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Cross sections and Rosenbluth separations in H-1(e, e ' K+)Lambda up to Q(2)=2.35 GeV2

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F10%3A00347096" target="_blank" >RIV/61389005:_____/10:00347096 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Cross sections and Rosenbluth separations in H-1(e, e ' K+)Lambda up to Q(2)=2.35 GeV2

  • Original language description

    The kaon electroproduction reaction H-1(e, e ' K+)Lambda was studied as a function of the virtual-photon four-momentum, Q(2), total energy, W, and momentum transfer, t, for different values of the virtual-photon polarization parameter. Data were taken atelectron beam energies ranging from 3.40 to 5.75 GeV. The center of mass cross section was determined for twenty-one kinematics corresponding to Q(2) of 1.90 and 2.35 GeV2, and the longitudinal, sigma(L), and transverse, sigma(T), cross sections were separated using the Rosenbluth technique at fixed W and t. The separated cross sections reveal a flat energy dependence at forward kaon angles not satisfactorily described by existing electroproduction models. Influence of the kaon pole on the cross sections was investigated by adopting an off-shell form factor in the Regge model, which better describes the observed energy dependence of sigma(T) and sigma(L).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BE - Theoretical physics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA202%2F08%2F0984" target="_blank" >GA202/08/0984: Study of hypernuclei</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2010

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review. C

  • ISSN

    0556-2813

  • e-ISSN

  • Volume of the periodical

    81

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

  • UT code for WoS article

    000278144800008

  • EID of the result in the Scopus database