Favored and Unfavored Fragmentation of Quarks (image) The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences Share Print E-Mail Caption Comparison of mechanisms of favored and unfavored fragmentation of quarks. (Source: IFJ PAN). Credit Source: IFJ PAN Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.