Projects per year
We present results for the decay constants of the D and Ds mesons computed in lattice QCD with Nf = 2 + 1 dynamical flavours. The simulations are based on RBC/UKQCD’s domain wall ensembles with both physical and unphysical light-quark masses and lattice spacings in the range 0.11-0.07 fm. We employ the domain wall discretisation for all valence quarks. The results in the continuum limit are fD = 208.7(2.8)stat(− 1.8 + 2.1)sysMeV and fDs=246.4(1.3)stat(−1.9+1.3)sysMeV and fDs=fD=1.667(77)stat(−43+57)sys. Using these results in a Standard Model analysis we compute the predictions |Vcd| = 0.2185(50)exp(− 37 + 35)lat and |Vcs| = 1.011(16)exp(− 9 + 4)lat for the CKM matrix elements.
|Journal||Journal of High Energy Physics|
|Publication status||Published - 1 Dec 2017|
- Heavy Quark Physics
- Lattice QCD
- Lattice Quantum Field Theory
- Quark Masses and SM Parameters
FingerprintDive into the research topics of 'The decay constants fD and fDs in the continuum limit of Nf = 2 + 1 domain wall lattice QCD'. Together they form a unique fingerprint.
- 2 Finished
High-performance computing at the high-energy frontier: results for the LHC
1/01/15 → 31/12/19
Particle Theory at the Higgs Centre
Ball, R., Berera, A., Boyle, P., Callison-Burch, C., Del Debbio, L., Gardi, E., Kennedy, A., O'Connell, D., Zwicky, R., Berera, A., Boyle, P., Buckley, A., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., O'Connell, D., Smillie, J. & Zwicky, R.
1/10/14 → 30/09/18
Luigi Del Debbio
- School of Physics and Astronomy - Personal Chair in Theoretical High Energy Physics
Person: Academic: Research Active