Current Quark Masses (image) World Scientific Share Print E-Mail Caption Here the current quark masses, the gauge couplings, and the Higgs self-coupling are fixed. The different lines correspond to the different life times of a Helium nucleus. Credit Dr. Yuta Hamada, Dr. Hikaru Kawai and Dr. Kiyoharu Kawana at Kyoto University 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.