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Magic, precise, and electroweak

Event Details

Event Dates: 

Thursday, May 2, 2013 - 7:00am

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Andrei Derevianko

Speaker Affiliation(s): 

University of Nevada-Reno
Seminar Type/Subject

Scientific Seminar Type: 

  • Other

Seminar Type Other: 

Bi-group Seminar

Event Details & Abstract: 

Accurate timepieces are marvels of human ingenuity. Over the past half-a-century, precision time-keeping has been carried out with atomic clocks. I will review a novel and rapidly developing class of atomic clocks, optical lattice clocks. At their projected accuracy level, these would neither lose nor gain a fraction of a second over an estimated age of the Universe. In other words, if someone built such a clock at the Big Bang and if the clock survived the 14 billion years, it would be off by no more than a mere second. I will also present the next frontier:the nuclear clock. In the second part I will overview atomic searches for new physics beyond the Standard Model of elementary particles. I will report on a refined analysis of table-top experiments on violation of mirror symmetry in atoms. This analysis sets powerful constraints on a hypothesized particle, the extra Z-boson. Our raised bound on the Z'masses improves upon the Tevatron results and carves out a lower-energy part of the discovery reach of the Large Hadron Collider.

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