ΣcandΛcmagnetic moments from QCD spectral sum rules

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

Magnetic Moments of ∆ and Ω from QCD Sum Rules

QCD sum rules for the magnetic moments of ∆ and Ω− are derived using the external field method. They are analyzed by a Monte-Carlo based procedure, using realistic estimates of the QCD input parameters. The results are consistent with the measured values, despite relatively large errors that can be attributed mostly to the poorly-known vacuum susceptibility χ. It is shown that a 30% level accur...

متن کامل

Determination of Decuplet Baryon Magnetic Moments from QCD Sum Rules

A complete set of QCD sum rules for the magnetic moments of decuplet baryons are derived using the external field method. They are analyzed thoroughly using a Monte-Carlo based procedure. Valid sum rules are identified under the criteria of OPE convergence and ground state dominance and their predictions are obtained. The performances of these sum rules are further compared and a favorable sum ...

متن کامل

Nucleon Electric Dipole Moments from QCD Sum Rules

The electric dipole moments of nucleons ( NEDM, dN ) are calculated using the method of QCD sum rules. Our calculations are based on the parity ( 6P ) and time reversal ( 6T ) violating parameter θ̄ in QCD and establish a functional dependence of the NEDM on θ̄, without assuming a perturbative expansion of this symmetry breaking parameter. The results obtained from the QCD sum rules approach are ...

متن کامل

fBs from QCD sum rules

The decay constants of the pseudoscalar mesons B and Bs are evaluated from QCD sum rules for the pseudoscalar two-point function. Recently calculated perturbative three-loop QCD corrections are incorporated into the sum rule. An analysis in terms of the bottom quark pole mass turns out to be unreliable due to large higher order radiative corrections. On the contrary, in the MS scheme the higher...

متن کامل

gKΣΞ from QCD sum rules

The coupling constants gπΛΣ and gKΣΞ are calculated in the QCD sum rule approach using the three-point function method and taking into account the SU(3) symmetry breaking effects. The pattern of SU(3) breaking appears to be different from that based on SU(3) relations. PACS numbers: 14.20.Gk, 11.55.Hx, 13.75.Gx, 13.75.Jz Typeset using REVTEX E-mail: [email protected]

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 D

سال: 1997

ISSN: 0556-2821,1089-4918

DOI: 10.1103/physrevd.56.7273