Istituto Nazionale di Fisica Nucleare, Sezione di Padova

output

19922026

most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1994Show all

37 papers · 1 filter

hep-ph1994★ 19 cited

Two-loop electroweak top corrections: are they under control?

G. Degrassi, S. Fanchiotti, F. Feruglio +2

The assumption that two-loop top corrections are well approximated by the $O (G_{m} u^{2} m t^{4})$ contribution is investigated. It is shown that in the case of the ratio neutral-to-charge…

hep-ex1994★ 21 cited

Measurement of the Bs Meson Lifetime

The CDF Collaboration

The lifetime of the $B_{s}$ meson is measured using the semileptonic decay $B_{s} \to D_{s}^{-} ℓ^{+} ν X$ . The data sample consists of 19.3 pb $^{- 1}$ of $p p ˉ$ collisions at $\sqrt{s…

hep-th1994★ 5 cited

Quantal Overlapping Resonance Criterion in the Pullen Edmonds Model

S. Graffi, V. R. Manfredi, L. Salasnich

In order to highlight the onset of chaos in the Pullen-Edmonds model a quantal analog of the resonance overlap criterion has been examined. A quite good agreement between analytica…

cond-mat1994★ 24 cited

Dynamics of Quantum Collapse in Energy Measurements

Ubaldo Tambini, Roberto Onofrio, Carlo Presilla

The influence of continuous measurements of energy with a finite accuracy is studied in various quantum systems through a restriction of the Feynman path-integrals around the measu…

cond-mat1994★ 41 cited

The Unusual Universality of Branching Interfaces in Random Media

Mehran Kardar, Attilio L. Stella, Giovanni Sartoni +1

We study the criticality of a Potts interface by introducing a {\it froth} model which, unlike its SOS Ising counterpart, incorporates bubbles of different phases. The interface is…

hep-th1994★ 11 cited

The generalized chiral Schwinger model on the two-sphere

A. Bassetto, L. Griguolo

A family of theories which interpolate between vector and chiral Schwinger models is studied on the two--sphere $S^{2}$ . The conflict between the loss of gauge invariance and globa…

cond-mat1994★ 5 cited

Real Space Renormalization Group for Langevin Dynamics in Absence of Translational Invariance

Achille Giacometti, Amos Maritan, Flavio Toigo +1

A novel exact dynamical real space renormalization group for a Langevin equation derivable from a Euclidean Gaussian action is presented. It is demonstrated rigorously that an alge…

hep-ph1994★ 14 cited

Heavy Meson Hyperfine Splitting: A Complete $1/ m_{Q}$ Calculation

N. Di Bartolomeo, F. Feruglio, R. Gatto +1

The hyperfine splittings $Δ_{D} = (m_{D_{s}^{*}} - m_{D_{s}}) - (m_{D^{*+}} - m_{D^{+}})$ and $Δ_{B} = (m_{B_{s}^{*}} - m_{B_{s}}) - (m_{B^{* 0}} - m_{B^{0}})$ are analyzed in the framework of an effective lagrangian…

hep-ex1994★ 21 cited

Polarized Bhabha Scattering and a Precision Measurement of the Electron Neutral Current Couplings

the SLD Collaboration

We present the first measurement of the left-right asymmetry in Bhabha scattering with a polarized electron beam. The effective electron vector and axial vector couplings to the Z0…

hep-ph1994★ 13 cited

Implications of a light stop for the spontaneous CP breaking at finite temperature in a nonminimal supersymmetric standard model

D. Comelli, M. Pietroni, A. Riotto

We study the implications of a light stop for the spontaneous CP breaking at finite temperature in the Higgs sector of the Minimal Supersymmetric Standard Model with a gauge single…

nucl-th1994★ 1 cited

Quantal Bifurcations in Rotational Spectra of Some Odd Atomic Nuclei

M. Ferlini, V. R. Manfredi, G. Maino

To show the existence of precursor phenomena of the transition order $t o$ chaos in atomic nuclei a simple analysis has been made, based on a recent criterion proposed by Pavli\-che…

nucl-th1994★ 2 cited

The Onset of Chaos with a Quadrupole--Quadrupole Interaction

V. R. Manfredi, L. Salasnich

The transition from order to chaos in atomic nuclei has been studied analytically and numerically using a quadrupole--quadrupole residual interaction. This interaction leads to cha…

hep-th1994★ 11 cited

k-Anomalies and Space-Time Supersymmetry in the Green-Schwarz Heterotic Superstring

A. Candiello, K. Lechner, M. Tonin

The computation of $κ$ -anomalies in the Green-Schwarz heterotic superstring sigma-model and the corresponding Wess-Zumino consistency condition constitute a powerful alternative ap…

hep-th1994★ 15 cited

Supersymmetry and SU(2)xU(1) breaking with naturally vanishing vacuum energy

A. Brignole, F. Zwirner

We show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum ener…

hep-ph1994★ 2 cited

Combined constraints on the SUSY parameter space from $Δ r$ ~and Higgs boson search

Piotr H. Chankowski

Combining the constraints coming from the ~ $M_{W}$ ~measurements and the unsuccesful search for the Higgs boson at LEP we determine in the framework of MSSM the allowed mass regions…

hep-th1994★ 5 cited

A Class of Quantum States with Classical-like Evolution

S. De Martino, S. De Siena, F. Illuminati

In the framework of Nelson stochastic quantization we derive exact non-stationary states for a class of time-dependent potentials. The wave-packets follow a classical motion with c…

cond-mat1994★ 8 cited

Diffusion Processes and Coherent States

S. De Martino, S. De Siena, F. Illuminati +1

It is shown that stochastic processes of diffusion type possess, in all generality, a structure of uncertainty relations and of coherent and squeezed states. This fact is used to o…

hep-th1994★ 6 cited

Nonperturbative 2D Gravity, Punctured Spheres and $Θ$ -Vacua in String Theories

G. Bonelli, P. A. Marchetti, M. Matone

We consider a model of 2D gravity with the coefficient of the Einstein-Hilbert action having an imaginary part $π /2$ . This is equivalent to introduce a $Θ$ -vacuum structure in the…

cond-mat1994★ 6 cited

Solid--on--Solid Model for Adsorption on Self--Affine Substrate: A Transfer Matrix Approach

G. Giugliarelli, A. L. Stella

We study a $d = 2$ discrete solid--on--solid model of complete wetting of a rough substrate with random self--affine boundary, having roughness exponent $ζ_{s}$ . A suitable transfer ma…

hep-ph1994★ 10 cited

On Spontaneous Baryogenesis and Transport Phenomena

D. Comelli, M. Pietroni, A. Riotto

The spontaneous baryogenesis mechanism by Cohen, Kaplan and Nelson is reconsidered taking into account the transport of particles inside the electroweak bubble walls. Using linear…

hep-ph1994★ 15 cited

On the Spontaneous CP Breaking at Finite Temperature in a Nonminimal Supersymmetric Standard Model

D. Comelli, M. Pietroni, A. Riotto

We study the spontaneous CP breaking at finite temperature in the Higgs sector in the Minimal Supersymmetric Standard Model with a gauge singlet. We consider the contribution of th…

hep-th1994★ 7 cited

Classical and quantum dissipation in non homogeneous environments

F. Illuminati, M. Patriarca, P. Sodano

We generalize the oscillator model of a particle interacting with a thermal reservoir by introducing arbitrary nonlinear couplings in the particle coordinates.The equilibrium posit…

hep-ex1994★ 422 cited

Evidence for Top Quark Production in $p ˉ p$ Collisions at $s = 1.8$ TeV

F. Abe

We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of $p ˉ p$ collisions at $s$ = 1.8 TeV with an integrated luminosity of 19…

hep-ph1994★ 16 cited

$τ - μ - e$ Universality in $τ$ Decays and Constraints on the Slepton Masses

P. H. Chankowski, R. Hempfling, S. Pokorski

The leptonic $τ$ decays are calculated at the 1-loop level in the Minimal Supersymmetric Standard Model. The deviation from the $τ - μ - e$ universality is studied as a function of t…

Two-loop electroweak top corrections: are they under control?

Measurement of the Bs Meson Lifetime

Quantal Overlapping Resonance Criterion in the Pullen Edmonds Model

Dynamics of Quantum Collapse in Energy Measurements

The Unusual Universality of Branching Interfaces in Random Media

The generalized chiral Schwinger model on the two-sphere

Real Space Renormalization Group for Langevin Dynamics in Absence of Translational Invariance

Heavy Meson Hyperfine Splitting: A Complete 1/mQ​ Calculation

Polarized Bhabha Scattering and a Precision Measurement of the Electron Neutral Current Couplings

Implications of a light stop for the spontaneous CP breaking at finite temperature in a nonminimal supersymmetric standard model

Quantal Bifurcations in Rotational Spectra of Some Odd Atomic Nuclei

The Onset of Chaos with a Quadrupole--Quadrupole Interaction

k-Anomalies and Space-Time Supersymmetry in the Green-Schwarz Heterotic Superstring

Supersymmetry and SU(2)xU(1) breaking with naturally vanishing vacuum energy

Combined constraints on the SUSY parameter space from Δr ~and Higgs boson search

A Class of Quantum States with Classical-like Evolution

Diffusion Processes and Coherent States

Nonperturbative 2D Gravity, Punctured Spheres and Θ-Vacua in String Theories

Solid--on--Solid Model for Adsorption on Self--Affine Substrate: A Transfer Matrix Approach

On Spontaneous Baryogenesis and Transport Phenomena

On the Spontaneous CP Breaking at Finite Temperature in a Nonminimal Supersymmetric Standard Model

Classical and quantum dissipation in non homogeneous environments

Evidence for Top Quark Production in pˉ​p Collisions at s​=1.8 TeV

τ−μ−e Universality in τ Decays and Constraints on the Slepton Masses

Heavy Meson Hyperfine Splitting: A Complete $1/ m_{Q}$ Calculation

Combined constraints on the SUSY parameter space from $Δ r$ ~and Higgs boson search

Nonperturbative 2D Gravity, Punctured Spheres and $Θ$ -Vacua in String Theories

Evidence for Top Quark Production in $p ˉ p$ Collisions at $s = 1.8$ TeV

$τ - μ - e$ Universality in $τ$ Decays and Constraints on the Slepton Masses