Coupled-channel Dπ, Dη and DsK¯ scattering from lattice QCD
A bstract We present the first lattice QCD study of coupled-channel Dπ , Dη and D s K ¯ scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of operators capable of resolving both meson and mesonmeson contributions to the spect...
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| Veröffentlicht in: | The journal of high energy physics 2016-10, Vol.2016 (10) |
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| container_title | The journal of high energy physics |
| container_volume | 2016 |
| creator | Moir, Graham Peardon, Michael Ryan, Sinéad M. Thomas, Christopher E. Wilson, David J. |
| description | A
bstract
We present the first lattice QCD study of coupled-channel
Dπ
,
Dη
and
D
s
K
¯
scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of operators capable of resolving both meson and mesonmeson contributions to the spectrum. These correlation matrices are analysed using a variational approach to extract the finite-volume energy eigenstates. Utilising Lüscher’s method and its extensions, we constrain scattering amplitudes in
S
,
P
and
D
-wave as a function of energy. By analytically continuing the scattering amplitudes to complex energies, we investigate the
S
-matrix singularities. Working at
m
π
≈ 391 MeV, we find a pole corresponding to a
J
P
= 0
+
near-threshold bound state with a large coupling to
D
π. We also find a deeply bound
J
P
= 1
−
state, and evidence for a
J
P
= 2
+
narrow resonance coupled predominantly to
D
π. Elastic
D
π scattering in the isospin-3
/
2 channel is studied and we find a weakly repulsive interaction in
S
-wave. |
| doi_str_mv | 10.1007/JHEP10(2016)011 |
| format | Article |
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bstract
We present the first lattice QCD study of coupled-channel
Dπ
,
Dη
and
D
s
K
¯
scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of operators capable of resolving both meson and mesonmeson contributions to the spectrum. These correlation matrices are analysed using a variational approach to extract the finite-volume energy eigenstates. Utilising Lüscher’s method and its extensions, we constrain scattering amplitudes in
S
,
P
and
D
-wave as a function of energy. By analytically continuing the scattering amplitudes to complex energies, we investigate the
S
-matrix singularities. Working at
m
π
≈ 391 MeV, we find a pole corresponding to a
J
P
= 0
+
near-threshold bound state with a large coupling to
D
π. We also find a deeply bound
J
P
= 1
−
state, and evidence for a
J
P
= 2
+
narrow resonance coupled predominantly to
D
π. Elastic
D
π scattering in the isospin-3
/
2 channel is studied and we find a weakly repulsive interaction in
S
-wave.</description><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP10(2016)011</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Classical and Quantum Gravitation ; Elementary Particles ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Regular Article - Theoretical Physics ; Relativity Theory ; String Theory</subject><ispartof>The journal of high energy physics, 2016-10, Vol.2016 (10)</ispartof><rights>The Author(s) 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1571-99ca5f9c94eb254798c84a7ea470164611307becf80613a3d4b24aaec8b2b7e33</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/JHEP10(2016)011$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/JHEP10(2016)011$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,27903,27904,41099,42168,51554</link.rule.ids></links><search><creatorcontrib>Moir, Graham</creatorcontrib><creatorcontrib>Peardon, Michael</creatorcontrib><creatorcontrib>Ryan, Sinéad M.</creatorcontrib><creatorcontrib>Thomas, Christopher E.</creatorcontrib><creatorcontrib>Wilson, David J.</creatorcontrib><title>Coupled-channel Dπ, Dη and DsK¯ scattering from lattice QCD</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
We present the first lattice QCD study of coupled-channel
Dπ
,
Dη
and
D
s
K
¯
scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of operators capable of resolving both meson and mesonmeson contributions to the spectrum. These correlation matrices are analysed using a variational approach to extract the finite-volume energy eigenstates. Utilising Lüscher’s method and its extensions, we constrain scattering amplitudes in
S
,
P
and
D
-wave as a function of energy. By analytically continuing the scattering amplitudes to complex energies, we investigate the
S
-matrix singularities. Working at
m
π
≈ 391 MeV, we find a pole corresponding to a
J
P
= 0
+
near-threshold bound state with a large coupling to
D
π. We also find a deeply bound
J
P
= 1
−
state, and evidence for a
J
P
= 2
+
narrow resonance coupled predominantly to
D
π. Elastic
D
π scattering in the isospin-3
/
2 channel is studied and we find a weakly repulsive interaction in
S
-wave.</description><subject>Classical and Quantum Gravitation</subject><subject>Elementary Particles</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quantum Physics</subject><subject>Regular Article - Theoretical Physics</subject><subject>Relativity Theory</subject><subject>String Theory</subject><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><recordid>eNotj7FOwzAURS0kJErLzOoRJEzfi504XpBQUihQCZBgthznBVqFpIrbvX_EyM4HwC-RqExXd7n3HMZOES4RQE_v57MnhLMIMDkHxAM2QoiMSJU2R-w4hBUAxmhgxK6ydruuqRT-3TUN1Tz_3V3w_OeLu6bkeXj4_uTBu82GumXzxquu_eB1X5ee-HOWT9hh5epAJ_85Zq83s5dsLhaPt3fZ9UJ4jDUKY7yLK-ONoiKKe4rUp8ppckr3iCpBlKAL8lUKCUonS1VEyjnyaREVmqQcM9jvhvXAQZ1dtduu6S8tgh2c7d7ZDs62d5Z_GwNL8w</recordid><startdate>20161004</startdate><enddate>20161004</enddate><creator>Moir, Graham</creator><creator>Peardon, Michael</creator><creator>Ryan, Sinéad M.</creator><creator>Thomas, Christopher E.</creator><creator>Wilson, David J.</creator><general>Springer Berlin Heidelberg</general><scope>C6C</scope></search><sort><creationdate>20161004</creationdate><title>Coupled-channel Dπ, Dη and DsK¯ scattering from lattice QCD</title><author>Moir, Graham ; Peardon, Michael ; Ryan, Sinéad M. ; Thomas, Christopher E. ; Wilson, David J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1571-99ca5f9c94eb254798c84a7ea470164611307becf80613a3d4b24aaec8b2b7e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Classical and Quantum Gravitation</topic><topic>Elementary Particles</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quantum Physics</topic><topic>Regular Article - Theoretical Physics</topic><topic>Relativity Theory</topic><topic>String Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moir, Graham</creatorcontrib><creatorcontrib>Peardon, Michael</creatorcontrib><creatorcontrib>Ryan, Sinéad M.</creatorcontrib><creatorcontrib>Thomas, Christopher E.</creatorcontrib><creatorcontrib>Wilson, David J.</creatorcontrib><collection>Springer Nature OA Free Journals</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Moir, Graham</au><au>Peardon, Michael</au><au>Ryan, Sinéad M.</au><au>Thomas, Christopher E.</au><au>Wilson, David J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Coupled-channel Dπ, Dη and DsK¯ scattering from lattice QCD</atitle><jtitle>The journal of high energy physics</jtitle><stitle>J. High Energ. Phys</stitle><date>2016-10-04</date><risdate>2016</risdate><volume>2016</volume><issue>10</issue><eissn>1029-8479</eissn><abstract>A
bstract
We present the first lattice QCD study of coupled-channel
Dπ
,
Dη
and
D
s
K
¯
scattering in isospin-1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of operators capable of resolving both meson and mesonmeson contributions to the spectrum. These correlation matrices are analysed using a variational approach to extract the finite-volume energy eigenstates. Utilising Lüscher’s method and its extensions, we constrain scattering amplitudes in
S
,
P
and
D
-wave as a function of energy. By analytically continuing the scattering amplitudes to complex energies, we investigate the
S
-matrix singularities. Working at
m
π
≈ 391 MeV, we find a pole corresponding to a
J
P
= 0
+
near-threshold bound state with a large coupling to
D
π. We also find a deeply bound
J
P
= 1
−
state, and evidence for a
J
P
= 2
+
narrow resonance coupled predominantly to
D
π. Elastic
D
π scattering in the isospin-3
/
2 channel is studied and we find a weakly repulsive interaction in
S
-wave.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/JHEP10(2016)011</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 1029-8479 |
| ispartof | The journal of high energy physics, 2016-10, Vol.2016 (10) |
| issn | 1029-8479 |
| language | eng |
| recordid | cdi_springer_journals_10_1007_JHEP10_2016_011 |
| source | DOAJ Directory of Open Access Journals; Alma/SFX Local Collection; EZB Electronic Journals Library; Springer Nature OA Free Journals |
| subjects | Classical and Quantum Gravitation Elementary Particles Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory String Theory |
| title | Coupled-channel Dπ, Dη and DsK¯ scattering from lattice QCD |
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