P. H. Hopchev

activity

19982026

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations · 22.4k across the 536 of their papers we have counts for

collaborators

Showing 2003Show all

5 papers · 1 filter

nucl-ex2003★ 30 cited

Backward electroproduction of pi0 mesons on protons in the region of nucleon resonances at four momentum transfer squared Q2 = 1.0 GeV2

G. Laveissiere

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q**2 = 1.0 GeV**2 by detecting protons in the forward direction in coincidence w…

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…

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…

Backward electroproduction of pi0 mesons on protons in the region of nucleon resonances at four momentum transfer squared Q**2 = 1.0 GeV**2

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

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

Backward electroproduction of pi0 mesons on protons in the region of nucleon resonances at four momentum transfer squared Q2 = 1.0 GeV2

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

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