Upper limits for the production of new light gauge bosons in 0 , and 0 decays have been obtained with the Crystal Barrel detector. The kinematically well-constrained reactions pp ! 0 0 P have been studied, where P 0 ; ; 0 decays through the emission of a single photon recoiling against a missing state X. X can be a long-lived weakly interacting particle or X !. This paper gives full detail of t...

Low energy compact cyclotrons for short-life isotopes production delivered to the Positron Emission Tomography (PET) facilities have foreseeable prospects with growing demands in medical applications. The Huazhong University of Science and Technology (HUST) proposed to develop a 10MeV PET cyclotron CYCHU-10. The design study of the main magnet and the central region was introduced. A matrix sha...

Inclusive K0 s K 0 s production in deep inelastic ep scattering at HERA has been studied with the ZEUS detector using an integrated luminosity of 120 pb−1. Two states are observed at masses of 1537+9 −8 MeV and 1726±7 MeV, as well as an enhancement around 1300 MeV. The state at 1537 MeV is consistent with the well established f ′ 2(1525). The state at 1726 MeV may be the glueball candidate f0(1...

We report the generation of MeV x rays using an undulator and accelerator that are both driven by the same 100-terawatt laser system. The laser pulse driving the accelerator and the scattering laser pulse are independently optimized to generate a high energy electron beam (>200  MeV) and maximize the output x-ray brightness. The total x-ray photon number was measured to be ∼1×10(7), the source ...

Ab s tract. We report on the ionization states of -0.5-50 MeV/nucleon ions in the 6 November 1997 solar particle event using instrumentation on the SAMPEX satellite and the geomagnetic cutoff technique. Using the geomagnetic cutoffs of-10 MeV 'Ile and -20 MeV protons, we infer the ionization states of -0.5-50 MeV/nucleon C-Fe by measuring their latitude distributions. The geomagnetic cutoff met...

Objective(s): The purpose of this study was to investigate cytotoxicity and membrane toxicity effects induced by Mesobuthus eupeus venom (MEV) on the HT-29 cell line. Materials and Methods: To determine the in vitro cytotoxicity via MTT assays, HT-29 (as cancer cell line) and Hek-293T (as normal cell) were treated through different conce...

ABSTR ACT: The harmonic neutron hypothesis states that all of the fundamental constants, when expressed as frequency equivalent coupling constant ratios, are related to the annihilation frequency of the neutron, vn 2.271859 × 1023 Hz. The constants are interrelated by classic standing wave, harmonic number properties, and have classic quantum spectral characteristics. If vns is raised by the ex...

BACKGROUND Mink enteritis virus (MEV) causes mink viral enteritis, an acute and highly contagious disease whose symptoms include violent diarrhea, and which is characterized by high morbidity and mortality. Nanoparticle-assisted polymerase chain reaction (nanoPCR) is a recently developed technique for the rapid detection of bacterial and viral DNA. Here we describe a novel nanoPCR assay for the...

BACKGROUND For breast cancer patients who require electron boost energies between 6 and 9 MeV, an energy degraders (ED) in the 9 MeV beamline was specially designed and manufactured to increase the skin dose of 6 MeV and to reduce the penetration depth of 9 MeV beams. METHODS We used Monte Carlo (MC) techniques as a guide in the design of ED for use with linear accelerators. In order to satis...