L. Morand

activity

20002008

S = + 1

Baryon in Exclusive Photoproduction from the Deuteron

396 citations · 2.3k across the 27 of their papers we have counts for

collaborators

27 papers

nucl-ex2008★ 76 cited

Electroexcitation of the Roper resonance for 1.7 < Q2 < 4.5 GeV2 in ep -> enpi+

I. G. Aznauryan, V. D. Burkert, W. Kim +2

The helicity amplitudes of the electroexcitation of the Roper resonance are extracted for 1.7 < Q2 < 4.5 GeV2 from recent high precision JLab-CLAS cross section and longitudinally…

nucl-ex2008★ 54 cited

Moments of the Spin Structure Functions g_1^p and g_1^d for 0.05 < Q^2 < 3.0 GeV^2

Y. Prok, P. Bosted, V. D. Burkert +7

The spin structure functions g_1 for the proton and the deuteron have been measured over a wide kinematic range in x and Q2 using 1.6 and 5.7 GeV longitudinally polarized electrons…

nucl-ex2007★ 63 cited

Cross sections and beam asymmetries for $\vev{e}p \to enπ^+$ in the nucleon resonance region for $1.7 \leq Q^{2} \leq 4.5 (G e V)^{2}$

K. Park, V. D. Burkert, W. Kim +1

The exclusive electroproduction process $e p \to e^{'} n π^{+}$ was measured in the range of the photon virtuality $Q^{2} = 1.7 - 4.5 Ge V^{2}$ , and the invariant mass range…

hep-ex2006★ 56 cited

Search for the $Θ^{+}$ pentaquark in the reactions $γ p \to K ˉ^{0} K^{+} n$ and $γ p \to K ˉ^{0} K^{0} p$

R. De Vita, M. Battaglieri, V. Kubarovsky +9

The exclusive reactions $γ p \to K ˉ^{0} K^{+} n$ and $γ p \to K ˉ^{0} K^{0} p$ have been studied in the photon energy range 1.6--3.8 GeV, searching for evidence of the exotic baryon $…

hep-ex2006★ 104 cited

Measurement of the N to Delta(1232) Transition at High Momentum Transfer by pi0 Electroproduction

M. Ungaro, P. Stoler, I. Aznauryan +4

We report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to explore the evolution from soft non-perturbative physics to hard processes via the Q2 d…

hep-ex2006★ 13 cited

Search for $Θ^{++}$ Pentaquarks in the Exclusive Reaction $γ p \to K^{+} K^{-} p$

V. Kubarovsky, M. Battaglieri, R. De Vita +6

The reaction $γ p \to p K^{+} K^{-}$ was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a $Θ^{++}$ pentaquark, a…

hep-ex2006★ 38 cited

Search for the Theta+ pentaquark in the gamma d -> Lambda n K+ reaction measured with CLAS

Clas Collaboration, S. Niccolai

For the first time, the reaction gamma d -> Lambda n K+ has been analyzed in order to search for the exotic pentaquark baryon Theta+(1540). The data were taken at Jefferson Lab, us…

hep-ex2005★ 78 cited

Search for $Θ^{+} (1540)$ pentaquark in high statistics measurement of $γ p \to K ˉ^{0} K^{+} n$ at CLAS

M. Battaglieri, R. De Vita, V. Kubarovsky +5

The exclusive reaction $γ p \to K ˉ^{0} K^{+} n$ was studied in the photon energy range between 1.6-3.8 GeV searching for evidence of the exotic baryon $Θ^{+} (1540) \to n K^{+}$ . The decay…

nucl-ex2005★ 38 cited

Electron Scattering From High-Momentum Neutrons in Deuterium

A. V. Klimenko, S. E. Kuhn

We report results from an experiment measuring the semi-inclusive reaction $d (e, e^{'} p_{s})$ where the proton $p_{s}$ is moving at a large angle relative to the momentum transfer. If we a…

hep-ex2005★ 48 cited

Deeply virtual and exclusive electroproduction of omega mesons

CLAS collaboration, L. Morand

The exclusive omega electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q2…

nucl-ex2004★ 22 cited

Complete measurement of three-body photodisintegration of 3He for photon energies between 0.35 and 1.55 GeV

CLAS Collaboration, S. Niccolai, G. Audit +3

The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large accep…

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…

hep-ex2003★ 396 cited

Observation of an Exotic $S = + 1$ Baryon in Exclusive Photoproduction from the Deuteron

S. Stepanyan, The CLAS collaboration

In an exclusive measurement of the reaction $γ d \to K^{+} K^{-} p n$ , a narrow peak that can be attributed to an exotic baryon with strangeness $S = + 1$ is seen in the $K^{+} n$ invariant m…

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…