Pontecorvo reactions in antiproton annihilation at rest in deuterium to {pi}{sup 0}n, {pi}{sup 0}{Delta}{sup 0}, {eta}n, and {eta}{Delta}{sup 0}
Journal Article
·
· Physical Review, D
OSTI ID:467799
- Faculty of Engineering, Fukui University, Fukui, Fukui, 910 (Japan)
- KEK, National Laboratory for High Energy Physics, Tsukuba, 305 (Japan)
- Faculty of Science, Kyoto Sangyo University, Kita, Kyoto, 603 (Japan)
- Department of Physics, Osaka University, Toyonaka, Osaka, 560 (Japan)
- Department of Physics, Tokyo Metropolitan University, Hachioji, 192-03 (Japan)
Using modularized NaI(Tl) detectors, we carried out a high statistics measurement of inclusive {gamma}-ray, {pi}{sup 0}, and {eta} spectra, and determined the branching ratios or upper limits of Pontecorvo reactions {bar p}d{r_arrow}{pi}{sup 0}n, {pi}{sup 0}{Delta}{sup 0}, {eta}n, and {eta}{Delta}{sup 0} from the corresponding monochromatic peaks in them. The obtained branching ratios are B({bar p}d{r_arrow}{pi}{sup 0}n)=(1.03{plus_minus}0.41){times}10{sup {minus}5}, B({bar p}d{r_arrow}{pi}{sup 0}{Delta}{sup 0})=(4.67{plus_minus}1.66){times}10{sup {minus}5}, B({bar p}d{r_arrow}{eta}n){lt}8.94{times}10{sup {minus}6} (95{percent} C.L.), and B({bar p}d{r_arrow}{eta}{Delta}{sup 0}){lt}6.49{times}10{sup {minus}5} (95{percent} C.L.). {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 467799
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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