FirstπKatom lifetime measurement and recent results from the DIRAC experiment
نویسندگان
چکیده
منابع مشابه
DIRAC Experiment at CERN: LIFETIME MEASUREMENT OF PIONIUM Collaboration DIRAC
The DIRAC experiment, a magnetic double arm spectrometer, aims to measure the π + π − atom lifetime with 10% precision, using the high intensity 24 GeV/c proton beam of the CERN Proton Synchrotron. Since the value of this lifetime of order 10 s is dictated by strong interaction at low energy, a precise measurement of this quantity enables to study characteristic pion parameters in detail and to...
متن کاملRecent Results from the K2K Experiment
The neutrino beam used in the K2K experiment is produced by a 12 GeV proton beam taken from the KEK Proton Synchrotron(PS) with fast extraction. After hitting an aluminum target the positively charged particles, mostly pions, are focused by a pair of horns. The beam is approximately 98% muon neutrino with a 2% electron neutrino contamination. The peak energy of the resulting neutrinos is 1 GeV,...
متن کاملRecent Results from the HiRes Experiment
rescence detectors. Two spectral features have been found: The “ankle” is clearly seen at about 1018.5 eV. We have also evidence for a suppression of the cosmic ray flux at an energy of about 1019.8 eV, where the GZK effect is expected to become apparent in the spectrum. The composition of cosmic rays has been measured between 1018.0 and 1019.4 eV using the Xmax method. A measurement of the pro...
متن کاملRecent Results from the SAMPLE Experiment
The previous two SAMPLE experiments yielded a measurement of the axial e-N form factor GA substantially different from the theoretical estimate. In order to confirm this observation, a third SAMPLE experiment was carried out at a lower beam energy of 125 MeV (Q = 0.038 (GeV/c)) on a deuterium target. The data analysis is now at the final stage and the results are consistent with the theoretical...
متن کاملRecent Results from the Nomad Experiment
NOMAD is a short baseline neutrino oscillation experiment searching for ! and ! e oscillations in the CERN SPS wide band neutrino beam. The experiment has been collecting data since July 1995 and the data taking will continue until at least the end of 1997. A preliminary analysis based on the 1995 data sample allows NOMAD to set 90% con dence limits of sin 2 < 3:4 10 3 for ! and sin 2 2 e < 2 1...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2014
ISSN: 2100-014X
DOI: 10.1051/epjconf/20148101019