Improved WIMP-search reach of the CDMS II germanium data

R. Agnese; A. J. Anderson; M. Asai; D. Balakishiyeva; D. Barker; R. Basu Thakur; D. A. Bauer; J. Billard; A. Borgland; M. A. Bowles; D. Brandt; P. L. Brink; R. Bunker; B. Cabrera; D. O. Caldwell; R. Calkins; D. G. Cerdeño; H. Chagani; Y. Chen; J. Cooley; B. Cornell; C. H. Crewdson; P. Cushman; M. Daal; P. C F Di Stefano; T. Doughty; L. Esteban; S. Fallows; E. Figueroa-Feliciano; G. L. Godfrey; S. R. Golwala; J. Hall; H. R. Harris; S. A. Hertel; T. Hofer; D. Holmgren; L. Hsu; M. E. Huber; D. Jardin; A. Jastram; O. Kamaev; B. Kara; M. H. Kelsey; A. Kennedy; M. Kiveni; K. Koch; A. Leder; B. Loer; E. Lopez Asamar; P. Lukens; R. Mahapatra; V. Mandic; K. A. McCarthy; N. Mirabolfathi; R. A. Moffatt; S. M. Oser; K. Page; W. A. Page; R. Partridge; M. Pepin; A. Phipps; K. Prasad; M. Pyle; H. Qiu; W. Rau; P. Redl; A. Reisetter; Y. Ricci; H. E. Rogers; T. Saab; B. Sadoulet; J. Sander; K. Schneck; R. W. Schnee; S. Scorza; B. Serfass; B. Shank; D. Speller; D. Toback; S. Upadhyayula; A. N. Villano; B. Welliver; J. S. Wilson; D. H. Wright; X. Yang; S. Yellin; J. J. Yen; B. A. Young; J. Zhang

doi:10.1103/PhysRevD.92.072003

Improved WIMP-search reach of the CDMS II germanium data

R. Agnese, A. J. Anderson, M. Asai, D. Balakishiyeva, D. Barker, R. Basu Thakur, D. A. Bauer, J. Billard, A. Borgland, M. A. Bowles, D. Brandt, P. L. Brink, R. Bunker, B. Cabrera, D. O. Caldwell, R. Calkins, D. G. Cerdeño, H. Chagani, Y. Chen, J. CooleyB. Cornell, C. H. Crewdson, P. Cushman, M. Daal, P. C F Di Stefano, T. Doughty, L. Esteban, S. Fallows, E. Figueroa-Feliciano, G. L. Godfrey, S. R. Golwala, J. Hall, H. R. Harris, S. A. Hertel, T. Hofer, D. Holmgren, L. Hsu, M. E. Huber, D. Jardin, A. Jastram, O. Kamaev, B. Kara, M. H. Kelsey, A. Kennedy, M. Kiveni, K. Koch, A. Leder, B. Loer, E. Lopez Asamar, P. Lukens, R. Mahapatra, V. Mandic, K. A. McCarthy, N. Mirabolfathi, R. A. Moffatt, S. M. Oser, K. Page, W. A. Page, R. Partridge, M. Pepin, A. Phipps, K. Prasad, M. Pyle, H. Qiu, W. Rau, P. Redl, A. Reisetter, Y. Ricci, H. E. Rogers, T. Saab, B. Sadoulet, J. Sander, K. Schneck, R. W. Schnee, S. Scorza, B. Serfass, B. Shank, D. Speller, D. Toback, S. Upadhyayula, A. N. Villano^*, B. Welliver, J. S. Wilson, D. H. Wright, X. Yang, S. Yellin, J. J. Yen, B. A. Young, J. Zhang

^*Corresponding author for this work

Physics and Astronomy

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Abstract

CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ∼5keV, to increase sensitivity near a WIMP mass of 8GeV/c2. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8×10-44 and 1.18×10-41 at 90% confidence for 60 and 8.6GeV/c2 WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6)GeV/c2 WIMPs.

Original language	English (US)
Article number	072003
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.92.072003
State	Published - Oct 12 2015

Funding

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.92.072003

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Agnese, R., Anderson, A. J., Asai, M., Balakishiyeva, D., Barker, D., Basu Thakur, R., Bauer, D. A., Billard, J., Borgland, A., Bowles, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Calkins, R., Cerdeño, D. G., Chagani, H., Chen, Y., ... Zhang, J. (2015). Improved WIMP-search reach of the CDMS II germanium data. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(7), Article 072003. https://doi.org/10.1103/PhysRevD.92.072003

@article{9adae8f836a342a1b8ff6bb566ebb1e5,

title = "Improved WIMP-search reach of the CDMS II germanium data",

abstract = "CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ∼5keV, to increase sensitivity near a WIMP mass of 8GeV/c2. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8×10-44 and 1.18×10-41 at 90% confidence for 60 and 8.6GeV/c2 WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6)GeV/c2 WIMPs.",

author = "R. Agnese and Anderson, {A. J.} and M. Asai and D. Balakishiyeva and D. Barker and {Basu Thakur}, R. and Bauer, {D. A.} and J. Billard and A. Borgland and Bowles, {M. A.} and D. Brandt and Brink, {P. L.} and R. Bunker and B. Cabrera and Caldwell, {D. O.} and R. Calkins and Cerde{\~n}o, {D. G.} and H. Chagani and Y. Chen and J. Cooley and B. Cornell and Crewdson, {C. H.} and P. Cushman and M. Daal and {Di Stefano}, {P. C F} and T. Doughty and L. Esteban and S. Fallows and E. Figueroa-Feliciano and Godfrey, {G. L.} and Golwala, {S. R.} and J. Hall and Harris, {H. R.} and Hertel, {S. A.} and T. Hofer and D. Holmgren and L. Hsu and Huber, {M. E.} and D. Jardin and A. Jastram and O. Kamaev and B. Kara and Kelsey, {M. H.} and A. Kennedy and M. Kiveni and K. Koch and A. Leder and B. Loer and {Lopez Asamar}, E. and P. Lukens and R. Mahapatra and V. Mandic and McCarthy, {K. A.} and N. Mirabolfathi and Moffatt, {R. A.} and Oser, {S. M.} and K. Page and Page, {W. A.} and R. Partridge and M. Pepin and A. Phipps and K. Prasad and M. Pyle and H. Qiu and W. Rau and P. Redl and A. Reisetter and Y. Ricci and Rogers, {H. E.} and T. Saab and B. Sadoulet and J. Sander and K. Schneck and Schnee, {R. W.} and S. Scorza and B. Serfass and B. Shank and D. Speller and D. Toback and S. Upadhyayula and Villano, {A. N.} and B. Welliver and Wilson, {J. S.} and Wright, {D. H.} and X. Yang and S. Yellin and Yen, {J. J.} and Young, {B. A.} and J. Zhang",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = oct,

day = "12",

doi = "10.1103/PhysRevD.92.072003",

language = "English (US)",

volume = "92",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

number = "7",

}

Agnese, R, Anderson, AJ, Asai, M, Balakishiyeva, D, Barker, D, Basu Thakur, R, Bauer, DA, Billard, J, Borgland, A, Bowles, MA, Brandt, D, Brink, PL, Bunker, R, Cabrera, B, Caldwell, DO, Calkins, R, Cerdeño, DG, Chagani, H, Chen, Y, Cooley, J, Cornell, B, Crewdson, CH, Cushman, P, Daal, M, Di Stefano, PCF, Doughty, T, Esteban, L, Fallows, S, Figueroa-Feliciano, E, Godfrey, GL, Golwala, SR, Hall, J, Harris, HR, Hertel, SA, Hofer, T, Holmgren, D, Hsu, L, Huber, ME, Jardin, D, Jastram, A, Kamaev, O, Kara, B, Kelsey, MH, Kennedy, A, Kiveni, M, Koch, K, Leder, A, Loer, B, Lopez Asamar, E, Lukens, P, Mahapatra, R, Mandic, V, McCarthy, KA, Mirabolfathi, N, Moffatt, RA, Oser, SM, Page, K, Page, WA, Partridge, R, Pepin, M, Phipps, A, Prasad, K, Pyle, M, Qiu, H, Rau, W, Redl, P, Reisetter, A, Ricci, Y, Rogers, HE, Saab, T, Sadoulet, B, Sander, J, Schneck, K, Schnee, RW, Scorza, S, Serfass, B, Shank, B, Speller, D, Toback, D, Upadhyayula, S, Villano, AN, Welliver, B, Wilson, JS, Wright, DH, Yang, X, Yellin, S, Yen, JJ, Young, BA & Zhang, J 2015, 'Improved WIMP-search reach of the CDMS II germanium data', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 92, no. 7, 072003. https://doi.org/10.1103/PhysRevD.92.072003

TY - JOUR

T1 - Improved WIMP-search reach of the CDMS II germanium data

AU - Agnese, R.

AU - Anderson, A. J.

AU - Asai, M.

AU - Balakishiyeva, D.

AU - Barker, D.

AU - Basu Thakur, R.

AU - Bauer, D. A.

AU - Billard, J.

AU - Borgland, A.

AU - Bowles, M. A.

AU - Brandt, D.

AU - Brink, P. L.

AU - Bunker, R.

AU - Cabrera, B.

AU - Caldwell, D. O.

AU - Calkins, R.

AU - Cerdeño, D. G.

AU - Chagani, H.

AU - Chen, Y.

AU - Cooley, J.

AU - Cornell, B.

AU - Crewdson, C. H.

AU - Cushman, P.

AU - Daal, M.

AU - Di Stefano, P. C F

AU - Doughty, T.

AU - Esteban, L.

AU - Fallows, S.

AU - Figueroa-Feliciano, E.

AU - Godfrey, G. L.

AU - Golwala, S. R.

AU - Hall, J.

AU - Harris, H. R.

AU - Hertel, S. A.

AU - Hofer, T.

AU - Holmgren, D.

AU - Hsu, L.

AU - Huber, M. E.

AU - Jardin, D.

AU - Jastram, A.

AU - Kamaev, O.

AU - Kara, B.

AU - Kelsey, M. H.

AU - Kennedy, A.

AU - Kiveni, M.

AU - Koch, K.

AU - Leder, A.

AU - Loer, B.

AU - Lopez Asamar, E.

AU - Lukens, P.

AU - Mahapatra, R.

AU - Mandic, V.

AU - McCarthy, K. A.

AU - Mirabolfathi, N.

AU - Moffatt, R. A.

AU - Oser, S. M.

AU - Page, K.

AU - Page, W. A.

AU - Partridge, R.

AU - Pepin, M.

AU - Phipps, A.

AU - Prasad, K.

AU - Pyle, M.

AU - Qiu, H.

AU - Rau, W.

AU - Redl, P.

AU - Reisetter, A.

AU - Ricci, Y.

AU - Rogers, H. E.

AU - Saab, T.

AU - Sadoulet, B.

AU - Sander, J.

AU - Schneck, K.

AU - Schnee, R. W.

AU - Scorza, S.

AU - Serfass, B.

AU - Shank, B.

AU - Speller, D.

AU - Toback, D.

AU - Upadhyayula, S.

AU - Villano, A. N.

AU - Welliver, B.

AU - Wilson, J. S.

AU - Wright, D. H.

AU - Yang, X.

AU - Yellin, S.

AU - Yen, J. J.

AU - Young, B. A.

AU - Zhang, J.

PY - 2015/10/12

Y1 - 2015/10/12

N2 - CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ∼5keV, to increase sensitivity near a WIMP mass of 8GeV/c2. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8×10-44 and 1.18×10-41 at 90% confidence for 60 and 8.6GeV/c2 WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6)GeV/c2 WIMPs.

AB - CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ∼5keV, to increase sensitivity near a WIMP mass of 8GeV/c2. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8×10-44 and 1.18×10-41 at 90% confidence for 60 and 8.6GeV/c2 WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6)GeV/c2 WIMPs.

UR - http://www.scopus.com/inward/record.url?scp=84945306187&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84945306187&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.92.072003

DO - 10.1103/PhysRevD.92.072003

M3 - Article

AN - SCOPUS:84945306187

SN - 1550-7998

VL - 92

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 7

M1 - 072003

ER -

Improved WIMP-search reach of the CDMS II germanium data

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