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Calculation of resonance states of positronic lithium atom
Feshbach resonance states of positronic lithium atom are precisely calculated with a Gaussian expansion method. By adopting a Lorentzian formula for density of state, resonance energies and widths are systematically determined from series of energy levels calculated by a real scaling method. We iden...
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| Published in: | The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2016-09, Vol.70 (9), p.1-9, Article 190 |
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| Language: | English |
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| container_end_page | 9 |
| container_issue | 9 |
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| container_title | The European physical journal. D, Atomic, molecular, and optical physics |
| container_volume | 70 |
| creator | Yamashita, Takuma Kino, Yasushi |
| description | Feshbach resonance states of positronic lithium atom are precisely calculated with a Gaussian expansion method. By adopting a Lorentzian formula for density of state, resonance energies and widths are systematically determined from series of energy levels calculated by a real scaling method. We identify Feshbach resonance states between Li (2
p
) + e
+
and Li (4
s
) + e
+
thresholds and the results are in good agreement with previous works with the real scaling method and complex scaling method. Our results of a dipole series of resonances supported by ion-dipole interaction of Li
+
-Ps (
n
= 2), whose existence has been pointed out by previous works, show a good agreement with the latest calculation with a complex scaling calculation. We point out that an accuracy of the model potential for the electron and positron from the atomic ion is significant for the positronic atom formation process.
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| doi_str_mv | 10.1140/epjd/e2016-70152-3 |
| format | article |
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p
) + e
+
and Li (4
s
) + e
+
thresholds and the results are in good agreement with previous works with the real scaling method and complex scaling method. Our results of a dipole series of resonances supported by ion-dipole interaction of Li
+
-Ps (
n
= 2), whose existence has been pointed out by previous works, show a good agreement with the latest calculation with a complex scaling calculation. We point out that an accuracy of the model potential for the electron and positron from the atomic ion is significant for the positronic atom formation process.
Graphical abstract</description><identifier>ISSN: 1434-6060</identifier><identifier>EISSN: 1434-6079</identifier><identifier>DOI: 10.1140/epjd/e2016-70152-3</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Applications of Nonlinear Dynamics and Chaos Theory ; Atomic ; Dipoles ; Lithium ; Model accuracy ; Molecular ; Optical and Plasma Physics ; Physical Chemistry ; Physics ; Physics and Astronomy ; Quantum Information Technology ; Quantum Physics ; Regular Article ; Scaling ; Spectroscopy/Spectrometry ; Spintronics ; Topical Issue: Advances in Positron and Electron Scattering</subject><ispartof>The European physical journal. D, Atomic, molecular, and optical physics, 2016-09, Vol.70 (9), p.1-9, Article 190</ispartof><rights>EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2016</rights><rights>Copyright Springer Science & Business Media 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-a6492963afbc9f309bdc59dfeba6c4c509e1583ea2e1066615d2e914e8fe6f753</citedby><cites>FETCH-LOGICAL-c385t-a6492963afbc9f309bdc59dfeba6c4c509e1583ea2e1066615d2e914e8fe6f753</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Yamashita, Takuma</creatorcontrib><creatorcontrib>Kino, Yasushi</creatorcontrib><title>Calculation of resonance states of positronic lithium atom</title><title>The European physical journal. D, Atomic, molecular, and optical physics</title><addtitle>Eur. Phys. J. D</addtitle><description>Feshbach resonance states of positronic lithium atom are precisely calculated with a Gaussian expansion method. By adopting a Lorentzian formula for density of state, resonance energies and widths are systematically determined from series of energy levels calculated by a real scaling method. We identify Feshbach resonance states between Li (2
p
) + e
+
and Li (4
s
) + e
+
thresholds and the results are in good agreement with previous works with the real scaling method and complex scaling method. Our results of a dipole series of resonances supported by ion-dipole interaction of Li
+
-Ps (
n
= 2), whose existence has been pointed out by previous works, show a good agreement with the latest calculation with a complex scaling calculation. We point out that an accuracy of the model potential for the electron and positron from the atomic ion is significant for the positronic atom formation process.
Graphical abstract</description><subject>Applications of Nonlinear Dynamics and Chaos Theory</subject><subject>Atomic</subject><subject>Dipoles</subject><subject>Lithium</subject><subject>Model accuracy</subject><subject>Molecular</subject><subject>Optical and Plasma Physics</subject><subject>Physical Chemistry</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Information Technology</subject><subject>Quantum Physics</subject><subject>Regular Article</subject><subject>Scaling</subject><subject>Spectroscopy/Spectrometry</subject><subject>Spintronics</subject><subject>Topical Issue: Advances in Positron and Electron Scattering</subject><issn>1434-6060</issn><issn>1434-6079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp1kE1Lw0AQhhdRsFb_gKeA59jZz2a9SdEqFLzoedlsZjUlzcbdzcF_b9qKePE0w_C878BDyDWFW0oFLHDYNgtkQFW5BCpZyU_IjAouSgVLffq7KzgnFyltAYBJoWbkbmU7N3Y2t6Evgi8iptDb3mGRss2Y9rchpDbH0Leu6Nr80Y67wuawuyRn3nYJr37mnLw9PryunsrNy_p5db8pHa9kLq0SmmnFra-d9hx03TipG4-1VU44CRqprDhahhSUUlQ2DDUVWHlUfin5nNwce4cYPkdM2WzDGPvppaFVBZUCDWKi2JFyMaQU0ZshtjsbvwwFs3dk9o7MwZE5ODJ8CvFjKE1w_47xT_X_qW_euGvU</recordid><startdate>20160901</startdate><enddate>20160901</enddate><creator>Yamashita, Takuma</creator><creator>Kino, Yasushi</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20160901</creationdate><title>Calculation of resonance states of positronic lithium atom</title><author>Yamashita, Takuma ; Kino, Yasushi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-a6492963afbc9f309bdc59dfeba6c4c509e1583ea2e1066615d2e914e8fe6f753</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Applications of Nonlinear Dynamics and Chaos Theory</topic><topic>Atomic</topic><topic>Dipoles</topic><topic>Lithium</topic><topic>Model accuracy</topic><topic>Molecular</topic><topic>Optical and Plasma Physics</topic><topic>Physical Chemistry</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Information Technology</topic><topic>Quantum Physics</topic><topic>Regular Article</topic><topic>Scaling</topic><topic>Spectroscopy/Spectrometry</topic><topic>Spintronics</topic><topic>Topical Issue: Advances in Positron and Electron Scattering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yamashita, Takuma</creatorcontrib><creatorcontrib>Kino, Yasushi</creatorcontrib><collection>CrossRef</collection><jtitle>The European physical journal. D, Atomic, molecular, and optical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yamashita, Takuma</au><au>Kino, Yasushi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Calculation of resonance states of positronic lithium atom</atitle><jtitle>The European physical journal. D, Atomic, molecular, and optical physics</jtitle><stitle>Eur. Phys. J. D</stitle><date>2016-09-01</date><risdate>2016</risdate><volume>70</volume><issue>9</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><artnum>190</artnum><issn>1434-6060</issn><eissn>1434-6079</eissn><abstract>Feshbach resonance states of positronic lithium atom are precisely calculated with a Gaussian expansion method. By adopting a Lorentzian formula for density of state, resonance energies and widths are systematically determined from series of energy levels calculated by a real scaling method. We identify Feshbach resonance states between Li (2
p
) + e
+
and Li (4
s
) + e
+
thresholds and the results are in good agreement with previous works with the real scaling method and complex scaling method. Our results of a dipole series of resonances supported by ion-dipole interaction of Li
+
-Ps (
n
= 2), whose existence has been pointed out by previous works, show a good agreement with the latest calculation with a complex scaling calculation. We point out that an accuracy of the model potential for the electron and positron from the atomic ion is significant for the positronic atom formation process.
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| subjects | Applications of Nonlinear Dynamics and Chaos Theory Atomic Dipoles Lithium Model accuracy Molecular Optical and Plasma Physics Physical Chemistry Physics Physics and Astronomy Quantum Information Technology Quantum Physics Regular Article Scaling Spectroscopy/Spectrometry Spintronics Topical Issue: Advances in Positron and Electron Scattering |
| title | Calculation of resonance states of positronic lithium atom |
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