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Constraints on Lightly Ionizing Particles from CDMSlite

Alkhatib, I. and Amaral, D. W. P. and Aralis, T. and Aramaki, T. and Arnquist, I. J. and Ataee Langroudy, I. and Azadbakht, E. and Banik, S. and Barker, D. and Bathurst, C. and Bauer, D. A. and Bezerra, L. V. S. and Bhattacharyya, R. and Bowles, M. A. and Brink, P. L. and Bunker, R. and Cabrera, B. and Calkins, R. and Cameron, R. A. and Cartaro, C. and Cerdeño, D. G. and Chang, Y.-Y. and Chaudhuri, M. and Chen, R. and Chott, N. and Cooley, J. and Coombes, H. and Corbett, J. and Cushman, P. and De Brienne, F. and di Vacri, M. L. and Diamond, M. D. and Fascione, E. and Figueroa-Feliciano, E. and Fink, C. W. and Fouts, K. and Fritts, M. and Gerbier, G. and Germond, R. and Ghaith, M. and Golwala, S. R. and Harris, H. R. and Hines, B. A. and Hollister, M. I. and Hong, Z. and Hoppe, E. W. and Hsu, L. and Huber, M. E. and Iyer, V. and Jardin, D. and Jastram, A. and Kashyap, V. K. S. and Kelsey, M. H. and Kubik, A. and Kurinsky, N. A. and Lawrence, R. E. and Li, A. and Loer, B. and Lopez Asamar, E. and Lukens, P. and MacFarlane, D. B. and Mahapatra, R. and Mandic, V. and Mast, N. and Mayer, A. J. and Meyer zu Theenhausen, H. and Michaud, É. M. and Michielin, E. and Mirabolfathi, N. and Mohanty, B. and Morales Mendoza, J. D. and Nagorny, S. and Nelson, J. and Neog, H. and Novati, V. and Orrell, J. L. and Oser, S. M. and Page, W. A. and Partridge, R. and Podviianiuk, R. and Ponce, F. and Poudel, S. and Pradeep, A. and Pyle, M. and Rau, W. and Reid, E. and Ren, R. and Reynolds, T. and Roberts, A. and Robinson, A. E. and Saab, T. and Sadoulet, B. and Sander, J. and Sattari, A. and Schnee, R. W. and Scorza, S. and Serfass, B. and Sincavage, D. J. and Stanford, C. and Street, J. and Toback, D. and Underwood, R. and Verma, S. and Villano, A. N. and von Krosigk, B. and Watkins, S. L. and Wilson, J. S. and Wilson, M. J. and Winchell, J. and Wright, D. H. and Yellin, S. and Young, B. A. and Yu, T. C. and Zhang, E. and Zhang, H. G. and Zhao, X. and Zheng, L. (2021) Constraints on Lightly Ionizing Particles from CDMSlite. Physical Review Letters, 127 (8). Art. No. 081802. ISSN 0031-9007. doi:10.1103/PhysRevLett.127.081802.

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The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) achieved efficient detection of very small recoil energies in its germanium target, resulting in sensitivity to lightly ionizing particles (LIPs) in a previously unexplored region of charge, mass, and velocity parameter space. We report first direct-detection limits calculated using the optimum interval method on the vertical intensity of cosmogenically produced LIPs with an electric charge smaller than e/(3 × 10⁵), as well as the strongest limits for charge ≤ e/160, with a minimum vertical intensity of 1.36 × 10⁻⁷ cm⁻² s⁻¹ sr⁻¹ at charge e/160. These results apply over a wide range of LIP masses (5 MeV/c² to 100 TeV/c²) and cover a wide range of βγ values (0.1–10⁶), thus excluding nonrelativistic LIPs with βγ as small as 0.1 for the first time.

Item Type:Article
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URLURL TypeDescription Paper
Banik, S.0000-0003-1925-0088
Chang, Y.-Y.0000-0002-6441-980X
Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2021 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. (Received 18 November 2020; revised 11 June 2021; accepted 27 July 2021; published 18 August 2021) Funded by SCOAP3. The SuperCDMS Collaboration gratefully acknowledges technical assistance from the staff of the Soudan Underground Laboratory and the Minnesota Department of Natural Resources. The CDMSlite and iZIP detectors were fabricated in the Stanford Nanofabrication Facility, which is a member of the National Nanofabrication Infrastructure Network, sponsored and supported by the NSF. Funding and support were received from the National Science Foundation, the U.S. Department of Energy (DOE), NSF OISE 1743790, Fermilab URA Visiting Scholar Grant No. 15-S-33, NSERC Canada, the Canada First Excellence Research Fund, the Arthur B. McDonald Institute (Canada), the Department of Atomic Energy Government of India (DAE), the Department of Science and Technology (DST, India) and the DFG (Germany)–Project No. 420484612 and under Germany’s Excellence Strategy–EXC 2121 “Quantum Universe”—390833306. Fermilab is operated by Fermi Research Alliance, LLC, SLAC is operated by Stanford University, and PNNL is operated by the Battelle Memorial Institute for the U.S. Department of Energy under Contracts No. DE-AC02-37407CH11359, No. DE-AC02-76SF00515, and No. DE-AC05-76RL01830, respectively.
Group:Astronomy Department
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-37407CH11359
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Canada First Excellence Research FundUNSPECIFIED
Arthur B. McDonald InstituteUNSPECIFIED
Department of Atomic Energy (India)UNSPECIFIED
Department of Science and Technology (India)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)420484612
Deutsche Forschungsgemeinschaft (DFG)390833306
Department of Energy (DOE)DE-AC02-37407CH11359
Department of Energy (DOE)DE-AC02-76SF00515
Department of Energy (DOE)DE-AC05-76RL01830
Issue or Number:8
Record Number:CaltechAUTHORS:20210830-203806826
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:110614
Deposited By: George Porter
Deposited On:31 Aug 2021 14:11
Last Modified:31 Aug 2021 14:11

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