Polarized Parton Densities and Higher Twist in the Light of the Recent CLAS and COMPASS data - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: The impact of the recent very precise CLAS and COMPASS g 1-F 1 data onpolarized parton densities and higher twist effects is discussed. Wedemonstrate that the low Q^2 CLAS data improve essentially our knowledge ofhigher twist corrections to the spin structure function g1, while the large Q^2COMPASS data influence mainly the strange quark and gluon polarizations whichslightly decrease. We find also that the present inclusive DIS data cannot ruleout a negative polarized and changing in sign gluon densities.



Autor: Elliot Leader, Aleksander V. Sidorov, Dimiter B. Stamenov

Fuente: https://arxiv.org/







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