A. Bianconi
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View article: Multidimensional measurements of beam single-spin asymmetries in semi-inclusive deep-inelastic charged-kaon electroproduction off protons in the valence region
Multidimensional measurements of beam single-spin asymmetries in semi-inclusive deep-inelastic charged-kaon electroproduction off protons in the valence region Open
Measurements of beam single-spin asymmetries in semi-inclusive deep-inelastic electron scattering (SIDIS) with positively charged kaons off protons have been performed with 10.6 and 10.2 GeV incident electron beams using the CLAS12 spectro…
View article: Longitudinal Spin Transfer to $Λ$ Hyperons in Semi-Inclusive Deep Inelastic Scattering with CLAS12
Longitudinal Spin Transfer to $Λ$ Hyperons in Semi-Inclusive Deep Inelastic Scattering with CLAS12 Open
The polarization of $Λ$ hyperons is preserved in the angular distribution of their decay products. This property allows one to study the spin structure of the $Λ$. In Semi-Inclusive Deep Inelastic Scattering where a high energy lepton inte…
View article: Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector
Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector Open
We present the first threefold differential measurement for neutral-pion multiplicity ratios produced in semi-inclusive deep-inelastic electron scattering on carbon, iron, and lead nuclei normalized to deuterium from CLAS at Jefferson Lab.…
View article: Proton Transparency and Neutrino Physics: New Methods and Modeling
Proton Transparency and Neutrino Physics: New Methods and Modeling Open
Extracting accurate results from neutrino oscillation and cross section experiments requires accurate simulation of the neutrino-nucleus interaction. The rescattering of outgoing hadrons (final state interactions) by the rest of the nucleu…
View article: Photoproduction of two charged pions off protons in the resonance region
Photoproduction of two charged pions off protons in the resonance region Open
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View article: Measurement of the nucleon spin structure functions for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>0.01</mml:mn><mml:mo><</mml:mo><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo><</mml:mo><mml:mn>1</mml:mn><mml:mspace width="0.16em"/><mml:msup><mml:mrow><mml:mi>GeV</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math> using CLAS
Measurement of the nucleon spin structure functions for using CLAS Open
The spin structure functions of the proton and the deuteron were measured during the EG4 experiment at Jefferson Lab in 2006. Data were collected for longitudinally polarized electron scattering off longitudinally polarized NH3 and ND3 tar…
View article: Photoproduction of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi mathvariant="normal">Σ</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math> hyperon using linearly polarized photons with CLAS
Photoproduction of the hyperon using linearly polarized photons with CLAS Open
Measurements of the polarization observables Σ,P,T,Ox,Oz for the reaction γ⃗p→KS0Σ+ using a linearly polarized photon beam of energy 1.1 to 2.1 GeV are reported. The measured data provide information on a channel that has not been studied e…
View article: Inclusive Electron Scattering in the Resonance Region off a Hydrogen Target with CLAS12
Inclusive Electron Scattering in the Resonance Region off a Hydrogen Target with CLAS12 Open
Inclusive electron scattering cross sections off a hydrogen target at a beam energy of 10.6 GeV have been measured with data collected from the CLAS12 spectrometer at Jefferson Laboratory. These first absolute cross sections from CLAS12 co…
View article: Photoproduction of two charged pions off protons in the resonance region
Photoproduction of two charged pions off protons in the resonance region Open
Photoproduction of charged pions pairs off protons is studied within the invariant masses of the final state hadrons from 1.6 to 2.4 GeV at the Thomas Jefferson National Accelerator Facility with the CLAS detector. The data are included in…
View article: First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron
First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron Open
Measuring deeply virtual Compton scattering (DVCS) on the neutron is one of the necessary steps to understand the structure of the nucleon in terms of generalized parton distributions (GPDs). Neutron targets play a complementary role to tr…
View article: Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV$^2$ using CLAS
Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV$^2$ using CLAS Open
The spin structure functions of the proton and the deuteron were measured during the EG4 experiment at Jefferson Lab in 2006. Data were collected for longitudinally polarized electron scattering off longitudinally polarized NH$_3$ and ND$_…
View article: Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear Targets
Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear Targets Open
We measured the nuclear dependence of the di-pion azimuthal correlation function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer (CLAS) and a 5 GeV electron beam. As the nuclear-target size increases, trans…
View article: Suppression of neutral pion production in deep-inelastic scattering off nuclei with the CLAS detector
Suppression of neutral pion production in deep-inelastic scattering off nuclei with the CLAS detector Open
We present the first three-fold differential measurement for neutral pion multiplicity ratios produced in semi-inclusive deep-inelastic electron scattering on carbon, iron and lead nuclei normalized to deuterium from CLAS at Jefferson Lab.…
View article: Beam spin asymmetry measurements of deeply virtual π0 production with CLAS12
Beam spin asymmetry measurements of deeply virtual π0 production with CLAS12 Open
View article: Secondary Beams at High-Intensity Electron Accelerator Facilities
Secondary Beams at High-Intensity Electron Accelerator Facilities Open
The interaction of a high-current O(100 µA), medium energy O(10 GeV) electron beam with a thick target O(1m) produces an overwhelming shower of standard model particles in addition to hypothetical light dark matter particles. While most of…
View article: Secondary beams at high-intensity electron accelerator facilities
Secondary beams at high-intensity electron accelerator facilities Open
The interaction of a high-current $O$(100~\textmu A), medium energy $O$(10\,GeV) electron beam with a thick target $O$(1m) produces an overwhelming shower of standard matter particles in addition to hypothetical Light Dark Matter particles…
View article: Measurement of the helicity asymmetry $${\mathbb {E}}$$ for the $$\vec {\gamma }\vec {p} \rightarrow p \pi ^0$$ reaction in the resonance region
Measurement of the helicity asymmetry $${\mathbb {E}}$$ for the $$\vec {\gamma }\vec {p} \rightarrow p \pi ^0$$ reaction in the resonance region Open
View article: Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12
Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12 Open
The parameterization of the nucleon structure through Generalized Parton Distributions (GPDs) shed a new light on the nucleon internal dynamics. For its direct interpretation, Deeply Virtual Compton Scattering (DVCS) is the golden channel …
View article: Beam Spin Asymmetry Measurements of Deeply Virtual $π^0$ Production with CLAS12
Beam Spin Asymmetry Measurements of Deeply Virtual $π^0$ Production with CLAS12 Open
The new experimental measurements of beam spin asymmetry were performed for the deeply virtual exclusive $π^0$ production in a wide kinematic region with the photon virtualities $Q^2$ up to 8 GeV$^2$ and the Bjorken scaling variable $x_B$ …
View article: First Measurement of Hard Exclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">Δ</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> Electroproduction Beam-Spin Asymmetries off the Proton
First Measurement of Hard Exclusive Electroproduction Beam-Spin Asymmetries off the Proton Open
The polarized cross-section ratio σ_{LT^{'}}/σ_{0} from hard exclusive π^{-}Δ^{++} electroproduction off an unpolarized hydrogen target has been extracted based on beam-spin asymmetry measurements using a 10.2 GeV/10.6 GeV incident electro…
View article: First Measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Λ</mml:mi></mml:math> Electroproduction off Nuclei in the Current and Target Fragmentation Regions
First Measurement of Electroproduction off Nuclei in the Current and Target Fragmentation Regions Open
We report results of Λ hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the Continuous Electron Beam Accelerator Facility 5.014 GeV electron be…
View article: Optical Channeling of Low Energy Antiprotons in Thin Crystal Targets
Optical Channeling of Low Energy Antiprotons in Thin Crystal Targets Open
A relevant aspect of the interactions between charged fermions and crystal targets is coherence, which can exist at both classical and quantum levels. In the case of antiprotons crossing crystal targets, there are theories and measurements…
View article: A multidimensional study of the structure function ratio <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msub><mml:mrow><mml:mi>σ</mml:mi></mml:mrow><mml:mrow><mml:mi>L</mml:mi><mml:msup><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:msub><mml:mo stretchy="false">/</mml:mo><mml:msub><mml:mrow><mml:mi>σ</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub></mml:math> from hard exclusive π+ electro-production off protons in the GPD regime
A multidimensional study of the structure function ratio from hard exclusive π+ electro-production off protons in the GPD regime Open
View article: Alignment of the CLAS12 central hybrid tracker with a Kalman Filter
Alignment of the CLAS12 central hybrid tracker with a Kalman Filter Open
View article: Observation of Correlations between Spin and Transverse Momenta in Back-to-Back Dihadron Production at CLAS12
Observation of Correlations between Spin and Transverse Momenta in Back-to-Back Dihadron Production at CLAS12 Open
We report the first measurements of deep inelastic scattering spin-dependent azimuthal asymmetries in back-to-back dihadron electroproduction in the deep inelastic scattering process. In this reaction, two hadrons are produced in opposite …
View article: Exclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> electroproduction off the neutron in deuterium in the resonance region
Exclusive electroproduction off the neutron in deuterium in the resonance region Open
New results for the exclusive and quasifree cross sections off neutrons bound in deuterium
\nγ
\nv
\nn
\n(
\np
\n)
\n→
\np
\nπ
\n−
\n(
\np
\n)
\n are presented over a wide final state hadron angle range with a kinematic coverage of the in…
View article: Annihilation and nuclear elastic scattering of low-energy antiprotons
Annihilation and nuclear elastic scattering of low-energy antiprotons Open
We perform a fitting procedure to differential elastic scattering cross section data of antiproton at intermediate energy on three different nuclei to evaluate parameters of a six-parameters Woods-Saxon optical potential. Then, with these …
View article: Technical design report for the endcap disc DIRC <sup>*</sup>
Technical design report for the endcap disc DIRC <sup>*</sup> Open
PANDA (anti-proton annihiliation at Darmstadt) is planned to be one of the four main experiments at the future international accelerator complex FAIR (Facility for Antiproton and Ion Research) in Darmstadt, Germany. It is going to address …
View article: Alignment of the CLAS12 central hybrid tracker with a Kalman Filter
Alignment of the CLAS12 central hybrid tracker with a Kalman Filter Open
Several factors can contribute to the difficulty of aligning the sensors of tracking detectors, including a large number of modules, multiple types of detector technologies, and non-linear strip patterns on the sensors. All three of these …
View article: Comparative analysis of time-like hyperon form factors
Comparative analysis of time-like hyperon form factors Open
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