Zobrazeno 1 - 10
of 12
pro vyhledávání: '"C M Rawlins"'
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Scattering phase shifts and annihilation rates for low-energy positrons interacting with noble gas atoms are calculated ab initio using many-body theory implemented in the Gaussian-orbital code EXCITON+. Specifically, we construct the positron–atom
Externí odkaz:
https://doaj.org/article/deb461906b3d4b29ace7c02816b255bb
Publikováno v:
Hyperfine Interactions. 239
The convergent close-coupling method is used to obtain cross sections for antihydrogen formation in low-energy antiproton collisions with positronium (Ps) atoms in specified initial excited states with principal quantum numbers ni ≤ 5. The threshol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4c257287d60dddd66b0a4656670bcbc
https://doi.org/10.1007/s10751-018-1519-x
https://doi.org/10.1007/s10751-018-1519-x
Publikováno v:
The European Physical Journal D. 72
A close-coupling method is used to generate electron-loss and total scattering cross sections for the first three partial waves with both a single-centre and two-centre expansion of the scattering wave function for positron scattering on He+. The two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f1691ac99bea8293efec63d07f9ed27
https://doi.org/10.1140/epjd/e2018-80615-0
https://doi.org/10.1140/epjd/e2018-80615-0
Publikováno v:
Physical Review A. 97
We generalize the two-center convergent close-coupling approach of Kadyrov and Bray [Phys. Rev. A 66, 012710 (2002)] for positron scattering on neutral targets to charged targets, and apply it to positron scattering on the singly charged helium ion.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5121d02fa56dbf2a7da29269e89b52a
https://doi.org/10.1103/physreva.97.012707
https://doi.org/10.1103/physreva.97.012707
The two-center convergent close-coupling method is used to calculate antihydrogen $(\overline{\mathrm{H}})$ formation via positronium (Ps) scattering on antiprotons $(\overline{p})$ at near threshold energies. For excited Ps of energy $\ensuremath{\v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d1ce96ba06b9dae56648d1bafab9de5
https://cronfa.swan.ac.uk/Record/cronfa27052
https://cronfa.swan.ac.uk/Record/cronfa27052
Publikováno v:
Physical Review Letters. 114
Utilizing the two-center convergent close-coupling method, we find a several order of magnitude enhancement in the formation of antihydrogen via antiproton scattering with positronium in an excited state over the ground state. The effect is greatest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caa5855e67473272881e456b1e1ca863
https://doi.org/10.1103/physrevlett.114.183201
https://doi.org/10.1103/physrevlett.114.183201
Autor:
Jeremy S. Savage, J. Bailey, Alisher Kadyrov, Ilkhom Abdurakhmanov, Dmitry V. Fursa, Igor Bray, Andris T. Stelbovics, Mark C. Zammit, C. M. Rawlins, Alexander Bray
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 50:202001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8afedd189579288f7b4b11198960170d
https://doi.org/10.1088/1361-6455/aa8a23
https://doi.org/10.1088/1361-6455/aa8a23
Publikováno v:
Journal of Physics: Conference Series. 635:022008
Antihydrogen formation in positronium scattering on antiprotons is investigated using the two-centre convergent close-coupling method. A several orders of magnitude enhancement in the formation of antihydrogen is found when positronium is in an excit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91d239ea7c7a3dec06ee8f3f35b33481
https://doi.org/10.1088/1742-6596/635/2/022008
https://doi.org/10.1088/1742-6596/635/2/022008
Autor:
I Bray, I B Abdurakhmanov, J J Bailey, A W Bray, D V Fursa, A S Kadyrov, C M Rawlins, J S Savage, A T Stelbovics, M C Zammit
Publikováno v:
Journal of Physics B: Atomic, Molecular & Optical Physics; 10/28/2017, Vol. 50 Issue 20, p1-1, 1p
Publikováno v:
Journal of Physics: Conference Series; Jun2015, Vol. 635 Issue 2, p1-1, 1p