U. Gastaldi

activity

19962020

most citedExperimental observation of optical rotation generated in vacuum by a magnetic field

328 citations · 1.8k across the 36 of their papers we have counts for

collaborators

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22 papers · 1 filter

hep-ex2015★ 98 cited

Measurement of the exclusive $Υ$ production cross-section in $pp$ collisions at $s =$ 7 TeV and 8 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A study is presented of central exclusive production of $Υ (n S)$ states, where the $Υ (n S)$ resonances decay to the $μ^{+} μ^{-}$ final state, using $pp$ collision data recorded by the LH…

hep-ex2015★ 19 cited

Study of $B^{-} \to D K^{-} π^{+} π^{-}$ and $B^{-} \to D π^{-} π^{+} π^{-}$ decays and determination of the CKM angle $γ$

LHCb collaboration, R. Aaij, B. Adeva +716

We report a study of the suppressed $B^{-} \to D K^{-} π^{+} π^{-}$ and favored $B^{-} \to D π^{-} π^{+} π^{-}$ decays, where the neutral $D$ meson is detected through its decays to the $K^{\mp} π^{\pm}$ a…

hep-ex2015★ 137 cited

Measurement of the forward $Z$ boson production cross-section in $pp$ collisions at $s$ = 7 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A measurement of the production cross-section for $Z$ bosons that decay to muons is presented. The data were recorded by the LHCb detector during $pp$ collisions at a centre-of-mas…

hep-ex2015★ 51 cited

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +704

Measurements are presented of the $C P$ violation observables $S$ and $C$ in the decays of $B^{0}$ and $B^{0}$ mesons to the $J / ψ K_{S}^{0}$ final state. The data sample corresp…

hep-ex2015

Differential branching fraction and angular analysis of $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +699

The differential branching fraction of the rare decay $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ is measured as a function of $q^{2}$ , the square of the dimuon invariant mass. The analysis is…

hep-ex2015★ 69 cited

First observation and amplitude analysis of the $B^{-} \to D^{+} K^{-} π^{-}$ decay

LHCb collaboration, R. Aaij, B. Adeva +700

The $B^{-} \to D^{+} K^{-} π^{-}$ decay is observed in a data sample corresponding to $3.0 fb^{- 1}$ of $pp$ collision data recorded by the LHCb experiment during 2011 and 2012. I…

hep-ex2014★ 75 cited

Observation of two new $Ξ_{b}^{-}$ baryon resonances

LHCb collaboration, R. Aaij, B. Adeva +699

Two structures are observed close to the kinematic threshold in the $Ξ_{b}^{0} π^{-}$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity…

hep-ex2012★ 64 cited

Measuring the magnetic birefringence of vacuum: the PVLAS experiment

Guido Zavattini, Ugo Gastaldi, Ruggero Pengo +3

We describe the principle and the status of the PVLAS experiment which is presently running at the INFN section of Ferrara, Italy, to detect the magnetic birefringence of vacuum. T…

hep-ex2009★ 6 cited

Comparison of large-angle production of charged pions with incident protons on cylindrical long and short targets

The HARP Collaboration, M. Apollonio, A. Artamonov +71

The HARP collaboration has presented measurements of the double-differential pi+/pi- production cross-section in the range of momentum 100 MeV/c <= p 800 MeV/c and angle 0.35 rad <…

hep-ex2009★ 21 cited

Large-angle production of charged pions with incident pion beams on nuclear targets

The HARP Collaboration, M. Apollonio, A. Artamonov +71

Measurements of the double-differential pi+/- production cross-section in the range of momentum 100 MeV/c <= p <= 800 MeV/c and angle 0.35 rad <= theta <= 2.15 rad using pi+/- beam…

hep-ex2008★ 75 cited

Limits on Low Energy Photon-Photon Scattering from an Experiment on Magnetic Vacuum Birefringence

M. Bregant, G. Cantatore, S. Carusotto +12

Experimental bounds on induced vacuum magnetic birefringence can be used to improve present photon-photon scattering limits in the electronvolt energy range. Measurements with the…

hep-ex2007★ 26 cited

Large-angle production of charged pions by 3 GeV/c - 12 GeV/c protons on carbon, copper and tin targets

HARP Collaboration

A measurement of the double-differential $π^{\pm}$ production cross-section in proton--carbon, proton--copper and proton--tin collisions in the range of pion momentum $100 \MeVc \l…

hep-ex2007★ 24 cited

Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

HARP Collaboration

Measurements of the double-differential $π^{\pm}$ production cross-section in the range of momentum $100 \MeVc \leq p < 800 \MeVc$ and angle $0.35 \rad \leq θ< 2.15 \rad$ in proton…

hep-ex2007★ 32 cited

Measurement of the production of charged pions by protons on a tantalum target

HARP Collaboration, M. G. Catanesi

A measurement of the double-differential cross-section for the production of charged pions in proton--tantalum collisions emitted at large angles from the incoming beam direction i…

hep-ex2007★ 245 cited

New PVLAS results and limits on magnetically induced optical rotation and ellipticity in vacuum

E. Zavattini, G. Zavattini, G. Raiteri +12

IIn 2006 the PVLAS collaboration reported the observation of an optical rotation generated in vacuum by a magnetic field. To further check against possible instrumental artifacts s…

hep-ex2007★ 81 cited

Measurement of the production cross-section of positive pions in the collision of 8.9 GeV/c protons on beryllium

HARP Collaboration

The double-differential production cross-section of positive pions, $d^{2} σ^{π^{+}} / d p d Ω$ , measured in the HARP experiment is presented. The incident particles are 8.9 GeV/c protons…

hep-ex2006★ 2 cited

Spectroscopy of ultralight bosons by photon-boson-photon conversion-reconversion: experimental aspects

Ugo Gastaldi

A conversion-reconversion experimental scheme is proposed where photons stored in a Fabry-Perot cavity (FP) embracing a dipole conversion magnet generate two beams of ultralight bo…

hep-ex2005★ 1 cited

Signal Processing in the PVLAS Experiment

E. Zavattini, G. Zavattini, G. Ruoso +10

Nonlinear interactions of light with light are well known in quantum electronics, and it is quite common to generate harmonic or subharmonic beams from a primary laser with photoni…

hep-ex2005

PVLAS results

Ugo Gastaldi

The PVLAS experiment has built an apparatus to measure rotations and ellipticities induced by a transverse magnetic field onto linearly polarized laser light.Available results can…

hep-ex2005★ 328 cited

Experimental observation of optical rotation generated in vacuum by a magnetic field

E. Zavattini, G. Zavattini, G. Ruoso +10

We report the experimental observation of a light polarization rotation in vacuum in the presence of a transverse magnetic field. Assuming that data distribution is Gaussian, the a…

hep-ex2000★ 9 cited

Optical production and detection of dark matter candidates

F. Brandi, M. Bregant, G. Cantatore +11

The PVLAS collaboration is at present running, at the Laboratori Nazionali di Legnaro of I.N.F.N., Padova, Italy, a very sensitive optical ellipsometer capable of measuring the sma…

hep-ex1996★ 16 cited

New data on OZI rule violation in bar{p}p annihilation at rest

OBELIX Collaboration

The results of a measurement of the ratio R = Y(phi pi+ pi-) / Y(omega pi+ pi-) for antiproton annihilation at rest in a gaseous and in a liquid hydrogen target are presented. It w…

Measurement of the exclusive Υ production cross-section in pp collisions at s​=7 TeV and 8 TeV

Study of B−→DK−π+π− and B−→Dπ−π+π− decays and determination of the CKM angle γ

Measurement of the forward Z boson production cross-section in pp collisions at s​ = 7 TeV

Measurement of CP violation in B0→J/ψKS0​ decays

Differential branching fraction and angular analysis of Λb0​→Λμ+μ− decays

First observation and amplitude analysis of the B−→D+K−π− decay

Observation of two new Ξb−​ baryon resonances

Measuring the magnetic birefringence of vacuum: the PVLAS experiment

Comparison of large-angle production of charged pions with incident protons on cylindrical long and short targets

Large-angle production of charged pions with incident pion beams on nuclear targets

Limits on Low Energy Photon-Photon Scattering from an Experiment on Magnetic Vacuum Birefringence

Large-angle production of charged pions by 3 GeV/c - 12 GeV/c protons on carbon, copper and tin targets

Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

Measurement of the production of charged pions by protons on a tantalum target

New PVLAS results and limits on magnetically induced optical rotation and ellipticity in vacuum

Measurement of the production cross-section of positive pions in the collision of 8.9 GeV/c protons on beryllium

Spectroscopy of ultralight bosons by photon-boson-photon conversion-reconversion: experimental aspects

Signal Processing in the PVLAS Experiment

PVLAS results

Experimental observation of optical rotation generated in vacuum by a magnetic field

Optical production and detection of dark matter candidates

New data on OZI rule violation in bar{p}p annihilation at rest

Measurement of the exclusive $Υ$ production cross-section in $pp$ collisions at $s =$ 7 TeV and 8 TeV

Study of $B^{-} \to D K^{-} π^{+} π^{-}$ and $B^{-} \to D π^{-} π^{+} π^{-}$ decays and determination of the CKM angle $γ$

Measurement of the forward $Z$ boson production cross-section in $pp$ collisions at $s$ = 7 TeV

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays

Differential branching fraction and angular analysis of $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ decays

First observation and amplitude analysis of the $B^{-} \to D^{+} K^{-} π^{-}$ decay

Observation of two new $Ξ_{b}^{-}$ baryon resonances