Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Z. Ahmed; D. S. Akerib; E. Armengaud; S. Arrenberg; C. Augier; C. N. Bailey; D. Balakishiyeva; L. Baudis; D. A. Bauer; A. Benoît; L. Bergé; J. Blümer; P. L. Brink; A. Broniatowski; T. Bruch; V. Brudanin; R. Bunker; B. Cabrera; D. O. Caldwell; B. Censier; M. Chapellier; G. Chardin; F. Charlieux; J. Cooley; P. Coulter; G. A. Cox; P. Cushman; M. Daal; X. Defay; M. De Jesus; F. Dejongh; P. C.F. Di Stefano; Y. Dolgorouki; J. Domange; L. Dumoulin; M. R. Dragowsky; K. Eitel; S. Fallows; E. Figueroa-Feliciano; J. Filippini; D. Filosofov; N. Fourches; J. Fox; M. Fritts; J. Gascon; G. Gerbier; J. Gironnet; S. R. Golwala; M. Gros; J. Hall

doi:10.1103/PhysRevD.84.011102

Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Z. Ahmed, D. S. Akerib, E. Armengaud, S. Arrenberg, C. Augier, C. N. Bailey, D. Balakishiyeva, L. Baudis, D. A. Bauer, A. Benoît, L. Bergé, J. Blümer, P. L. Brink, A. Broniatowski, T. Bruch, V. Brudanin, R. Bunker, B. Cabrera, D. O. Caldwell, B. CensierM. Chapellier, G. Chardin, F. Charlieux, J. Cooley, P. Coulter, G. A. Cox, P. Cushman, M. Daal, X. Defay, M. De Jesus, F. Dejongh, P. C.F. Di Stefano, Y. Dolgorouki, J. Domange, L. Dumoulin, M. R. Dragowsky, K. Eitel, S. Fallows, E. Figueroa-Feliciano, J. Filippini, D. Filosofov, N. Fourches, J. Fox, M. Fritts, J. Gascon, G. Gerbier, J. Gironnet, S. R. Golwala, M. Gros, J. Hall

Physics and Astronomy (Twin Cities)

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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 614kg•days 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 weakly interacting, massive particle (WIMP)-nucleon cross section. For a WIMP mass of 90GeV/c2, where this analysis is most sensitive, a cross section of 3.3×10^-44cm2 is excluded at 90% C.L. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700GeV/c2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others.

Original language	English (US)
Article number	011102
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	84
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.84.011102
State	Published - 2011

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10.1103/PhysRevD.84.011102

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Ahmed, Z., Akerib, D. S., Armengaud, E., Arrenberg, S., Augier, C., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Benoît, A., Bergé, L., Blümer, J., Brink, P. L., Broniatowski, A., Bruch, T., Brudanin, V., Bunker, R., Cabrera, B., Caldwell, D. O., ... Hall, J. (2011). Combined limits on WIMPs from the CDMS and EDELWEISS experiments. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84(1), Article 011102. https://doi.org/10.1103/PhysRevD.84.011102

Ahmed, Z, Akerib, DS, Armengaud, E, Arrenberg, S, Augier, C, Bailey, CN, Balakishiyeva, D, Baudis, L, Bauer, DA, Benoît, A, Bergé, L, Blümer, J, Brink, PL, Broniatowski, A, Bruch, T, Brudanin, V, Bunker, R, Cabrera, B, Caldwell, DO, Censier, B, Chapellier, M, Chardin, G, Charlieux, F, Cooley, J, Coulter, P, Cox, GA, Cushman, P, Daal, M, Defay, X, De Jesus, M, Dejongh, F, Di Stefano, PCF, Dolgorouki, Y, Domange, J, Dumoulin, L, Dragowsky, MR, Eitel, K, Fallows, S, Figueroa-Feliciano, E, Filippini, J, Filosofov, D, Fourches, N, Fox, J, Fritts, M, Gascon, J, Gerbier, G, Gironnet, J, Golwala, SR, Gros, M & Hall, J 2011, 'Combined limits on WIMPs from the CDMS and EDELWEISS experiments', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 84, no. 1, 011102. https://doi.org/10.1103/PhysRevD.84.011102

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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 614kg•days 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 weakly interacting, massive particle (WIMP)-nucleon cross section. For a WIMP mass of 90GeV/c2, where this analysis is most sensitive, a cross section of 3.3×10-44cm2 is excluded at 90% C.L. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700GeV/c2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others.",

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AU - Ahmed, Z.

AU - Akerib, D. S.

AU - Armengaud, E.

AU - Arrenberg, S.

AU - Augier, C.

AU - Bailey, C. N.

AU - Balakishiyeva, D.

AU - Baudis, L.

AU - Bauer, D. A.

AU - Benoît, A.

AU - Bergé, L.

AU - Blümer, J.

AU - Brink, P. L.

AU - Broniatowski, A.

AU - Bruch, T.

AU - Brudanin, V.

AU - Bunker, R.

AU - Cabrera, B.

AU - Caldwell, D. O.

AU - Censier, B.

AU - Chapellier, M.

AU - Chardin, G.

AU - Charlieux, F.

AU - Cooley, J.

AU - Coulter, P.

AU - Cox, G. A.

AU - Cushman, P.

AU - Daal, M.

AU - Defay, X.

AU - De Jesus, M.

AU - Dejongh, F.

AU - Di Stefano, P. C.F.

AU - Dolgorouki, Y.

AU - Domange, J.

AU - Dumoulin, L.

AU - Dragowsky, M. R.

AU - Eitel, K.

AU - Fallows, S.

AU - Figueroa-Feliciano, E.

AU - Filippini, J.

AU - Filosofov, D.

AU - Fourches, N.

AU - Fox, J.

AU - Fritts, M.

AU - Gascon, J.

AU - Gerbier, G.

AU - Gironnet, J.

AU - Golwala, S. R.

AU - Gros, M.

AU - Hall, J.

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ER -

Combined limits on WIMPs from the CDMS and EDELWEISS experiments

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