scholarly journals ANTIHYPERON POLARIZATION IN HIGH-ENERGY INCLUSIVE PROCESSES

2008 ◽  
Vol 17 (02) ◽  
pp. 371-392 ◽  
Author(s):  
C. C. BARROS ◽  
Y. HAMA

We propose a model for the antihyperon polarization in high-energy proton-nucleus inclusive reactions, based on the final-state interactions between the antihyperons and other produced particles (predominantly pions). To formulate this idea, we use the previously obtained low-energy pion-(anti-)hyperon interaction using effective chiral Lagrangians, and a hydrodynamic parametrization of the background matter, which expands and decouples at a certain freezeout temperature.1.

1977 ◽  
Vol 3 (9) ◽  
pp. 1225-1240 ◽  
Author(s):  
B S Aladashvili ◽  
J -F Germond ◽  
V V Glagolev ◽  
M S Nioradze ◽  
T Siemiarczuk ◽  
...  

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2030
Author(s):  
Bing Ye ◽  
Li-Hua Mo ◽  
Tao Liu ◽  
You-Mei Sun ◽  
Jie Liu

The on-orbit single-event upset (SEU) rate of nanodevices is closely related to the orbital parameters. In this paper, the on-orbit SEU rate (OOSR) induced by a heavy ion (HI), high-energy proton (HEP) and low-energy proton (LEP) for a 65 nm SRAM device is calculated by using the software SPACE RADIATION under different orbits based on the experimental data. The results indicate that the OOSR induced by the HI, HEP and LEP varies with the orbital parameters. In particular, the orbital height, inclination and shieling thickness are the key parameters that affect the contribution of the LEP to the total OOSR. Our results provide guidance for the selection of nanodevices on different orbits.


1977 ◽  
Vol 3 (1) ◽  
pp. 7-20 ◽  
Author(s):  
B S Aladashvili ◽  
J -F Germond ◽  
V V Glagolev ◽  
M S Nioradze ◽  
T Siemiarczuk ◽  
...  

2014 ◽  
Vol 778-780 ◽  
pp. 525-528 ◽  
Author(s):  
Matthieu Florentin ◽  
Mihaela Alexandru ◽  
Aurore Constant ◽  
Bernd Schmidt ◽  
José Millan ◽  
...  

The 4H-SiC MOSFET electrical response to 180 keV proton radiations at three different fluences has been evaluated. For a certain dose, the devices show an apparent improvement of their electrical characteristics likely due to the N and/or H atoms diffusion inside the oxide layer. This work complete our previous studies on high energy proton irradiation, showing that the 4H-SiC MOSFET is also robust to the low energy proton radiation, when the proton implanted range is located near the MOS interface.


2010 ◽  
Vol 645-648 ◽  
pp. 435-438 ◽  
Author(s):  
Franziska Christine Beyer ◽  
Carl G. Hemmingsson ◽  
Henrik Pedersen ◽  
Anne Henry ◽  
Junichi Isoya ◽  
...  

After low-energy electron irradiation of epitaxial n-type 4H-SiC, the DLTS peak amplitudes of the defects Z1/2 and EH6/7, which were already observed in as-grown layers, increased and the commonly found peaks EH1 and EH3 appeared. The bistable M-center, previously seen in high-energy proton implanted 4H-SiC, was detected. New bistable defects, the EB-centers, evolved after annealing out of the M-center, EH1 and EH3. The reconfiguration energies for one of the two EB-centers were determined to be about 0.96 eV for both transitions: from configuration I to II and from configuration II to I. Since low-energy electron irradiation (<220 keV) affects mainly the carbon atom in SiC, both the M- and EB-centers are likely to be carbon related defects.


1978 ◽  
Vol 56 (2) ◽  
pp. 226-234 ◽  
Author(s):  
A. R. Khan ◽  
M. Irfan ◽  
M. Zafar ◽  
S. Ahmad ◽  
I. Ahmad ◽  
...  

The variation of emission frequency, f, of fast protons, deuterons, tritons, He-nuclei, and slow pions, produced in 24 GeV/c proton interactions with Ag and Br nuclei of nuclear emulsion with [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text] has been investigated. For all the particles [Formula: see text] has been observed to increase linearly with [Formula: see text], [Formula: see text], and [Formula: see text]. The variation of [Formula: see text] with [Formula: see text] has been found to be linear for slow pions, protons, and deuterons, whereas it varies as [Formula: see text] in the case of tritons and He-nuclei. The frequency of slow pions has been determined to be ~(0.33 ± 0.04), which is ~ 7.8% of the mean number of grey tracks. Further, the emission of low energy pions has been observed to be more frequent in relatively heavier stars.


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