M. Spraker

activity

20002022

most citedDifferential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons

285 citations · 1.7k across the 26 of their papers we have counts for

collaborators

26 papers

nucl-ex2022★ 10 cited

Proton Compton Scattering from Linearly Polarized Gamma Rays

X. Li, M. W. Ahmed, A. Banu +27

Differential cross sections for Compton scattering from the proton have been measured at scattering angles of $5 5^{\circ}$ , $9 0^{\circ}$ , and $12 5^{\circ}$ in the laboratory frame using…

hep-ph2021★ 17 cited

Dynamic Jet Charge

Zhong-Bo Kang, Xiaohui Liu, Sonny Mantry +2

We propose a modified definition of the jet charge, the "dynamic jet charge", where the constant jet momentum fraction weighting parameter, $κ$ , in the standard jet charge definiti…

nucl-ex2019★ 10 cited

Compton scattering from $^{4}$ He at the TUNL HI $γ$ S facility

X. Li, M. W. Ahmed, A. Banu +26

Differential cross sections for elastic Compton scattering from $^{4}$ He have been measured with high statistical precision at the High Intensity $γ$ -ray Source at laboratory scatter…

nucl-ex2006

In Beam Tests of Implanted Helium Targets

J. E. McDonald, R. H. France, R. A. Jarvis +22

Targets consisting of 3,4He implanted into thin aluminum foils (approximately 100, 200 or 600 ug/cm^2) were prepared using intense (a few uA) helium beams at low energy (approximat…

nucl-ex2005★ 285 cited

Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons

R. Bradford, R. A. Schumacher, J. W. C. McNabb +1

High-statistics cross sections for the reactions gamma + p --> K^+ + Lambda and gamma + p --> K^+ + Sigma^0 have been measured using CLAS at Jefferson Lab for center-of-mass energi…

nucl-ex2005★ 25 cited

Measurement of the Polarized Structure Function $σ_{L T^{'}}$ for Pion Electroproduction in the Roper Resonance Region

CLAS Collaboration, K. Joo, L. C. Smith

The polarized longitudinal-transverse structure function $σ_{L T^{'}}$ measures the interference between real and imaginary amplitudes in pion electroproduction and can be used t…

nucl-ex2004★ 31 cited

Exclusive Photoproduction of the Cascade (Xi) Hyperons

J. W. Price

We report on the first measurement of exclusive Xi-(1321) hyperon photoproduction in gamma p --> K+ K+ Xi- for 3.2 < E(gamma) < 3.9 GeV. The final state is identified by the missin…

hep-ex2004★ 49 cited

Exclusive $ρ^{0}$ meson electroproduction from hydrogen at CLAS

C. Hadjidakis

The longitudinal and transverse components of the cross section for the $e p \to e^{'} p ρ^{0}$ reaction were measured in Hall B at Jefferson Laboratory using the CLAS detector. Th…

nucl-ex2004★ 39 cited

Complete Angular Distribution Measurements of Two-Body Deuteron Photodisintegration between 0.5 and 3 GeV

M. Mirazita, The CLAS collaboration

Nearly complete angular distributions of the two-body deuteron photodisintegration differential cross section have been measured using the CLAS detector and the tagged photon beam…

nucl-ex2004★ 5 cited

Survey of A_LT' asymmetries in semi-exclusive electron scattering on He4 and C12

D. Protopopescu

Single spin azimuthal asymmetries A_LT' were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarized electrons incident on He4 and C12 targets in the CLAS detector…

hep-ex2003★ 15 cited

Tensor Polarization of the phi meson Photoproduced at High t

K. McCormick, the CLAS collaboration

As part of a measurement of the cross section of $ϕ$ meson photoproduction to high momentum transfer, we measured the polar angular decay distribution of the outgoing $K^{+}$ in the…

hep-ex2003★ 254 cited

Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton

V. Kubarovsky

The reaction $γ p \to π^{+} K^{-} K^{+} n$ was studied at Jefferson Lab using a tagged photon beam with an energy range of 3-5.47 GeV. A narrow baryon state with strangeness S=+1 and mass $M…

nucl-ex2003★ 42 cited

Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n

CLAS Collaboration, R. A. Niyazov, L. B. Weinstein

We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for `fast' nucleons (p > 250 MeV/c) peaks where two nucleons each…

nucl-ex2003★ 25 cited

Study of polarized-e polarized-p --> e-prime p pi0 in the Delta(1232) mass region using polarization asymmetries

A. Biselli

Measurements of the angular distributions of target and double spin asymmetries for the Delta(1232) in the exclusive channel (polarized-p polarized-e,e-prime p)pi0 obtained at Jeff…

nucl-ex2003★ 81 cited

Measurement of the Proton Spin Structure Function $g_{1} (x, Q^{2})$ for $Q^{2}$ from 0.15 to 1.6 GeV $^{2}$ with CLAS

R. Fatemi, A. V. Skabelin, V. D. Burkert +5

Double-polarization asymmetries for inclusive $e p$ scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally p…

hep-ex2003

Measurement of $e p \to e^{^{'}} p π^{+} π^{-}$ : experimental procedures and baryon resonance analysis

M. Ripani, V. D. Burkert, V. Mokeev +4

The cross section for the reaction $e p \to e^{'} p π^{+} π^{-}$ was measured in the resonance region for 1.4 $<$ W $<$ 2.1 GeV and 0.5 $< Q^{2} <$ 1.5 GeV $^{2}$ /c $^{2}$ using the CL…

nucl-ex2003★ 64 cited

Measurement of the Polarized Structure Function $σ_{L T^{'}}$ for $p (e, e^{'} p) π^{o}$ in the $Δ (1232)$ Resonance Region

CLAS Collaboration, K. Joo, L. C. Smith

The polarized longitudinal-transverse structure function $σ_{L T^{'}}$ has been measured in the $Δ (1232)$ resonance region at $Q^{2} = 0.40$ and 0.65 GeV $^{2}$ . Data for the $p(\vec e,…

hep-ex2003★ 134 cited

Measurement of Beam-Spin Asymmetries for Deep Inelastic $π^{+}$ Electroproduction

CLAS Collaboration, H. Avakian

We report the first evidence for a non-zero beam-spin azimuthal asymmetry in the electroproduction of positive pions in the deep-inelastic region. Data have been obtained using a p…

hep-ex2002★ 71 cited

First Measurement of Transferred Polarization in the Exclusive e p --> e' K+ Lambda Reaction

CLAS Collaboration, D. S. Carman

The first measurements of the transferred polarization for the exclusive ep --> e'K+ Lambda reaction have been performed in Hall B at the Thomas Jefferson National Accelerator Faci…

hep-ex2002★ 114 cited

Measurement of $e p \to e^{^{'}} p π^{+} π^{-}$ and baryon resonance analysis

M. Ripani

The cross section for the reaction $e p \to e^{'} p π^{+} π^{-}$ was measured in the resonance region for 1.4 $<$ W $<$ 2.1 GeV and 0.5 $< Q^{2} <$ 1.5 GeV $^{2}$ /c $^{2}$ using the CL…

hep-ex2002★ 51 cited

Photoproduction of the $ω$ meson on the proton at large momentum transfer

M. Battaglieri, M. Brunoldi, R. De Vita +4

The differential cross section, $d σ / d t$ for $ω$ meson exclusive photoproduction on the proton above the resonance region ( $2.6 < W < 2.9$ GeV) was measured up to a momentum transfer $-…

hep-ex2001★ 21 cited

First Measurement of the Double Spin Asymmetry in $e p \to e^{'} π^{+} n$ in the Resonance Region

CLAS Collaboration, R. De Vita

The double spin asymmetry in the $e p \to e^{'} π^{+} n$ reaction has been measured for the first time in the resonance region for four-momentum transfer $Q^{2} = 0.35 - 1.5$ GeV$^2…

hep-ex2001★ 205 cited

$Q^{2}$ Dependence of Quadrupole Strength in the $γ^{*} p \to Δ^{+} (1232) \to p π^{0}$ Transition

CLAS Collaboration, K. Joo, L. C. Smith

Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to qua…

hep-ex2001★ 58 cited

DRAFT: Photoproduction of the $ρ^{0}$ meson on the proton at large momentum transfer

CLAS collaboration, M. Battaglieri

The differential cross section, $d σ / d t$ , for $ρ^{0}$ meson photoproduction on the proton above the resonance region ( $2.6 < W < 2.9$ GeV) was measured up to a momentum transfer $- t = 5$ …

Proton Compton Scattering from Linearly Polarized Gamma Rays

Dynamic Jet Charge

Compton scattering from 4He at the TUNL HIγS facility

In Beam Tests of Implanted Helium Targets

Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons

Measurement of the Polarized Structure Function σLT′​ for Pion Electroproduction in the Roper Resonance Region

Exclusive Photoproduction of the Cascade (Xi) Hyperons

Exclusive ρ0 meson electroproduction from hydrogen at CLAS

Complete Angular Distribution Measurements of Two-Body Deuteron Photodisintegration between 0.5 and 3 GeV

Survey of A_LT' asymmetries in semi-exclusive electron scattering on He4 and C12

Tensor Polarization of the phi meson Photoproduced at High t

Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton

Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n

Study of polarized-e polarized-p --> e-prime p pi0 in the Delta(1232) mass region using polarization asymmetries

Measurement of the Proton Spin Structure Function g1​(x,Q2) for Q2 from 0.15 to 1.6 GeV2 with CLAS

Measurement of ep→e′pπ+π−: experimental procedures and baryon resonance analysis

Measurement of the Polarized Structure Function σLT′​ for p(e,e′p)πo in the Δ(1232) Resonance Region

Measurement of Beam-Spin Asymmetries for Deep Inelastic π+ Electroproduction

First Measurement of Transferred Polarization in the Exclusive e p --> e' K+ Lambda Reaction

Measurement of ep→e′pπ+π− and baryon resonance analysis

Photoproduction of the ω meson on the proton at large momentum transfer

First Measurement of the Double Spin Asymmetry in ep​→e′π+n in the Resonance Region

Q2 Dependence of Quadrupole Strength in the γ∗p→Δ+(1232)→pπ0 Transition

DRAFT: Photoproduction of the ρ0 meson on the proton at large momentum transfer

Compton scattering from $^{4}$ He at the TUNL HI $γ$ S facility

Measurement of the Polarized Structure Function $σ_{L T^{'}}$ for Pion Electroproduction in the Roper Resonance Region

Exclusive $ρ^{0}$ meson electroproduction from hydrogen at CLAS

Measurement of the Proton Spin Structure Function $g_{1} (x, Q^{2})$ for $Q^{2}$ from 0.15 to 1.6 GeV $^{2}$ with CLAS

Measurement of $e p \to e^{^{'}} p π^{+} π^{-}$ : experimental procedures and baryon resonance analysis

Measurement of the Polarized Structure Function $σ_{L T^{'}}$ for $p (e, e^{'} p) π^{o}$ in the $Δ (1232)$ Resonance Region

Measurement of Beam-Spin Asymmetries for Deep Inelastic $π^{+}$ Electroproduction

Measurement of $e p \to e^{^{'}} p π^{+} π^{-}$ and baryon resonance analysis

Photoproduction of the $ω$ meson on the proton at large momentum transfer

First Measurement of the Double Spin Asymmetry in $e p \to e^{'} π^{+} n$ in the Resonance Region

$Q^{2}$ Dependence of Quadrupole Strength in the $γ^{*} p \to Δ^{+} (1232) \to p π^{0}$ Transition

DRAFT: Photoproduction of the $ρ^{0}$ meson on the proton at large momentum transfer