Production of Neutral Mesons by 340-Mev Protons on Hydrogen
نویسندگان
چکیده
منابع مشابه
Preliminary Results on the Production of Mesons by Photons on Carbon and Hydrogen
entering into a delayed coincidence. The stability of the detecting system depends on the sensitivity of the meson counting rate to the minimum amplitudes required of the pulses. Such a plateau curve {counting rate IIs. minimum pulse amplitude) is shown in Flg. 3. With a synchrotron beam intensity of about 10"Mev/sec. and the geometry of Fig. 1, a target of 4 g/cm' of carbon, and 1 in. of alumi...
متن کاملSome effects of 138-Mev protons on primates.
One hundred two primates (Maeaca mulatta) were irradiated with spaced doses of 138 Mev protons ranging from 105 to 1,220 rads. An LD,,,,^,, of 516 ± 30 rads was estimated from the cumulative mortality data. A comparison of the proton LDr,0/;1(, with the LDS0/S0 from a previous study in which primates were irradiated with 2 Mev x-rays provides an estimate of 1.30 ± .09 (S.E.) for the mortality R...
متن کاملPhotoproduction of Scalar Mesons on Protons and Nuclei
We study the photoproduction of scalar mesons close to the threshold of f0(980) and a0(980) using a unitary chiral model. Peaks for both resonances show up in the invariant mass distributions of pairs of pseudoscalar mesons. A discussion is made on the photoproduction of these resonances in nuclei, which can shed light on their nature, a subject of continuous debate. PACS: 12.39.Fe, 13.60.Le, 2...
متن کاملProduction of 25 MeV Protons in CO2 Laser-Plasma Interactions in a Gas Jet
At the Neptune Laboratory at UCLA, we have developed a high-power CO2 MOPA laser system which produces world record, multi-terawatt 10μm pulses. The CO2 laser pulses consist of a train of 3ps pulses separated by 18ps, each with a peak power of up to 4TW and a total pulse train energy of ∼100J. These relativistic laser pulses are used for Laser Driven Ion Acceleration in a H2 gas jet operated ar...
متن کاملTracking Study of 200 MeV Protons within a PMMA Phantom
This paper describes an experiment that determined the position, and its associated uncertainty, of a proton at three different depths inside of a polymethyl-methacrylate (PMMA) absorber. These observed positions prove the fact that one can predict the most likely path (MLP) of a proton moving through a uniform medium, as long as the displacement and angle of that proton are known at the absorb...
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: Physical Review
سال: 1953
ISSN: 0031-899X
DOI: 10.1103/physrev.92.780