APR 01, 1971
Two recent experiments have brought new life to the argument about whether the meson is split—that is, whether it exists as two particles having identical properties except for a 3% difference in mass. The experiments, one performed at CERN by a CERN–Munich group and the other at Brookhaven, both report data indicating the is not split. S. J. Lindenbaum, the leader of the Brookhaven group, presented data at the annual APS meeting in New York that he claims have less than one chance in a million of being consistent with a two‐peak (dipole) mass formula. (The group has also published a letter in Physical Review Letters 26, 413, 1971.)
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© 1971 American Institute of Physics
