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researcher

A. Opper

26 papers hereh-index 242.6k citations142 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author10

Across the 11 of 26 papers where every author was matched, so the position is known.

fields
  • nucl-ex14
  • hep-ex7
  • hep-ph2
  • physics.ins-det2
  • physics.acc-ph1

identity via Semantic Scholar / OpenAlex

activity
20022019
most citedObservation of an Exotic S=+1 Baryon in Exclusive Photoproduction from the Deuteron

396 citations · 2.5k across the 26 of their papers we have counts for

collaborators
Showing 2003 · hep-exShow all

4 papers · 2 filters

hep-ex2003★ 254 cited

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

V. Kubarovsky

The reaction γp→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 γd→K+K−pn, 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 ep→e′pπ+π−: experimental procedures and baryon resonance analysis

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

The cross section for the reaction ep→e′pπ+π− was measured in the resonance region for 1.4<W<2.1 GeV and 0.5<Q2<1.5 GeV2/c2 using the CL…

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…

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