Search for light dark matter in XENON10 data.

نویسندگان

  • J Angle
  • E Aprile
  • F Arneodo
  • L Baudis
  • A Bernstein
  • A I Bolozdynya
  • L C C Coelho
  • C E Dahl
  • L DeViveiros
  • A D Ferella
  • L M P Fernandes
  • S Fiorucci
  • R J Gaitskell
  • K L Giboni
  • R Gomez
  • R Hasty
  • L Kastens
  • J Kwong
  • J A M Lopes
  • N Madden
  • A Manalaysay
  • A Manzur
  • D N McKinsey
  • M E Monzani
  • K Ni
  • U Oberlack
  • J Orboeck
  • G Plante
  • R Santorelli
  • J M F dos Santos
  • S Schulte
  • P Shagin
  • T Shutt
  • P Sorensen
  • C Winant
  • M Yamashita
چکیده

We report results of a search for light (≲10  GeV) particle dark matter with the XENON10 detector. The event trigger was sensitive to a single electron, with the analysis threshold of 5 electrons corresponding to 1.4 keV nuclear recoil energy. Considering spin-independent dark matter-nucleon scattering, we exclude cross sections σ(n)>7×10(-42)  cm(2), for a dark matter particle mass m(χ)=7  GeV. We find that our data strongly constrain recent elastic dark matter interpretations of excess low-energy events observed by CoGeNT and CRESST-II, as well as the DAMA annual modulation signal.

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

The unbearable lightness of being: CDMS versus XENON

The CDMS-II collaboration has reported 3 events in a Si detector, which are consistent with being nuclear recoils due to scattering of Galactic dark matter particles with a mass of ∼ 8.6 GeV and a cross-section on neutrons of ∼ 2 × 10−41 cm2. While a previous result from the XENON10 experiment has supposedly ruled out such particles as dark matter, we find by reanalysing the XENON10 data that t...

متن کامل

First direct detection limits on sub-GeV dark matter from XENON10.

The first direct detection limits on dark matter in the MeV to GeV mass range are presented, using XENON10 data. Such light dark matter can scatter with electrons, causing ionization of atoms in a detector target material and leading to single- or few-electron events. We use 15  kg day of data acquired in 2006 to set limits on the dark-matter-electron scattering cross section. The strongest bou...

متن کامل

The XENON Dark Matter Search: Status of XENON10

The XENON experiment searches for dark matter particles called WIMPs using liquid xenon (LXe) as the active target. The detector is a 3D position sensitive Time Projection Chamber optimized to simultaneously measure the ionization and scintillation produced by a recoil event of energy as low as 16 keV. The distinct ratio of the two signals for nuclear recoils arising from WIMPs and neutrons and...

متن کامل

Mirror dark matter and the new DAMA / LIBRA results : A simple explanation for a beautiful experiment

Recently, the DAMA/LIBRA experiment has convincingly confirmed the DAMA/NaI annual modulation signal, experimentally demonstrating the existence of non-baryonic dark matter in the halo of our galaxy. Meanwhile, in another part of town, other experiments such as CDMS and XENON10 have not detected any evidence for dark matter. One promising dark matter candidate which can reconcile the positive D...

متن کامل

First limits on WIMP dark matter from the XENON10 experiment

XENON10 is a dual phase liquid/gas xenon Time Projection Chamber (TPC) for the direct search of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM). The detector, located in the Gran Sasso National Laboratory in Italy, aims at measuring the recoil energy from elastic WIMP-nucleus scattering. It distinguishes electronic interactions (gamma and beta backgrounds) from nuclear recoils based...

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 107 5  شماره 

صفحات  -

تاریخ انتشار 2011