Particle decay may point to New Physics

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This penguin diagram shows the top quark inside the loop (forming the belly of the penguin or the quantum effect). The New Physics being probed would be the presence and participation of other new particles in this loop. Image credit: Wikipedia (http ...
This "penguin diagram" shows the top quark inside the loop (forming the belly of the penguin, or the "quantum effect"). The New Physics being probed would be the presence and participation of other, new particles in this loop. Image credit: Wikipedia (http://en.wikipedia.org/wiki/Image:Pinguindiagramm.jpg)

A tiny flaw has caught the attention of physicists: the Standard Model (SM) predicts that the B meson mixing phase should be measured at nearly the same result using two different classes of decay modes. However, observations of the two different decay modes recently gave very different values, resulting in an unexpectedly large discrepancy in the B mixing phase.


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