0 M ar 1 99 9 A search for energy deposition by neutrinos in matter

نویسنده

  • F. Vannucci
چکیده

An exploratory search for an anomalous energy deposition by neutrinos in a germanium crystal was performed in the CERN high energy νμ beam. No signal was found and a limit is set at a level of about 10 of the normal dE/dx for a minimum ionizing particle.

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

ar X iv : a st ro - p h / 99 01 10 9 v 1 1 0 Ja n 19 99 Dark Matter and Energy in the Universe 1

For the first time, we have a plausible and complete accounting of matter and energy in the Universe. Expressed a fraction of the critical density it goes like this: neutrinos, between 0. to the critical density (within the errors). This accounting is consistent with the inflationary prediction of a flat Universe and defines three dark-matter problems: Where are the dark baryons? What is the no...

متن کامل

ar X iv : a st ro - p h / 00 05 56 8 v 1 3 0 M ay 2 00 0 Hot and Cold Dark Matter Search with GENIUS ⋆

GENIUS is a proposal for a large volume detector to search for rare events. An array of 40–400 ’naked’ HPGe detectors will be operated in a tank filled with ultrapure liquid nitrogen. After a description of performed technical studies of detector operation in liquid nitrogen and of Monte Carlo simulations of expected background components, the potential of GENIUS for detecting WIMP dark matter,...

متن کامل

ar X iv : g r - qc / 9 90 60 06 v 1 2 J un 1 99 9 Non - universal gravitational couplings of neutrinos in matter ∗

When neutrinos travel through a normal matter medium, the electron neutrinos couple differently to gravity compared to the other neutrinos, due to the presence of electrons in the medium and the absence of the other charged leptons. The matter-induced gravitational couplings of the neutrinos under such conditions are calculated and their contribution to the neutrino index of refraction in the p...

متن کامل

ar X iv : a st ro - p h / 99 07 16 8 v 1 1 3 Ju l 1 99 9 1 VACUUM ENERGY : IF NOT NOW , THEN WHEN ?

Here the various Ωi are the fractional contributions to the present critical density ρcr ≡ 3H 0/8πG. From the cosmic background radiation (CBR), we know that the spatial curvature Ωk ≡ 1 − Ωm − ΩX ± 0.2, a flat universe of critical density, dominated by non-baryonic matter and smooth energy. Inflation explains this flatness of the present universe, as a consequence of an early de Sitter phase m...

متن کامل

ar X iv : h ep - p h / 02 03 27 2 v 1 2 9 M ar 2 00 2 Flux of Atmospheric Neutrinos 1 Flux of Atmospheric Neutrinos ∗

Atmospheric neutrinos produced by cosmic-ray interactions in the atmosphere are of interest for several reasons. As a beam for studies of neutrino oscillations they cover a range of parameter space hitherto unexplored by accelerator neutrino beams. The atmospheric neutrinos also constitute an important background and calibration beam for neutrino astronomy and for the search for proton decay an...

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:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999