Electroproduction of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Mesons in the Forward Direction

Bebek, C.; Brown, C. N.; Herzlinger, M.; Holmes, S.; Lichtenstein, C. A.; Pipkin, F. M.; Sisterson, L. K.; Andrews, D.; Berkelman, K.; Cassel, D. G.; Hartill, D. L.; Hicks, Nancy

doi:10.1103/physrevlett.32.21

Cited by 50 publications

(20 citation statements)

References 5 publications

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“…A better agreement with these new data could certainly be achieved by changing the values of the K and K * form factor mass scales but this would destroy the nice agreement with the other kaon electroproduction data [14][15][16][17][18][19][20], for which W > 2.1 GeV and which were presented in Ref. [7].…”

Section: Fig 1 Qmentioning

confidence: 74%

Exclusive electromagnetic production of strangeness on the nucleon: Regge analysis of recent data

2003

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In view of the numerous experimental results recently released, we provide in this letter an update on the performance of our simple Regge model for strangeness electroproduction on the nucleon. Without refitting any parameters, a decent description of all measured observables and channels is achieved. We also give predictions for spin transfer observables, recently measured at Jefferson Lab which have high sensitivity to discriminate between different theoretical approaches.

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Section: Fig 1 Qmentioning

confidence: 74%

Exclusive electromagnetic production of strangeness on the nucleon: Regge analysis of recent data

2003

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“…The SAPHIR collaboration at ELSA [1] has measured p(γ, K + )Λ and p(γ, K + )Σ 0 differential cross sections and recoil polarizations from threshold up to photon energies of 2 GeV. At present, the published p(e, e ′ K + )Λ data set is rather sparse with a few results from measurements in the seventies at Orsay [2], Cornell [3,4] and DESY [5] and recent data from Hall C at Jlab [6,7]. In the near future, however, concerted efforts at the Jlab facility will greatly improve on this situation.…”

mentioning

confidence: 99%

Constraints on background contributions fromK+Λelectroproduction

2003

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Results for response functions for kaon electroproduction on the proton are presented. A treelevel hadrodynamical model is adopted and it is shown that some of the electroproduction response functions are particularly powerful with the eye on gaining control over the parameterization of the background diagrams. The existing data set for the p(e, e ′ K + )Λ reaction appears to rule out the use of a g K + Λp coupling constant beyond the boundaries of softly broken SU(3) flavor symmetry. Also the use of soft hadronic form factors, which has been proposed as a valid alternative for a hadrodynamical description of the p(γ, K + )Λ data in the resonance region, seems to be disfavored by the magnitude of the measured p(e, e ′ K + )Λ cross sections.

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“…Thereby, the Q 2 -dependence of the electromagnetic couplings was materialized through the introduction of electromagnetic dipole form factors with a cutoff of 1.2 GeV. Both the older data [71][72][73] for dσ T + dσ L , as well as the new JLab data [70] for the separated transverse (dσ T ) and longitudinal (dσ L ) response, are reasonably well described.…”

Section: One Can Conclude That the Data Covering A Large Energy Ramentioning

confidence: 70%

“…4.3 against the available data from Cornell [71,72] and the CEA facility at Harvard [73]. From this figure, it is obvious again that the models A and C, which produced fair results in the real photon case, badly fail in describing the electron scattering results.…”

Section: Kλ Electroproductionmentioning

confidence: 82%

“…In a subsequent step, we have performed a new fit of the coupling constants, now including the available p(e, e K + )Σ 0 data from Cornell [71,72] and the CEA facility [73]. The total fit includes now 130 points for the real photon reactions γp → model calculations for the φ K -averaged virtual cross section are collected in Fig.…”

Section: Kς Electroproductionmentioning

confidence: 99%

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