Parity-violating (pv) effects in inclusive hadron and jet productions in high energy hadronhadron collisions are analyzed. Such effects arise from the interference between strong and weak amplitudes. This interference gives rise to a nonzero value of the pv parameters AL and PL, where AL measures the difference in the inclusive cross sections of, for example, p + p → jet +X (X=anything), with o...

There are few reports on the biological homogeneity within the spread-out Bragg peak (SOBP) of proton beams. Therefore, to evaluate the relative biological effectiveness (RBE) and the oxygen enhancement ratio (OER), human salivary gland tumor (HSG) cells were irradiated at the plateau position (position A) and three different positions within a 6-cm-wide SOBP (position B, 26 mm proximal to the ...

Existing systems for proton beam dosimetry are limited in their ability to provide a complete, accurate, and detailed account of volumetric dose distribution. In this work, we describe the design and development of a portable, fast, and reusable liquid scintillator-based three-dimensional (3D) optical detection system for use in proton therapy. Our long-term goal is to use this system clinicall...

Spallation sources dedicated to neutron scattering experiments, as well as multipurpose facilities serving several applications call for pulsed mode operation of a high intensity proton linac. There is general agreement on the superconducting technology for the high-energy part, which offers some advantages, like higher gradient capabilities or operational costs reduction, as compared to room-t...

Some proton-incident data have been published on elastic-scattering and total-reaction cross sections in the intermediate energy region. Such results as well as experimental data obtained by polarized proton beams are useful for parametrizing global optical model potentials in detail. In contrast, neutronincident experiments on elastic scattering are more difficult than proton ones, so that the...

The design and construction of a recoil detector for the measurement of recoil protons of antiproton-proton elastic scattering at scattering angles close to 90◦ are described. The performance of the recoil detector has been tested in the laboratory with radioactive sources and at COSY with proton beams by measuring proton-proton elastic scattering. The results of laboratory tests and commission...

We discuss the possibility of using future high–intensity low–energy neutrino beams for precision tests of the Standard Model. In particular we consider the determination of the electroweak mixing angle from elastic and quasi–elastic neutrino–nucleon scattering at a superbeam or β–beam. 1. The High–Intensity Frontier and Neu-trino Beams The search for new physics beyond the standard model in th...

We study the production of W and Z gauge bosons in proton-proton and proton-neutron collisions up to a center-of-mass energy √ s = 0.5 TeV , in connection with the realistic possibility of having proton-deuteron collisions at RHIC with a high luminosity. We stress the importance of measuring unpolarized cross sections for a better determination of the flavor asymmetry of the sea quarks. Since p...

Proton-induced nuclide production cross sections for Bi at incident energies of 0.4, 1.5, and 3.0 GeV are measured with the activation method using proton beams accelerated from Rapid-Cycling Synchrotron Japan Proton Accelerator Research Complex (J-PARC). A total 127 cross-section data obtained. The compared two types Monte Carlo-based spallation models (i.e. INCL++ coupled ABLA07 INCL4.6 GEM),...