Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    A relativistic study of the nucleon helicity amplitudes (1998)
    Springer
    The European physical journal 2 (1998), S. 403-409 
    Details
    ISSN: 1434-601X
    Keywords: PACS:12.39.Ki Relativistic quark model – 13.40.Gp Electromagnetic form factors – 14.20.Gk Baryon resonances with S=0
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: We perform a calculation of the relativistic transition form factors for the electromagnetic excitation of the nucleon resonances. We use as input the 3-quark wave functions obtained in a Constituent Quark Model with three-body forces in the hypercentral approach. With respect to the non relativistic calculations a significant contribution is obtained up to Q 2≃ 2 (GeV/c)2. However, the low Q 2-behaviour exhibits a lack of strength, which may be connected with the need of taking into account explicitly further degrees of freedom beyond the three constituent quark ones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050137
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A relativistic study of the nucleon form factors (1998)
    Springer
    The European physical journal 1 (1998), S. 187-192 
    Details
    ISSN: 1434-601X
    Keywords: PACS:12.39.Ki Relativistic quark model – 13.40.Gp Electromagnetic form factors – 14.20.Dh Protons and neutrons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We perform a calculation of the relativistic corrections to the electromagnetic elastic form factors of the nucleon obtained with various Constituent Quark Models. With respect to the non relativistic calculations a substantial improvement is obtained up to Q 2≃ 2 (GeV/c)2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050047
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Nucleon form factors in a simple three-body quark model (1998)
    Springer
    The European physical journal 1 (1998), S. 307-315 
    Details
    ISSN: 1434-601X
    Keywords: PACS:12.39.Jh Nonrelativistic quark model – 13.40.Gp Electromagnetic form factors – 14.20.Gk Baryon resonances with S= 0 Protons and neutrons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We construct a simple 3-body quark model for the non strange nucleon resonances and we give results for the spectrum, the helicity amplitudes and the transition form factors. All the observables, in particular the transition form factors, are evaluated analytically and the results are compared with those of other models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050065
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...