Update of the stranger story: The strange vector form factors of the nucleon in the SU(3) chiral quark-soliton model

نویسندگان

  • Hyun-Chul Kim
  • Teruaki Watabe
  • Klaus Goeke
چکیده

Abstract The strange vector form factors are evaluated for Q2 = 0 and Q2 = 1 GeV in the framework of the SU(3) chiral quark-soliton model (or semi-bosonized SU(3) Nambu-Jona-Lasinio model). The rotational 1/Nc and ms corrections are taken into account up to linear order. The mean-square strange radius 〈r2〉Sachs s = −0.35 fm and the strange magnetic moment μs = −0.44 μN are obtained. The results are compared with several different models. PACS: 12.40.-y, 14.20.Dh

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Axial-vector form factors of the nucleon within the chiral quark-soliton model and their strange components

We investigate three different axial-vector form factors of the nucleon, GA, G 3 A, G 8 A, within the framework of the SU(3) chiral quark-soliton model, emphasizing their strangeness content. We take into account the rotational 1/Nc and linear strange quark (ms) contributions using the symmetryconserving SU(3) quantization and assuming isospin symmetry. The strange axial-vector form factor is a...

متن کامل

Strange vector form factors of the nucleon in the SU(3) chiral quark-soliton model with the proper kaonic cloud

Abstract The strange vector form factors are evaluated in the range between Q2 = 0 and Q2 = 1 GeV in the framework of the SU(3) chiral quark-soliton model (or semi-bosonized SU(3) Nambu-Jona-Lasinio model). The rotational 1/Nc and ms corrections are taken into account up to linear order. Taking care of a proper Yukawa-tail of the kaonic cloud, we get 〈r2〉Sachs s = −0.095 fm and μs = −0.68 μN . ...

متن کامل

Form Factors of the Nucleon in the Su(3) Chiral Quark-soliton Model

The recent investigation on various form factors of the nucleon is reviewed in the framework of the SU(3) chiral quark-soliton model. The results for the electromagnetic and scalar form factors are in remarkable agreement with experimental and empirical data. The strange vector form factors are also discussed with the effect of the kaon cloud being considered. In addition to the form factors, t...

متن کامل

Electromagnetic form factors of the SU(3) octet baryons in the semibosonized SU(3) Nambu-Jona-Lasinio model.

The electromagnetic form factors of the SU(3) octet baryons are investigated in the semibosonized SU(3) Nambu–Jona-Lasinio model (chiral quark-soliton model). The rotational 1/N c and strange quark mass corrections in linear order are taken into account. The electromagnetic charge radii of the nucleon and magnetic moments are also evaluated. It turns out that the model is in * 1 a remarkable go...

متن کامل

Strangeness Content of the Nucleon within the Njl Soliton Model

We investigated the form factors of the nucleon associated with the nonet vector current in the framework of the generalized Yabu–Ando approach to the chiral soliton of the Nambu–Jona– Lasinio model. We introduce a variational parameter to improve the predictions for the baryon mass splittings and, in addition, we take into account 1/Nc rotational corrections to accommodate the empirical isovec...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1996