Search for Low-Mass Weakly Interacting Massive Particles with SuperCDMS
R. Agnese(University of Florida), A. J. Anderson(Massachusetts Institute of Technology), M. Asai(SLAC National Accelerator Laboratory), D. Balakishiyeva(University of Florida), R. Basu Thakur(Fermi National Accelerator Laboratory), D. Bauer(Fermi National Accelerator Laboratory), J. Beaty(University of Minnesota), J. Billard(Massachusetts Institute of Technology), A. W. Borgland(SLAC National Accelerator Laboratory), M. A. Bowles(Syracuse University), D. Brandt(SLAC National Accelerator Laboratory), P. L. Brink(SLAC National Accelerator Laboratory), R. Bunker(Syracuse University), B. Cabrera(Stanford University), D. O. Caldwell(University of California, Santa Barbara), D. G. Cerdeño(Universidad Autónoma de Madrid), H. Chagani(University of Minnesota), Y. Chen(Syracuse University), M. Cherry(SLAC National Accelerator Laboratory), J. Cooley(Southern Methodist University), Bruce Cornell(California Institute of Technology), C. H. Crewdson(Queen's University), P. Cushman(University of Minnesota), M. Daal(University of California, Berkeley), D. DeVaney(University of Minnesota), P. C. F. Di Stefano(Queen's University), E. Do Couto E Silva(SLAC National Accelerator Laboratory), T. Doughty(University of California, Berkeley), Luis Esteban(Universidad Autónoma de Madrid), S. Fallows(University of Minnesota), E. Figueroa‐Feliciano(Massachusetts Institute of Technology), G. L. Godfrey(SLAC National Accelerator Laboratory), S. R. Golwala(California Institute of Technology), J. Hall(Pacific Northwest National Laboratory), Steen H. Hansen(Fermi National Accelerator Laboratory), H. R. Harris(Texas A&M University), S. A. Hertel(Massachusetts Institute of Technology), B. A. Hines(University of Colorado Denver), T. Höfer(University of Minnesota), D. Holmgren(Fermi National Accelerator Laboratory), L. Hsu(Fermi National Accelerator Laboratory), M. E. Huber(University of Colorado Denver), A. Jastram(Texas A&M University), O. Kamaev(Queen's University), Burhan Kara(Southern Methodist University), M. Kelsey(SLAC National Accelerator Laboratory), S. Al Kenany(University of California, Berkeley), A. Kennedy(University of Minnesota), M. Kiveni(Syracuse University), K. Koch(University of Minnesota), A. Leder(Massachusetts Institute of Technology), B. Loer(Fermi National Accelerator Laboratory), E. Lopez Asamar(Universidad Autónoma de Madrid), R. Mahapatra(Texas A&M University), V. Mandic(University of Minnesota), C. Moreno Martinez(Queen's University), K. A. McCarthy(Massachusetts Institute of Technology), N. Mirabolfathi(University of California, Berkeley), R. A. Moffatt(Stanford University), R. Nelson(California Institute of Technology), L. Novák(Stanford University), K. Page(Queen's University), R. Partridge(SLAC National Accelerator Laboratory), M. Pepin(University of Minnesota), A. Phipps(University of California, Berkeley), Mark Platt(Texas A&M University), K. Prasad(Texas A&M University), M. Pyle(University of California, Berkeley), H. Qiu(Southern Methodist University), W. Rau(Queen's University), P. Redl(Stanford University), A. Reisetter(University of Evansville), R. Resch(SLAC National Accelerator Laboratory), Y. Ricci(Queen's University), M. Ruschman(Fermi National Accelerator Laboratory), T. Saab(University of Florida), B. Sadoulet(Lawrence Berkeley National Laboratory), J. Sander(University of South Dakota), R. L. Schmitt(Fermi National Accelerator Laboratory), K. Schneck(SLAC National Accelerator Laboratory), R. W. Schnee(Syracuse University), S. Scorza(Southern Methodist University), D. N. Seitz(University of California, Berkeley), B. Serfass(University of California, Berkeley), B. Shank(Stanford University), D. Speller(University of California, Berkeley), A. Tomada(SLAC National Accelerator Laboratory), S. Upadhyayula(Texas A&M University), A. N. Villano(University of Minnesota), B. Welliver(University of Florida), D. H. Wright(SLAC National Accelerator Laboratory), S. Yellin(Stanford University), J. J. Yen(Stanford University), Betty Young(Santa Clara University), J. Zhang(University of Minnesota)
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Abstract
We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg days was analyzed for WIMPs with mass <30 GeV/c(2), with the signal region blinded. Eleven events were observed after unblinding. We set an upper limit on the spin-independent WIMP-nucleon cross section of 1.2×10(-42) cm(2) at 8 GeV/c(2). This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses <6 GeV/c(2).
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