tarka, M. (Zurich-Irchel U.) ; Torrento-Coello, A.S. (DAPNIA, Saclay) ; Vagneron, L. (Lyon, IPN) ; Verdier, M.A. (Lyon, IPN) ; Walker, R.J. (DAPNIA, Saclay) ; Wikus, P. (MIT) ; Yakushev, E. (Dubna, JINR) ; Yellin, S. (UC, Santa Barbara) ; Yoo, J. (Fermilab) ; Young, B.A. (Santa Clara U.) ; Zhang, J. (Minnesota U.)

Published in: Phys.Rev.
Year: 2011
Vol.: D84
Page No: 011102

Abstract: The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent WIMP-nucleon cross-section. For a WIMP mass of 90 GeV/c^2, where this analysis is most sensitive, a cross-section of 3.3 x 10^{-44} cm^2 is excluded at 90% CL. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700 GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others.
The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent WIMP-nucleon cross-section. For a WIMP mass of 90 GeV/c^2, where this analysis is most sensitive, a cross-section of 3.3 x 10^{-44} cm^2 is excluded at 90% CL. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700 GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others.

Web-Page: http://inspirebeta.net/record/900342/files/arXiv:1105.3377.pdf; http://inspirebeta.net/record/900342/files/figure1.png; http://inspirebeta.net/record/900342/files/figure2.png; http://inspirebeta.net/record/900342/files/figure3.png

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