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B-physics from lattice QCD...with a twist
/ Carrasco, N. (Valencia U. ; Valencia U., IFIC) ; Dimopoulos, P. (Rome U., Tor Vergata ; INFN, Rome2) ; Frezzotti, R. (Rome U., Tor Vergata ; INFN, Rome2) ; Gimenez, V. (Valencia U. ; Valencia U., IFIC) ; Herdoiza, G. (Madrid, Autonoma U. ; Madrid, IFT) ; Lubicz, V. (Rome III U. ; INFN, Rome3) ; Martinelli, G. (SISSA, Trieste ; INFN, Rome) ; Michael, C. (Liverpool U., Dept. Math.) ; Palao, D. (INFN, Rome2) ; Rossi, G.C. (Rome U., Tor Vergata ; INFN, Rome2) et al.
We present a precise lattice QCD determination of the b-quark mass, of the B and Bs decay constants and first results for the B-meson bag parameters. For our computation we employ the so-called ratio method and our results benefit from the use of improved interpolating operators for the B-mesons. [...]
arXiv:1212.0301; IFIC-12-80; FTUAM-12-113; IFT-UAM-CSIC-12-111; RM3-TH-12-20; LTH966; CERN-PH-TH-2012-328; IFIC-12-80; FTUAM-12-113; IFT-UAM-CSIC-12-111; RM3-TH-12-20; LTH966; CERN-PH-TH-2012-328.-
2013 - 6 p.
- Published in : PoS ICHEP2012 (2012) 428
Fulltext: ICHEP2012_428 - PDF; arXiv:1212.0301 - PDF; External link: Proceedings of Science Server
In : 36th International Conference on High Energy Physics, Melbourne, Australia, 4 - 11 Jul 2012, pp.428
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B-physics from HQET in two-flavour lattice QCD
/ Bernardoni, F. (NIC, Zeuthen ; DESY, Zeuthen) ; Blossier, B. (Orsay, LPT) ; Bulava, J. (CERN) ; Della Morte, M. (Mainz U., Inst. Kernphys.) ; Fritzsch, P. (Humboldt U., Berlin) ; Garron, N. (Trinity Coll., Dublin) ; Gerardin, A. (Orsay, LPT) ; Heitger, J. (Munster U., ITP) ; von Hippel, G. (Mainz U., Inst. Kernphys.) ; Simma, H. (NIC, Zeuthen ; DESY, Zeuthen) et al.
We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf= 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. [...]
arXiv:1210.7932; DESY-12-188; CERN-PH-TH-2012-289; HU-EP-12-35; LPT-ORSAY-12-107; MS-TP-12-14; SFB-CPP-12-78; TCDMATH-12-09; CERN-PH-TH-2012-289.-
2012 - 7 p.
- Published in : PoS LATTICE2012 (2012) 273
Fulltext: Lattice 2012_273 - PDF; arXiv:1210.7932 - PDF; External link: Proceedings of Science Server
In : 30th International Symposium on Lattice Field Theory, Cairns, Australia, 24 - 29 Jun 2012, pp.273
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B-physics from Nf=2 tmQCD: the Standard Model and beyond
/ ETM Collaboration
We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixing bag parameters for the full four-fermion operator basis as well as determinations for \xi and f_{Bq}\sqrt{B_i^{(q)}} extrapolated to the continuum limit and to the physical pion mass. We used N_f = 2 twisted mass Wilson fermions at four values of the lattice spacing with pion masses ranging from 280 to 500 MeV. [...]
arXiv:1308.1851; CERN-PH-TH-2013-173; IFIC-13-47; LPT-ORSAY-13-59; LTH-982; MITP-13-045; RM3-TH-13-6; ROM2F-2013-12; CERN-PH-TH-2013-173.-
2014 - 52 p.
- Published in : JHEP 03 (2014) 016
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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Real photon emissions leptonic decays
/ Martinelli, Guido (INFN, Rome ; Rome U.) ; Di Carlo, M (INFN, Rome ; Rome U.) ; Mazzetti, F (INFN, Rome ; Rome U.) ; de Divitiis, G M (Rome U., Tor Vergata ; INFN, Rome2) ; Desiderio, A (Rome U., Tor Vergata ; INFN, Rome2) ; Frezzotti, R (Rome U., Tor Vergata ; INFN, Rome2) ; Garofalo, M (Rome U., Tor Vergata ; INFN, Rome2) ; Hansen, M (Rome U., Tor Vergata ; INFN, Rome2) ; Tantalo, N (Rome U., Tor Vergata ; INFN, Rome2) ; Giusti, D (Rome III U. ; INFN, Rome3) et al.
We present a non-perturbative calculation of the form factors which contribute to the amplitudes for the radiative decays $P\to \ell \bar \nu_\ell \gamma$, where $P$ is a pseudoscalar meson and $\ell$ is a charged lepton. Together with the non-perturbative determination of the virtual photon corrections to the processes $P\to \ell \bar \nu_\ell$, this will allow accurate predictions to be made at $O(\alpha_{em})$ for leptonic decay rates for pseudoscalar mesons ranging from the pion to the $B$ meson. [...]
SISSA, 2019 - 7 p.
- Published in : PoS LATTICE2019 (2019) 198
Fulltext: PDF;
In : 37th International Symposium on Lattice Field Theory, Wuhan, Hubei, China, 16 - 22 Jun 2019, pp.198
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Proposal for taking data with the KLOE-2 detector at the DA$\Phi$NE collider upgraded in energy
/ Babusci, D. (Frascati) ; Bini, C. (Rome U. ; INFN, Rome) ; Bossi, F. (Frascati) ; Isidori, G. (Frascati) ; Moricciani, D. (Rome U., Tor Vergata ; INFN, Rome2) ; Nguyen, F. (Rome III U. ; INFN, Rome3) ; Raimondi, P. (Frascati) ; Venanzoni, G. (Frascati) ; Alesini, D. (Frascati) ; Archilli, F. (Rome U., Tor Vergata ; INFN, Rome2) et al.
This document reviews the physics program of the KLOE-2 detector at DA$\Phi$NE upgraded in energy and provides a simple solution to run the collider above the $\phi$-peak (up to 2, possibly 2.5 GeV). [...]
arXiv:1007.5219 ; LNF-10-17-P ; LNF-10-17(P).
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2010. - 22 p.
Preprint - Full text
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