Li6inelastic form factors in a cluster model

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Semileptonic form factors – a model-independent approach

We demonstrate that the B → D(∗)lν form factors can be accurately predicted given the slope parameter ρ2 of the Isgur-Wise function. Only weak assumptions, consistent with lattice results, on the wavefunction for the light degrees of freedom are required to establish this result. We observe that the QCD and 1 mQ corrections can be systematically represented by an effective Isgur-Wise function o...

متن کامل

A Model for Dipole Electromagnetic Form Factors

A model of the electromagnetic form factor of the scalar n meson is discussed in which the n meson is a bound state of scalar nucleon-antinucleon system. Starting from an exact integral representation of the form factor, which is well defined in a space-like region of the momentum transfer squared, q2, an analytic continuation of the representation is performed under some plausible assumptions ...

متن کامل

Nucleon Form Factors in Point-Form Spectator-Model Constructions

We discuss electromagnetic currents in the point-form formulation of relativistic quantum mechanics. The construction is along a spectator model and implies that only one quark is explicitly coupled to the photon, but nevertheless many-body contributions are present in the current operator. Such effects are unavoidable in relativistic constructions and resulting ambiguities are notably reduced ...

متن کامل

Electromagnetic form factors in a collective model of the nucleon.

We study the electromagnetic form factors of the nucleon in a collective model of baryons. Using the algebraic approach to hadron structure, we derive closed expressions for both elastic and transition form factors, and consequently for the helicity amplitudes that can be measured in electroand photoproduction. Effects of spin-flavor symmetry breaking and of swelling of hadrons with increasing ...

متن کامل

Nucleon Form Factors in a Covariant Diquark – Quark Model †

In a model where constituent quarks and diquarks interact through quark exchange the Bethe–Salpeter equation in ladder approximation for the nucleon is solved. Quark and diquark confinement is effectively parametrized by choosing appropriately modified propagators. The coupling to external currents is implemented via nontrivial vertex functions for quarks and diquarks to ensure gauge invariance...

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

ژورنال

عنوان ژورنال: Physical Review C

سال: 1994

ISSN: 0556-2813,1089-490X

DOI: 10.1103/physrevc.50.1492