Search for low-mass weakly interacting massive particles with SuperCDMS.

نویسندگان

  • R Agnese
  • A J Anderson
  • M Asai
  • D Balakishiyeva
  • R Basu Thakur
  • D A Bauer
  • J Beaty
  • J Billard
  • A Borgland
  • M A Bowles
  • D Brandt
  • P L Brink
  • R Bunker
  • B Cabrera
  • D O Caldwell
  • D G Cerdeno
  • H Chagani
  • Y Chen
  • M Cherry
  • J Cooley
  • B Cornell
  • C H Crewdson
  • P Cushman
  • M Daal
  • D DeVaney
  • P C F Di Stefano
  • E Do Couto E Silva
  • T Doughty
  • L Esteban
  • S Fallows
  • E Figueroa-Feliciano
  • G L Godfrey
  • S R Golwala
  • J Hall
  • S Hansen
  • H R Harris
  • S A Hertel
  • B A Hines
  • T Hofer
  • D Holmgren
  • L Hsu
  • M E Huber
  • A Jastram
  • O Kamaev
  • B Kara
  • M H Kelsey
  • S Kenany
  • A Kennedy
  • M Kiveni
  • K Koch
  • A Leder
  • B Loer
  • E Lopez Asamar
  • R Mahapatra
  • V Mandic
  • C Martinez
  • K A McCarthy
  • N Mirabolfathi
  • R A Moffatt
  • R H Nelson
  • L Novak
  • K Page
  • R Partridge
  • M Pepin
  • A Phipps
  • M Platt
  • K Prasad
  • M Pyle
  • H Qiu
  • W Rau
  • P Redl
  • A Reisetter
  • R W Resch
  • Y Ricci
  • M Ruschman
  • T Saab
  • B Sadoulet
  • J Sander
  • R L Schmitt
  • K Schneck
  • R W Schnee
  • S Scorza
  • D N Seitz
  • B Serfass
  • B Shank
  • D Speller
  • A Tomada
  • S Upadhyayula
  • A N Villano
  • B Welliver
  • D H Wright
  • S Yellin
  • J J Yen
  • B A Young
  • J Zhang
چکیده

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).

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

From CDMS to SuperCDMS

The Cryogenic Dark Matter Search (CDMS) and SuperCDMS experiments seek hypothetical weakly-interacting, massive particles (WIMPs) that could account for the majority of matter in the Universe, by means of cryogenic germanium detectors. We provide an update on the status of the SuperCDMS experiment, and discuss the joint CDMS-EDELWEISS analysis.

متن کامل

Search for low-mass weakly interacting massive particles using voltage-assisted calorimetric ionization detection in the SuperCDMS experiment.

SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by particle interactions. The data were c...

متن کامل

Present Status of the SuperCDMS program

The expected final reach of the Weakly Interacting Massive Particle (WIMP) search experiment CDMS-II by the end of 2007 is a WIMP-nucleon crosssection sensitivity of 2.1 × 10−44 cm2. To proceed further in our search, we have proposed the SuperCDMS Phase A project that would deploy 42 1-inch thick Ge detectors, at a site deeper than the location of CDMS II, and reach a desired sensitivity goal o...

متن کامل

The SuperCDMS proposal for dark matter detection

Presently the CDMS-II collaboration’s Weakly Interacting Massive Particle (WIMP) search at the Soudan Underground Laboratory sets the most stringent exclusion limits of any WIMP cold dark matter direct-detection experiment. To extend our reach further, to WIMP-nucleon cross-sections in the range 10 46 10 44 cm, we propose SuperCDMS, which would take advantage of a very deep site. One promising ...

متن کامل

Direct and Indirect Searches for Dark Matter in the Form of Weakly Interacting Massive Particles (wimps)

Numerous lines of evidence indicate that the matter content of the Universe is dominated by some unseen component. Determining the nature of this Dark Matter is one of the most important problems in cosmology. Weakly Interacting Massive Particles (WIMPs) are widely considered to be one of the best candidates which may comprise the Dark Matter. A brief overview of the different methods being use...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review letters

دوره 112 24  شماره 

صفحات  -

تاریخ انتشار 2014