Deduction of Λ(1405) pole position from CLAS data
We have studied the photoproduction of Λ(1405) from the CLAS Collaboration with a chiral dynamics model. The reaction γ+p→K+(π∑)0 was conducted for the wide range of photon energies 1.95
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| creator | Mar, Thae Thae Mon, San San Myint, Khin Swe Akaishi, Yoshinori |
| description | We have studied the photoproduction of Λ(1405) from the CLAS Collaboration with a chiral dynamics model. The reaction γ+p→K+(π∑)0 was conducted for the wide range of photon energies 1.95 |
| doi_str_mv | 10.1063/5.0037112 |
| format | Conference Proceeding |
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The reaction γ+p→K+(π∑)0 was conducted for the wide range of photon energies 1.95 <W< 2.85GeV at Jefferson Lab. We have analyzed the invariant mass spectra for this reaction at different energies by employing K¯N−π∑ coupled channel T- matrices, namely Tπ∑←K¯N(T21) and Tπ∑←π∑(T22) derived from a chiral-based interaction. We then varied the coupling strength of chiral interaction in order to find χ2 minimum for the calculated invariant mass spectra of CLAS data. The mass M and decay width Γ of the Λ(1405) resonance is deduced to be 1401.8−2.3+2.3MeV/c2 and 65.4−5.0+5.0MeV respectively, from the interaction parameter set which provides the minimum χ2 fit spectrum.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/5.0037112</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Chi-square test ; Chiral dynamics ; Deduction ; Interaction parameters ; Invariants ; Mass spectra ; Mass spectroscopy ; Photoproduction ; Statistical tests</subject><ispartof>AIP conference proceedings, 2021, Vol.2319 (1)</ispartof><rights>Author(s)</rights><rights>2021 Author(s). 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The reaction γ+p→K+(π∑)0 was conducted for the wide range of photon energies 1.95 <W< 2.85GeV at Jefferson Lab. We have analyzed the invariant mass spectra for this reaction at different energies by employing K¯N−π∑ coupled channel T- matrices, namely Tπ∑←K¯N(T21) and Tπ∑←π∑(T22) derived from a chiral-based interaction. We then varied the coupling strength of chiral interaction in order to find χ2 minimum for the calculated invariant mass spectra of CLAS data. The mass M and decay width Γ of the Λ(1405) resonance is deduced to be 1401.8−2.3+2.3MeV/c2 and 65.4−5.0+5.0MeV respectively, from the interaction parameter set which provides the minimum χ2 fit spectrum.</description><subject>Chi-square test</subject><subject>Chiral dynamics</subject><subject>Deduction</subject><subject>Interaction parameters</subject><subject>Invariants</subject><subject>Mass spectra</subject><subject>Mass spectroscopy</subject><subject>Photoproduction</subject><subject>Statistical tests</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2021</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kM1Kw0AUhQdRMFYXvkHAjQqp985_lqX1DwouVHA3JJM7kNJ2YpIKPovv5DOZ2oI7N-cszse5l8PYOcIYQYsbNQYQBpEfsASVwsxo1IcsAchlxqV4O2YnXbcA4LkxNmF8RtXG93VcpzGk31-XKEFdpU1c0iBd_ZuENq7S6XzynFZFX5yyo1AsOzrb-4i93t2-TB-y-dP943Qyzxq0os88R2uoVMJTaa00JFEZJK8gFxVZTyY33mhe6RByybmovBcBSyLyutRGjNjFrrdp4_uGut4t4qZdDycdl1ZryAFwoK53VOfrvti-65q2XhXtp0Nw202ccvtN_oM_YvsHuqYK4ge5fF_2</recordid><startdate>20210205</startdate><enddate>20210205</enddate><creator>Mar, Thae Thae</creator><creator>Mon, San San</creator><creator>Myint, Khin Swe</creator><creator>Akaishi, Yoshinori</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20210205</creationdate><title>Deduction of Λ(1405) pole position from CLAS data</title><author>Mar, Thae Thae ; Mon, San San ; Myint, Khin Swe ; Akaishi, Yoshinori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p183t-c2187eb53ceb8847e41571ec5093de8ce797c762d6ff94223dcc3f1beeec6b673</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Chi-square test</topic><topic>Chiral dynamics</topic><topic>Deduction</topic><topic>Interaction parameters</topic><topic>Invariants</topic><topic>Mass spectra</topic><topic>Mass spectroscopy</topic><topic>Photoproduction</topic><topic>Statistical tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mar, Thae Thae</creatorcontrib><creatorcontrib>Mon, San San</creatorcontrib><creatorcontrib>Myint, Khin Swe</creatorcontrib><creatorcontrib>Akaishi, Yoshinori</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mar, Thae Thae</au><au>Mon, San San</au><au>Myint, Khin Swe</au><au>Akaishi, Yoshinori</au><au>Shukor, Roslan Abdul</au><au>Tanaka, Kazuhiro</au><au>Ratnavelu, Kuru</au><au>Yokoyama, Jun’ichi</au><au>Tou, Teck-Yong</au><au>Choi, Hyoung Joon</au><au>Chin, Jia Hou</au><au>Matsumoto, Ryoji</au><au>Chin, Oi-Hoong</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Deduction of Λ(1405) pole position from CLAS data</atitle><btitle>AIP conference proceedings</btitle><date>2021-02-05</date><risdate>2021</risdate><volume>2319</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>We have studied the photoproduction of Λ(1405) from the CLAS Collaboration with a chiral dynamics model. The reaction γ+p→K+(π∑)0 was conducted for the wide range of photon energies 1.95 <W< 2.85GeV at Jefferson Lab. We have analyzed the invariant mass spectra for this reaction at different energies by employing K¯N−π∑ coupled channel T- matrices, namely Tπ∑←K¯N(T21) and Tπ∑←π∑(T22) derived from a chiral-based interaction. We then varied the coupling strength of chiral interaction in order to find χ2 minimum for the calculated invariant mass spectra of CLAS data. The mass M and decay width Γ of the Λ(1405) resonance is deduced to be 1401.8−2.3+2.3MeV/c2 and 65.4−5.0+5.0MeV respectively, from the interaction parameter set which provides the minimum χ2 fit spectrum.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0037112</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2021, Vol.2319 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0037112 |
| source | AIP Journals Complete |
| subjects | Chi-square test Chiral dynamics Deduction Interaction parameters Invariants Mass spectra Mass spectroscopy Photoproduction Statistical tests |
| title | Deduction of Λ(1405) pole position from CLAS data |
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