B. Mecking

activity

20002008

S = + 1

Baryon in Exclusive Photoproduction from the Deuteron

396 citations · 2.2k across the 29 of their papers we have counts for

collaborators

29 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…

nucl-ex2008★ 38 cited

Electroproduction of p π^{+} π^{-} off protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with CLAS

G. V. Fedotov, V. I. Mokeev, V. D. Burkert +5

This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process $e p \to e^{'} p π^{+} π^{-}$ . The data were collec…

hep-ex2008★ 66 cited

Measurement of unpolarized semi-inclusive pi+ electroproduction off the proton

CLAS Collaboration, M. Osipenko, M. Ripani +3

Semi-inclusive pi+ electroproduction on protons has been measured with the CLAS detector at Jefferson Lab. The measurement was performed on a liquid-hydrogen target using a 5.75 Ge…

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-ex2007★ 7 cited

Ratios of 15N/12C and 4He/12C inclusive electroproduction cross sections in the nucleon resonance region

CLAS Collaboration, P. E. Bosted, R. Fersch

The (W,Q2)-dependence of the ratio of inclusive electron scattering cross sections for 15N/12C was determined in the kinematic range 0.8<W<2 GeV and 0.2<Q2<1 GeV2 using 2.285 GeV e…

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…

nucl-ex2007★ 28 cited

First measurement of coherent $ϕ$ -meson photoproduction on deuteron at low energies

CLAS collaboration, T. Mibe, H. Gao +4

The cross section and decay angular distributions for the coherent ϕmeson photoproduction on the deuteron have been measured for the first time up to a squared four-momentum transf…

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…

nucl-ex2007★ 42 cited

Experimental study of exclusive $^{2}$ H $(e, e^{'} p) n$ reaction mechanisms at high $Q^{2}$

K. S. Egiyan, the CLAS Collaboration

The reaction $^{2}$ H $(e, e^{'} p) n$ has been studied with full kinematic coverage for photon virtuality $1.75 < Q^{2} < 5.5$ GeV $^{2}$ . Comparisons of experimental data with theory indicat…

hep-ex2006★ 66 cited

Separated Structure Functions for the Exclusive Electroproduction of $K^{+} Λ$ and $K^{+} Σ^{0}$ Final States

P. Ambrozewicz, D. S. Carman, R. J. Feuerbach +4

We report measurements of the exclusive electroproduction of $K^{+} Λ$ and $K^{+} Σ^{0}$ final states from a proton target using the CLAS detector at the Thomas Jefferson National Accelera…

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…

nucl-ex2006★ 130 cited

Measurement of the $x$ - and $Q^{2}$ -Dependence of the Asymmetry $A_{1}$ on the Nucleon

K. V. Dharmawardane, S. E. Kuhn, P. Bosted +1

We report results for the virtual photon asymmetry $A_{1}$ on the nucleon from new Jefferson Lab measurements. The experiment, which used the CEBAF Large Acceptance Spectrometer and…

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-ex2006★ 94 cited

Search for the $Θ^{+}$ pentaquark in the reaction $γ d \to p K^{-} K^{+} n$

B. McKinnon, K. Hicks

A search for the \thp in the reaction $γ d \to p K^{-} K^{+} n$ was completed using the CLAS detector at Jefferson Lab. A study of the same reaction, published earlier, reported the observ…

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…

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…

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…

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…

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

Electroproduction of p π^{+} π^{-} off protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with CLAS

Measurement of unpolarized semi-inclusive pi+ electroproduction off the proton

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

Ratios of 15N/12C and 4He/12C inclusive electroproduction cross sections in the nucleon resonance region

Cross sections and beam asymmetries for $\vev{e}p \to enπ^+$ in the nucleon resonance region for 1.7≤Q2≤4.5(GeV)2

First measurement of coherent ϕ-meson photoproduction on deuteron at low energies

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

Experimental study of exclusive 2H(e,e′p)n reaction mechanisms at high Q2

Separated Structure Functions for the Exclusive Electroproduction of K+Λ and K+Σ0 Final States

Search for the Θ+ pentaquark in the reactions γp→Kˉ0K+n and γp→Kˉ0K0p