Baryon masses at nonzero isospin/kaon density
We present a lattice QCD calculation of the ground-state energy shifts of various baryons in a medium of pions or kaons at a single value of the quark mass corresponding to a pion mass of m[subscript π] ~ 390 MeV and a kaon mass of m[subscript K] ~ 540 MeV, and in a spatial volume V ~ (4 fm)[supe...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/84707 https://orcid.org/0000-0002-0400-8363 |
| _version_ | 1811089474224914432 |
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| author | Detmold, William Nicholson, Amy N. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Detmold, William Nicholson, Amy N. |
| author_sort | Detmold, William |
| collection | MIT |
| description | We present a lattice QCD calculation of the ground-state energy shifts of various baryons in a medium of pions or kaons at a single value of the quark mass corresponding to a pion mass of m[subscript π] ~ 390 MeV and a kaon mass of m[subscript K] ~ 540 MeV, and in a spatial volume V ~ (4 fm)[superscript 3]. All systems are created using a canonical formalism in which quark propagators are contracted into correlation functions of fixed isospin/kaon density. We study four different systems, Σ[superscript +](π[superscript +])n, Ξ[superscript 0](π[superscript +])[superscript n], p(K[superscript +])[superscript n], and n(K[superscript +])[superscript n], for up to n = 11 mesons. From the ground-state energy shifts we extract two- and three-body scattering parameters, as well as linear combinations of low-energy constants appearing in tree-level chiral perturbation theory. |
| first_indexed | 2024-09-23T14:19:45Z |
| format | Article |
| id | mit-1721.1/84707 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:19:45Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/847072022-09-29T08:43:09Z Baryon masses at nonzero isospin/kaon density Detmold, William Nicholson, Amy N. Massachusetts Institute of Technology. Department of Physics Detmold, William We present a lattice QCD calculation of the ground-state energy shifts of various baryons in a medium of pions or kaons at a single value of the quark mass corresponding to a pion mass of m[subscript π] ~ 390 MeV and a kaon mass of m[subscript K] ~ 540 MeV, and in a spatial volume V ~ (4 fm)[superscript 3]. All systems are created using a canonical formalism in which quark propagators are contracted into correlation functions of fixed isospin/kaon density. We study four different systems, Σ[superscript +](π[superscript +])n, Ξ[superscript 0](π[superscript +])[superscript n], p(K[superscript +])[superscript n], and n(K[superscript +])[superscript n], for up to n = 11 mesons. From the ground-state energy shifts we extract two- and three-body scattering parameters, as well as linear combinations of low-energy constants appearing in tree-level chiral perturbation theory. United States. Dept. of Energy. Outstanding Junior Investigator Program (Award DE-SC000-1784) United States. Dept. of Energy (Early Career Award DE-SC0010495) 2014-02-07T20:36:21Z 2014-02-07T20:36:21Z 2013-10 2013-09 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/84707 Detmold, William, and Amy N. Nicholson. “Baryon masses at nonzero isospin/kaon density.” Physical Review D 88, no. 7 (October 2013). © 2013 American Physical Society https://orcid.org/0000-0002-0400-8363 en_US http://dx.doi.org/10.1103/PhysRevD.88.074501 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Detmold, William Nicholson, Amy N. Baryon masses at nonzero isospin/kaon density |
| title | Baryon masses at nonzero isospin/kaon density |
| title_full | Baryon masses at nonzero isospin/kaon density |
| title_fullStr | Baryon masses at nonzero isospin/kaon density |
| title_full_unstemmed | Baryon masses at nonzero isospin/kaon density |
| title_short | Baryon masses at nonzero isospin/kaon density |
| title_sort | baryon masses at nonzero isospin kaon density |
| url | http://hdl.handle.net/1721.1/84707 https://orcid.org/0000-0002-0400-8363 |
| work_keys_str_mv | AT detmoldwilliam baryonmassesatnonzeroisospinkaondensity AT nicholsonamyn baryonmassesatnonzeroisospinkaondensity |