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BK-parameter from Nf=2 twisted mass lattice QCD

dc.contributor.authorConstantinou, Martha G.en
dc.contributor.authorDimopoulos, Petrosen
dc.contributor.authorFrezzotti, R.en
dc.contributor.authorJansen, K.en
dc.contributor.authorGimenez, V.en
dc.contributor.authorLubicz, V.en
dc.contributor.authorMescia, F.en
dc.contributor.authorPanagopoulos, Haralambos G.en
dc.contributor.authorPapinutto, M.en
dc.contributor.authorRossi, G. C.en
dc.contributor.authorSimula, S.en
dc.contributor.authorSkouroupathis, A.en
dc.contributor.authorStylianou, Fotos S.en
dc.contributor.authorVladikas, A.en
dc.creatorConstantinou, Marthaen
dc.creatorDimopoulos, Petrosen
dc.creatorFrezzotti, R.en
dc.creatorJansen, K.en
dc.creatorGimenez, V.en
dc.creatorLubicz, V.en
dc.creatorMescia, F.en
dc.creatorPanagopoulos, Haralambos G.en
dc.creatorPapinutto, M.en
dc.creatorRossi, G. C.en
dc.creatorSimula, S.en
dc.creatorSkouroupathis, A.en
dc.creatorStylianou, Fotos S.en
dc.creatorVladikas, A.en
dc.date.accessioned2019-12-02T15:30:04Z
dc.date.available2019-12-02T15:30:04Z
dc.date.issued2011
dc.identifier.issn1550-7998
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/58638
dc.description.abstractWe present an unquenched Nf=2 lattice computation of the B K parameter which controls K0-K̄0 oscillations. A partially quenched setup is employed with two maximally twisted dynamical (sea) light Wilson quarks, and valence quarks of both the maximally twisted and the Osterwalder-Seiler variety. Suitable combinations of these two kinds of valence quarks lead to a lattice definition of the BK parameter which is both multiplicatively renormalizable and O(a) improved. Employing the nonperturbative RI-MOM scheme, in the continuum limit and at the physical value of the pion mass we get BKRGI=0.729±0.030, a number well in line with the existing quenched and unquenched determinations. © 2011 American Physical Society.en
dc.sourcePhysical Review D - Particles, Fields, Gravitation and Cosmologyen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79551511472&doi=10.1103%2fPhysRevD.83.014505&partnerID=40&md5=2c5d8e8fef3ca597e914b251c8316892
dc.titleBK-parameter from Nf=2 twisted mass lattice QCDen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1103/PhysRevD.83.014505
dc.description.volume83
dc.description.issue1
dc.author.facultyΣχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Φυσικής / Department of Physics
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :29</p>en
dc.source.abbreviationPhys Rev D Part Fields Gravit Cosmolen
dc.contributor.orcidStylianou, Fotos S. [0000-0002-2500-9883]
dc.contributor.orcidPanagopoulos, Haralambos G. [0000-0001-9355-6064]
dc.contributor.orcidDimopoulos, Petros [0000-0002-8660-714X]
dc.gnosis.orcid0000-0002-2500-9883
dc.gnosis.orcid0000-0001-9355-6064
dc.gnosis.orcid0000-0002-8660-714X


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