Pasupathy, J and Singh, JP and Wilson, SL and Chiu, CB (1987) Determination of the magnetic moment by QCD sum rules. In: Physical Review D- Particles and Fields, 36 (5). 1442 - 1450.
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The magnetic moment of the Λ hyperon is calculated using the QCD sum-rule approach of Ioffe and Smilga. It is shown that μΛ has the structure μΛ=(2/3(eu+ed+4es)(eħ/2MΛc)(1+δΛ), where δΛ is small. In deriving the sum rules special attention is paid to the strange-quark mass-dependent terms and to several additional terms not considered in earlier works. These terms are now appropriately incorporated. The sum rule is analyzed using the ratio method. Using the external-field-induced susceptibilities determined earlier, we find that the calculated value of μΛ is in agreement with experiment.
|Item Type:||Journal Article|
|Additional Information:||copy right of this article belongs to The American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Centre for Theoretical Studies|
|Date Deposited:||03 Jul 2009 06:21|
|Last Modified:||19 Sep 2010 05:34|
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