Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/76342
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Isolating the Λ(1405) in lattice QCD |
Other Titles: | Isolating the lambda(1405) in lattice QCD |
Author: | Menadue, B. Kamleh, W. Leinweber, D. Mahbub, M. |
Citation: | Physical Review Letters, 2012; 108(11):112001-1-112001-5 |
Publisher: | American Physical Soc |
Issue Date: | 2012 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | Benjamin J. Menadue, Waseem Kamleh, Derek B. Leinweber, and M. Selim Mahbub |
Abstract: | The odd-parity ground state of the Λ baryon lies surprisingly low in mass. At 1405 MeV, it lies lower than the odd-parity ground-state nucleon, even though it has a valence strange quark. Using the PACS-CS (2+1)-flavor full-QCD ensembles, we employ a variational analysis using source and sink smearing to isolate this elusive state. For the first time we reproduce the correct level ordering with respect to nearby scattering thresholds. With a partially quenched strange quark to produce the appropriate kaon mass, we find a low-lying, odd-parity mass trend consistent with the experimental value. |
Rights: | © 2012 American Physical Society |
DOI: | 10.1103/PhysRevLett.108.112001 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1103/physrevlett.108.112001 |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_76342.pdf | Published version | 493.06 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.