H. Crannell

activity

20002008

most citedObservation of exclusive DVCS in polarized electron beam asymmetry measurements

289 citations · 2.2k across the 30 of their papers we have counts for

collaborators

30 papers

hep-ex2008★ 1 cited

Beam Spin Asymmetries in DVCS with CLAS at 4 .8 GeV

G. Gavalian

We report measurements of the beam spin asymmetry in Deeply Virtual Compton Scattering (DVCS) at an electron beam energy of 4.8 GeV using the CLAS detector at the Thomas Jefferson…

hep-ex2008★ 36 cited

Search for the photo-excitation of exotic mesons in the pi+pi+pi- system

M. Nozar, C. Salgado, D. P. Weygand +2

A search for exotic mesons in the $π^{+} π^{+} π^{-}$ system photoproduced by the charge exchange reaction $γ p \to π^{+} π^{+} π^{-} (n)$ was carried out by the CLAS collaboration at Jef…

nucl-ex2008★ 70 cited

Light Vector Mesons in the Nuclear Medium

M. H. Wood, R. Nasseripour, D. P. Weygand +5

The light vector mesons ( $ρ$ , $ω$ , and $ϕ$ ) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the…

nucl-ex2007★ 40 cited

Cascade production in the reactions gamma p --> K+ K+ (X) and gamma p --> K^+ K^+ pi- (X)

L. Guo, D. P. Weygand, M. Battaglieri +3

Photoproduction of the cascade resonances has been investigated in the reactions $γ p \to K^{+} K^{+} (X)$ and $γ p \to K^{+} K^{+} π^{-} (X)$ . The mass split of the $Ξ$ doublet is measured to…

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…

nucl-ex2006★ 65 cited

eta-prime photoproduction on the proton for photon energies from 1.527 to 2.227 GeV

M. Dugger, J. P. Ball, P. Collins +2

Differential cross sections for the reaction gamma p -> eta-prime p have been measured with the CLAS spectrometer and a tagged photon beam with energies from 1.527 to 2.227 GeV. Th…

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★ 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-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…

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-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★ 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