Search Results - "Villadoro, G."

Twisted boundary conditions in lattice simulations by Sachrajda, C.T., Villadoro, G.

“…By imposing twisted boundary conditions on quark fields it is possible to access components of momenta other than integer multiples of 2π/L on a lattice with…”
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The K → π vector form factor at zero momentum transfer on the lattice by Bećirević, D., Isidori, G., Lubicz, V., Martinelli, G., Mescia, F., Simula, S., Tarantino, C., Villadoro, G.

“…We present a quenched lattice study of the form factors f + ( q 2 ) and f 0 ( q 2 ) of the matrix elements 〈 π | s ¯ γ μ u | K 〉 . We focus on the second-order…”
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The Ademollo–Gatto theorem for lattice semileptonic decays by Bećirević, D., Martinelli, G., Villadoro, G.

“…We present the results of the calculation of the Kℓ3 semileptonic form factor at zero momentum transfer, f+(0), obtained at one-loop in partially quenched…”
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Finite-volume partially-quenched two-pion amplitudes in the I=0 channel by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

“…We present a study of the finite-volume two-pion matrix elements and correlation functions of the I=0 scalar operator, in full and partially quenched QCD, at…”
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Finite-volume two-pion amplitudes in the I=0 channel by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

“…We perform a calculation in one-loop chiral perturbation theory of the two-pion matrix elements and correlation functions of an I=0 scalar operator, in finite…”
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The vector form factor at zero momentum transfer on the lattice by Bećirević, D., Isidori, G., Lubicz, V., Martinelli, G., Mescia, F., Simula, S., Tarantino, C., Villadoro, G.

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de Sitter Vacua via Consistent D Terms by Villadoro, Giovanni, Zwirner, Fabio

“…We introduce a new mechanism for producing locally stable de Sitter or Minkowski vacua, with spontaneously broken N=1 supersymmetry and no massless scalars,…”
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N = 6 gauged supergravities from generalized dimensional reduction by Villadoro, Giovanni

“…We construct new N = 6 gauged supergravities in four and five dimensions using generalized dimensional reduction. Supersymmetry is spontaneously broken to N =…”
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The K → π vector form factor at zero momentum transfer on the lattice by Bećirević, D., Isidori, G., Lubicz, V., Martinelli, G., Mescia, F., Simula, S., Tarantino, C., Villadoro, G.

“…We present the first lattice QCD estimate of the form factor f + ( 0 ) , which is the key theoretical ingredient to extract | V u s | from K ℓ 3 decays. Our…”
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SU(3)-breaking effects in kaon and hyperon semileptonic decays from lattice QCD by Bećirević, D., Guadagnoli, D., Isidori, G., Lubicz, V., Martinelli, G., Mescia, F., Papinutto, M., Simula, S., Tarantino, C., Villadoro, G.

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K+→ π+π0 decays on finite volumes and at next-to-leading order in the chiral expansion by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

“…We present the ingredients necessary for the determination of physical K→ ππ decay amplitudes for Δ I=3/2 transitions, from lattice simulations at unphysical…”
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Twisted Boundary Conditions in Lattice Simulations by Sachrajda, C. T, Villadoro, G

“…Phys.Lett.B609:73-85,2005 By imposing twisted boundary conditions on quark fields it is possible to access components of momenta other than integer multiples…”
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Chiral extrapolation of hyperon vector form factors by Guadagnoli, D, Lubicz, V, Martinelli, G, Papinutto, M, Simula, S, Villadoro, G

“…PoS LAT2005 (2005) 358 We present a new study of SU(3)-breaking corrections in hyperon vector form factors relevant for the extraction of Vus. A lattice…”
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The vector form factor at zero momentum transfer on the lattice by Bećirević, D., Isidori, G., Lubicz, V., Martinelli, G., Mescia, F., Simula, S., Tarantino, C., Villadoro, G.

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The K -> pi vector form factor at zero momentum transfer on the lattice by Becirevic, D, Isidori, G, Lubicz, V, Martinelli, G, Mescia, F, Simula, S, Tarantino, C, Villadoro, G

“…Nucl.Phys. B705 (2005) 339-362 We present a quenched lattice study of the form factors $f_+(q^2)$ and $f_0(q^2)$ of the matrix elements $<\pi | \bar{s}…”
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Finite-Volume Partially-Quenched Two-Pion Amplitudes in the I=0 Channel by Lin, C. -J. D, Martinelli, G, Pallante, E, Sachrajda, C. T, Villadoro, G

“…Phys.Lett.B581:207-217,2004 We present a study of the finite-volume two-pion matrix elements and correlation functions of the I=0 scalar operator, in full and…”
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Effects of quenching inδ I =½ kaon decays by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

“…We present the inconsistencies which arise in quenched QCD inδ I =½ non-leptonic kaon decays using chiral perturbation theory (χPT) to one loop. In particular…”
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K+ → π+π0 decays at next-to-leading order in the chiral expansion on finite volumes by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

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SU(3)-breaking effects in kaon and hyperon semileptonic decays from lattice QCD by Becirevic, D, Guadagnoli, D, Isidori, G, Lubicz, V, Martinelli, G, Mescia, F, Papinutto, M, Simula, S, Tarantino, C, Villadoro, G

“…Eur.Phys.J. A24S1 (2005) 69-73 We discuss the result of a recent quenched lattice calculation of the K -> pi vector form factor at zero-momentum transfer,…”
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K + → π +π 0 decays at next-to-leading order in the chiral expansion on finite volumes by Lin, C.-J.D., Martinelli, G., Pallante, E., Sachrajda, C.T., Villadoro, G.

“…We present the ingredients for determining K + → π +π 0 matrix elements via the combination of lattice QCD and chiral perturbation theory (χPT). By simulating…”
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