Details

Autor(en) / Beteiligte

• Agnese, R.
• Aralis, T.
• Aramaki, T.
• Arnquist, I. J.
• Azadbakht, E.
• Baker, W.
• Banik, S.
• Barker, D.
• Bauer, D. A.
• Binder, T.
• Bowles, M. A.
• Brink, P. L.
• Bunker, R.
• Cabrera, B.
• Calkins, R.
• Cameron, R. A.
• Cartaro, C.
• Cerdeño, D. G.
• Chang, Y.-Y.
• Cooley, J.
• Cornell, B.
• Cushman, P.
• De Brienne, F.
• Doughty, T.
• Fascione, E.
• Figueroa-Feliciano, E.
• Fink, C. W.
• Fritts, M.
• Gerbier, G.
• Germond, R.
• Ghaith, M.
• Golwala, S. R.
• Harris, H. R.
• Herbert, N.
• Hong, Z.
• Hoppe, E. W.
• Hsu, L.
• Huber, M. E.
• Iyer, V.
• Jardin, D.
• Jastram, A.
• Jena, C.
• Kelsey, M. H.
• Kennedy, A.
• Kubik, A.
• Kurinsky, N. A.
• Lawrence, R. E.
• Loer, B.
• Lopez Asamar, E.
• Lukens, P.
• MacDonell, D.
• Mahapatra, R.
• Mandic, V.
• Mast, N.
• Miller, E.
• Mirabolfathi, N.
• Mohanty, B.
• Morales Mendoza, J. D.
• Nelson, J.
• Neog, H.
• Orrell, J. L.
• Oser, S. M.
• Page, W. A.
• Partridge, R.
• Pepin, M.
• Ponce, F.
• Poudel, S.
• Pyle, M.
• Qiu, H.
• Rau, W.
• Reisetter, A.
• Ren, R.
• Reynolds, T.
• Roberts, A.
• Robinson, A. E.
• Rogers, H. E.
• Saab, T.
• Sadoulet, B.
• Sander, J.
• Scarff, A.
• Schnee, R. W.
• Scorza, S.
• Senapati, K.
• Serfass, B.
• Speller, D.
• Stanford, C.
• Stein, M.
• Street, J.
• Tanaka, H. A.
• Toback, D.
• Underwood, R.
• Villano, A. N.
• von Krosigk, B.
• Watkins, S. L.
• Wilson, J. S.
• Wilson, M. J.
• Winchell, J.
• Wright, D. H.
• Yellin, S.
• Young, B. A.

Titel

Search for low-mass dark matter with CDMSlite using a profile likelihood fit

Ist Teil von

• Physical review. D, 2019-03, Vol.99 (6), Article 062001

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors. The experiment has achieved a low energy threshold with improved sensitivity to low-mass ( < 10 GeV / c 2 ) dark matter particles. We present an analysis of the final CDMSlite dataset, taken with a different detector than was used for the two previous CDMSlite datasets. This analysis includes a data “salting” method to protect against bias, improved noise discrimination, background modeling, and the use of profile likelihood methods to search for a dark matter signal in the presence of backgrounds. We achieve an energy threshold of 70 eV and significantly improve the sensitivity for dark matter particles with masses between 2.5 and 10 GeV / c 2 compared to previous analyses. We set an upper limit on the dark matter-nucleon scattering cross section in germanium of 5.4 × 10 − 42 cm 2 at 5 GeV / c 2 , a factor of ~ 2.5 improvement over the previous CDMSlite result.