1.
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HVP contribution of the light quarks to the muon $(g - 2)$ including isospin-breaking corrections with Twisted-Mass fermions
/ Giusti, Davide (Rome III U. ; INFN, Rome3) ; Lubicz, Vittorio (Rome III U. ; INFN, Rome3) ; Martinelli, Guido (Rome U. ; INFN, Rome) ; Sanfilippo, Francesco (INFN, Rome3) ; Simula, Silvano (INFN, Rome3) ; Tarantino, Cecilia (Rome III U. ; INFN, Rome3)
We present a preliminary lattice calculation of the leading-order electromagnetic and strong isospin-breaking corrections to the Hadronic Vacuum Polarization (HVP) contribution of the light quarks to the anomalous magnetic moment of the muon. The results are obtained in the quenched-$QED$ approximation using the $QCD$ gauge configurations generated by the European Twisted Mass Collaboration (ETMC) with $N_f = 2 + 1 + 1$ dynamical quarks, at three values of the lattice spacing varying from $0.089$ to $0.062 ~ \mbox{fm}$, at several lattice volumes and with pion masses in the range $M_\pi \simeq 220 \div 490 ~ \mbox{MeV}$..
arXiv:1810.05880.-
SISSA, 2019-05-29 - 7 p.
- Published in : PoS LATTICE2018 (2018) 140
Fulltext: PoS(LATTICE2018)140 - PDF; 1810.05880 - PDF;
In : 36th International Symposium on Lattice Field Theory, East Lansing, MI, USA, 22 - 28 Jul 2018, pp.140
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2.
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Isospin-breaking corrections to the muon magnetic anomaly in Lattice QCD
/ Giusti, Davide (Rome III U. ; INFN, Rome3) ; Lubicz, Vittorio (Rome III U. ; INFN, Rome3) ; Martinelli, Guido (Rome U.) ; Sanfilippo, Francesco (INFN, Rome3) ; Simula, Silvano (INFN, Rome3)
In this contribution we present a lattice calculation of the leading-order electromagnetic and strong isospin-breaking (IB) corrections to the quark-connected hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon. The results are obtained adopting the RM123 approach in the quenched-QED approximation and using the QCD gauge configurations generated by the ETM Collaboration with $N_f = 2+1+1$ dynamical quarks, at three values of the lattice spacing ($a \simeq 0.062, 0.082, 0.089$ fm), at several lattice volumes and with pion masses between $\simeq 210$ and $\simeq 450$ MeV. [...]
arXiv:1909.01962.-
SISSA, 2019-09-04 - 11 p.
- Published in : PoS CD2018 (2019) 063
Fulltext: PDF; Fulltext from publisher: PDF;
In : 9th International Workshop on Chiral Dynamics, Durham, NC, USA, 17 - 21 Sep 2018, pp.063
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3.
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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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4.
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5.
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Radiative corrections to semileptonic decay rates
/ Sachrajda, C.T. (Southampton U.) ; Di Carlo, Matteo (Rome U. ; INFN, Rome) ; Martinelli, Guido (Rome U. ; INFN, Rome) ; Giusti, Davide (Rome III U. ; INFN, Rome3) ; Lubicz, Vittorio (Rome III U. ; INFN, Rome3) ; Sanfilippo, Francesco (INFN, Rome3) ; Simula, Silvano (INFN, Rome3) ; Tantalo, Nazario (Rome U., Tor Vergata ; INFN, Rome2)
We discuss the theoretical framework required for the computation of radiative corrections to semileptonic decay rates in lattice simulations, and in particular to those for $K_{\ell3}$ decays. This is an extension of the framework we have developed and successfully implemented for leptonic decays. [...]
arXiv:1910.07342.-
SISSA, 2019-10-16 - 7 p.
- Published in : PoS LATTICE2019 (2019) 162
Fulltext: PDF; Fulltext from publisher: PDF;
In : 37th International Symposium on Lattice Field Theory, Wuhan, Hubei, China, 16 - 22 Jun 2019, pp.162
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6.
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Non-perturbative renormalization in QCD+QED and its applications to weak decays
/ Di Carlo, Matteo (Rome U. ; INFN, Rome) ; Martinelli, Guido (Rome U. ; INFN, Rome) ; Giusti, Davide (Rome III U. ; INFM, Trieste) ; Lubicz, Vittorio (Rome III U. ; INFN, Rome3) ; Sachrajda, Christopher T. (Southampton U.) ; Sanfilippo, Francesco (INFN, Rome3) ; Simula, Silvano (INFN, Rome3) ; Tantalo, Nazario (Rome U., Tor Vergata ; INFN, Rome2)
We present a novel strategy to renormalize lattice operators in QCD+QED, including first order QED corrections to the non-perturbative evaluation of QCD renormalization constants. Our procedure takes systematically into account the mixed non-factorizable QCD+QED effects which were neglected in previous calculations, thus significantly reducing the systematic uncertainty on renormalization corrections. [...]
arXiv:1911.00938.-
SISSA, 2019-11-05 - 7 p.
- Published in : PoS LATTICE2019 (2019) 196
Fulltext: PDF; Fulltext from publisher: PDF;
In : 37th International Symposium on Lattice Field Theory, Wuhan, Hubei, China, 16 - 22 Jun 2019, pp.196
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8.
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Global Bayesian Analysis of the Higgs-boson Couplings
/ de Blas, Jorge (INFN, Rome) ; Ciuchini, Marco (INFN, Rome3) ; Franco, Enrico (INFN, Rome) ; Ghosh, Diptimoy (INFN, Rome) ; Mishima, Satoshi (Rome U. ; SISSA, Trieste) ; Pierini, Maurizio (CERN) ; Reina, Laura (Florida State U.) ; Silvestrini, Luca (INFN, Rome)
We present preliminary results of a bayesian fit to the Wilson coefficients of the Standard Model gauge invariant dimension-6 operators involving one or more Higgs fields, using data on electroweak precision observables and Higgs boson signal strengths..
arXiv:1410.4204.-
2016-06-02 - 7 p.
- Published in : Nucl. Part. Phys. Proc. 273-275 (2016) 834-840
Fulltext: 10.1016_j.nuclphysbps.2015.09.128 - PDF; arXiv:1410.4204 - PDF; External link: Preprint
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014, pp.834-840
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9.
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Overview and theoretical prospects for CKM matrix and CP violation from the UTfit Collaboration
/ Bona, Marcella (Queen Mary, U. of London) ; Ciuchini, Marco (INFN, Rome3) ; Derkach, Denis (Higher Sch. of Economics, Moscow) ; Di Palma, Roberto (INFN, Rome3 ; Rome III U.) ; Ferrari, Fabio (INFN, Bologna ; U. Bologna, DIFA) ; Lubicz, Vittorio (INFN, Rome3 ; Rome III U.) ; Martinelli, Guido (INFN, Rome ; Rome U.) ; Pierini, Maurizio (CERN) ; Silvestrini, Luca (INFN, Rome) ; Simula, Silvano (INFN, Rome3) et al.
Precision studies of the Cabibbo-Kobayashi-Maskawa matrix offer a very important testbed of the Standard Model (SM).In light of new inputs and measurements, in this proceeding we review the status of the Unitarity Triangle as a fundamental tool to uncover New Physics. We report the results of the latest SM global fits performed by the UTfit Collaboration including all the up-to-date experimental and theoretical inputs as for the Summer 2023 release.We also update the stringent constraints on New Physics from the generalized $|\Delta F| = 2$ effective Hamiltonian. [...]
2024 - 10 p.
- Published in : PoS WIFAI2023 (2024) 007
Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensita (WIFAI 2023), Rome, Italy, 8 - 10 Nov 2023, pp.007
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10.
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Electroweak precision constraints at present and future colliders
/ de Blas, Jorge (INFN, Rome) ; Ciuchini, Marco (INFN, Rome3) ; Franco, Enrico (INFN, Rome) ; Mishima, Satoshi (KEK, Tsukuba) ; Pierini, Maurizio (CERN) ; Reina, Laura (Florida State U.) ; Silvestrini, Luca (INFN, Rome)
We revisit the global fit to electroweak precision observables in the Standard Model and present model-independent bounds on several general new physics scenarios. We present a projection of the fit based on the expected experimental improvements at future $e^+ e^-$ colliders, and compare the constraining power of some of the different experiments that have been proposed. [...]
arXiv:1611.05354.-
SISSA, 2017-02-09 - 7 p.
- Published in : PoS ICHEP2016 (2017) 690
Fulltext: arXiv:1611.05354 - PDF; PoS(ICHEP2016)690 - PDF; External link: Preprint
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.690
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