Brida, Mattia Dalla - Αποτελέσματα αναζήτησης

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CERN Document Server	5 εγγραφές βρέθηκαν	Η έρευνα πήρε 0.69 δευτερόλεπτα.

Results for $\alpha_s$ from the decoupling strategy / Brida, Mattia Dalla (CERN) ; Höllwieser, Roman (Wuppertal U.) ; Knechtli, Francesco (Wuppertal U.) ; Korzec, Tomasz (Wuppertal U.) ; Nada, Alessandro (NIC, Zeuthen) ; Ramos, Alberto (Valencia U., IFIC) ; Sint, Stefan (Trinity Coll., Dublin) ; Sommer, Rainer (NIC, Zeuthen ; Humboldt U., Berlin) /ALPHA Collaboration
We present analysis details and new results for the strong coupling $\alpha_s(m_Z)$, determined by the decoupling strategy. We measure a massive gradient flow (GF) coupling defined in finite volume with Schrödinger functional (SF) boundary conditions in a theory with $N_\text{f}=3$ degenerate heavy quarks of mass $M$. [...]
arXiv:2112.09623.- 2022-05-16 - 10 p.
- Published in : PoS: LATTICE2021 (2022) , pp. 492 Fulltext: 2112.09623 - PDF; document - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.492

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Nonperturbative running of the quark mass for $N$$_{f}$ = 3 QCD from the chirally rotated Schrödinger functional / Plasencia, Isabel Campos (Cantabria Inst. of Phys.) ; Brida, Mattia Dalla (CERN) ; de Divitiis, Giulia Maria (INFN, Rome2 ; INFN, Rome) ; Lytle, Andrew (Illinois U., Urbana) ; Papinutto, Mauro (Rome U. ; INFN, Rome) ; Pirelli, Ludovica (INFN, Rome2 ; INFN, Rome) ; Vladikas, Anastassios (INFN, Rome) /ALPHA Collaboration
We study the Renormalisation Group (RG) running of the quark mass, for $N_f=3$ QCD with Wilson fermions in a mixed action setup, with standard Schrödinger Functional (SF) boundary conditions for sea quarks and chirally rotated Schrödinger Functional ($\chi$SF) boundary conditions for valence quarks. This necessitates the tuning of the boundary factor $z_f(g_0^2)$ of the $\chi$SF valence action, in order to ensure that QCD symmetries are fully recovered in the continuum. [...]
arXiv:2112.10606.- 2022-03-01 - 18 p. - Published in : Phys. Rev. D 105 (2022) 054506 Fulltext: PDF; Fulltext from publisher: PDF;

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Multi-level computation of the hadronic vacuum polarization contribution to $(g_\mu-2)$ / Giusti, Leonardo (Milan Bicocca U. ; INFN, Milan Bicocca) ; Brida, Mattia Dalla (CERN) ; Harris, Tim (Edinburgh U.) ; Pepe, Michele (INFN, Milan Bicocca)
The first results from the Fermilab E989 experiment have confirmed the long-standing tension between the experimental determination of the muon anomalous magnetic moment $a_\mu=(g_\mu-2)/2$ and its SM determination using the dispersive approach. In order to match the expected final precision from E989, the current uncertainty on ab initio determinations using lattice QCD must be decreased by a factor 5-15, a goal which is hampered by the signal-to-noise ratio problem of the electromagnetic current correlator. [...]
arXiv:2112.02647; CERN-TH-2021-203.- 2022-05-16 - 8 p. - Published in : PoS LATTICE2021 (2022) 356 Fulltext: document - PDF; 2112.02647 - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.356

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Renormalization & improvement of the tensor operator for $N_f=3$ QCD in a $\chi$SF setup / de Divitiis, Giulia Maria (Rome U., Tor Vergata ; INFN, Rome) ; Plasencia, Isabel Campos (Cantabria Inst. of Phys.) ; Brida, Mattia Dalla (CERN) ; Lytle, Andrew (Illinois U., Urbana) ; Papinutto, Mauro (Rome U. ; INFN, Rome) ; Pirelli, Ludovica (Rome U., Tor Vergata ; INFN, Rome) ; Vladikas, Anastassios (INFN, Rome ; Rome U.) /ALPHA Collaboration
We present preliminary results of the non-perturbative renormalization group (RG) running of the flavor non-singlet tensor operator. We employ the $\chi$SF scheme for $N_f=3$ QCD using ensembles generated by the ALPHA collaboration for the computation of the quark mass running. [...]
arXiv:2111.15325; CERN-TH-2021-204.- 2022-05-16 - 9 p.
- Published in : PoS: LATTICE2021 (2022) , pp. 253 Fulltext: 2111.15325 - PDF; document - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.253

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Quark mass RG-running for $N_f=3$ QCD in a $\chi$SF setup / Pirelli, Ludovica (Rome U. ; INFN, Rome) ; Plasencia, Isabel Campos (Cantabria Inst. of Phys.) ; Brida, Mattia Dalla (CERN) ; de Divitiis, Giulia Maria (Rome U. ; INFN, Rome) ; Lytle, Andrew (Illinois U., Urbana) ; Papinutto, Mauro (Rome U. ; INFN, Rome) ; Vladikas, Anastassios (INFN, Rome) /ALPHA Collaboration
We compute the nonperturbative quark mass RG-running in the range $\Lambda_{QCD}\lessapprox\mu\lessapprox M_W$ for $N_f=3$ massless QCD with a mixed action approach: sea quarks are regularised using nonperturbatively $O(a)$-improved Wilson fermions with Schrödinger functional (SF) boundary conditions, employing the configurations of 1802.05243, while valence quarks are regularised using nonperturbatively $O(a)$-improved Wilson fermions with chirally rotated Schrödinger functional boundary conditions ($\chi$SF). Our result is compatible with its SF counterpart of ref.1802.05243, confirming the universality of $\chi$SF and SF in the continuum limit. [...]
arXiv:2111.15384; CERN-TH-2021-205.- 2022-05-16 - 7 p. - Published in : PoS LATTICE2021 (2022) 364 Fulltext: document - PDF; 2111.15384 - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.364

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1	Brida, M Dalla
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