SCOAP3 Repository 10 records found  Search took 0.02 seconds. 
1. Tetraquark-adequate formulation of QCD sum rules / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
We study details of QCD sum rules à la Shifman-Vainshtein-Zakharov for exotic tetraquark states. [...]
Published in Physical Review D 100 (2019) 10.1103/PhysRevD.100.014010
External links: Download fulltextpdf; Download fulltextxml
2. Are there narrow flavor-exotic tetraquarks in large-Nc QCD? / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
A salient feature shared by all tetraquark candidates observed in experiment is the absence of flavor-exotic states of the type a¯bc¯d, with four different quark flavors. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.094011 arXiv:1810.09986
Fulltext: Download fulltextPDF Download fulltextXML;
3. Erratum to: Local-duality QCD sum rules for strong isospin breaking in the decay constants of heavy–light mesons / Lucha, Wolfgang ; Melikhov, Dmitri ; Simula, Silvano
We correct Eq. (1) of the original paper, where the term..
Published in EPJC 78 (2018) 936 10.1140/epjc/s10052-018-6419-3
Fulltext: Download fulltextXML Download fulltextPDF (PDFA);
4. Revisiting nonfactorizable charm-loop effects in exclusive FCNC B -decays / Kozachuk, Anastasiia ; Melikhov, Dmitri
We revisit the calculation of nonfactorizable corrections induced by charm-quark loops in exclusive FCNC B -decays. [...]
Published in Physics letters B 786 (2018) 378-381 10.1016/j.physletb.2018.10.026
Fulltext: Download fulltextPDF Download fulltextXML Download fulltextPDF (PDFA);
5. Local-duality QCD sum rules for strong isospin breaking in the decay constants of heavy–light mesons / Lucha, Wolfgang ; Melikhov, Dmitri ; Simula, Silvano
We discuss the leptonic decay constants of heavy–light mesons by means of Borel QCD sum rules in the local-duality (LD) limit of infinitely large Borel mass parameter. [...]
Published in EPJC 78 (2018) 168 10.1140/epjc/s10052-018-5637-z
Fulltext: Download fulltextXML Download fulltextPDF (PDFA);
6. Rare FCNC radiative leptonic Bs,dγl+l decays in the standard model / Kozachuk, Anastasiia ; Melikhov, Dmitri ; Nikitin, Nikolai
We revisit rare radiative leptonic decays Bs,dγe+e and Bs,dγμ+μ in the standard model and provide the updated estimates for various differential distributions (the branching ratios, the forward-backward asymmetry, and Rμ/e, the ratio of the differential distribution for muons over electrons in the final state). [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.053007 arXiv:1712.07926
Fulltext: Download fulltextXML Download fulltextPDF;
7. Tetraquark and two-meson states at large Nc / Lucha, Wolfgang ; Melikhov, Dmitri ; Sazdjian, Hagop
Considering four-point correlation functions of color-singlet quark bilinears, we investigate, in the large- Nc limit of QCD, the subleading diagrams that involve, in the s -channel of meson–meson scattering amplitudes, two-quark–two-antiquark intermediate states. [...]
Published in EPJC 77 (2017) 866 10.1140/epjc/s10052-017-5437-x
Fulltext: Download fulltextXML Download fulltextPDF (PDFA);
8. Isospin breaking in the decay constants of heavy mesons from QCD sum rules / Lucha, Wolfgang ; Melikhov, Dmitri ; Simula, Silvano
We present a study of the strong isospin-breaking (IB) effect, due in QCD to the difference between u - and d -quark masses, in the leptonic decay constants of charmed and beauty pseudoscalar and vector mesons using the method of QCD sum rules. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.12.041
Fulltext: Download fulltextXML Download fulltextPDF Download fulltextPDF (PDFA);
9. More lepton flavor violating observables for LHCb's run 2 / Guadagnoli, Diego ; Melikhov, Dmitri ; Reboud, Méril
The RK measurement by LHCb suggests non-standard lepton non-universality (LNU) to occur in b→sℓ+ℓ− transitions, with effects in muons rather than electrons. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.07.028
Fulltext: Download fulltextXML Download fulltextPDF Download fulltextPDF (PDFA);
10. Decay constants of the charmed vector mesons D⁎ and Ds⁎ from QCD sum rules / Lucha, Wolfgang ; Melikhov, Dmitri ; Simula, Silvano
We present a sum-rule calculation of the decay constants of the charmed vector mesons D⁎ and Ds⁎ from the two-point correlator of vector currents. [...]
Published in Physics letters B 735 (2014) 12-18 10.1016/j.physletb.2014.06.007
Fulltext: Download fulltextXML Download fulltextPDF Download fulltextPDF (PDFA);

Interested in being notified about new results for this query?
Subscribe to the RSS feed.