20 research outputs found
Study of in the vicinity of
Using 2917 of data accumulated at 3.773~,
44.5~ of data accumulated at 3.65~ and data accumulated
during a line-shape scan with the BESIII detector, the reaction
is studied considering a possible interference
between resonant and continuum amplitudes. The cross section of
,
, is found to have two
solutions, determined to be () pb with the phase angle
(0.11 pb at the 90% confidence level),
or ) pb with both of which
agree with a destructive interference. Using the obtained cross section of
, the cross section of , which is useful information for the future PANDA experiment, is
estimated to be either () nb ( nb at 90% C.L.) or
nb
Construction, assembly and tests of the ATLAS electromagnetic end-cap calorimeters
The construction and the assembly of the two end-caps of the ATLAS liquid argon electromagnetic calorimeter as well as their test and qualification programs are described. The work described here started at the beginning of 2001 and lasted for approximately three years. The results of the qualification tests performed before installation in the LHC ATLAS pit are given. The detectors are now installed in the ATLAS cavern, full of liquid argon and being commissioned. The complete detectors coverage is powered with high voltage and readout
A Comparison of Artificial Neural Network and Regression Model for Predicting the Rice Production in Lower Northern Thailand
Metoprolol protects against myocardial infarction by inhibiting miR‐1 expression in rats
Search for emission of gamma-ray bursts with the ARGO-YBJ detector
The ARGO-YBJ experiment has been designed to decrease the energy threshold of tipical Extensive Air Shower arrays by exploiting the high altitude location (Tibet P.R. China, 4300 m a.s..l.) and the full coverage. The lower energy limit of the detector (a few GeV) is reached with the single particle technique, recording the counting rate at fixed time intervals. We present the first results concerning the search for emission from Gamma-Ray Bursts in coincidence with satellite detections
First results on the angular resolution of the ARGO-YBJ detector
We present the first results on the angular resolution of the ARGO-YBJ detector
in data taking at the Yangbajing Laboratory (Tibet, P.R. China, 4300 m a.s.l.)
Status of the ARGO-YBJ experiment
The ARGO-YBJ experiment, under construction at the Yangbaijing Laboratory (P.R.
China, 4300 m a.s.l.), is a full coverage detector of dimension 74£78 m2 made by a single layer
of Resistive Plate Counters. About 10% of the final active area (» 700 m2) is in stable operation
to check the detector performance and the reconstruction algorithms. In this paper the status of the
experiment and the analysis of the first data are presented
Multiscale image analysis applied to gamma/h discrimination for VHE gamma-astronomy with ARGO-YBJ
Intrinsic differences in processes involved in the electromagnetic and hadronic shower development in the atmosphere have been avidenced by means of a careful analysis of the event image given by ARGO-YBJ detector