Physics of fundamental Symmetries and Interactions - PSI2010

Session

Session Th - 1

4 - 1

14 Oct 2010, 09:00

Main Auditorium (WHGA/001) (PSI)

6. Experimental tests of quantum mechanics (Pauli Exclusion Principle and spontaneous collapse model)

Dr Catalina Oana Curceanu (LNF-INFN)

14/10/2010, 09:00

Searches for symmetry violations

Oral

Experimental undergoing tests of the Pauli Exclusion Principle violation will be presented, together with future plans to measure the spontaneous emission of X rays predicted in collapse models. We present a method of searching for possible small violations of the Pauli Exclusion Principle (PEP) for electrons, through the search for "anomalous" X-ray transitions in copper atoms, produced by...

75. Measuring the fall of antihydrogen: the AEGIS experiment at CERN

michael doser (cern)

14/10/2010, 09:20

Exotic atoms and molecules

Oral

Experimental studies of Antihydrogen have a short history, but an ambitious future: a first generation of experiments, in which cold charged plasmas of positrons and antiprotons were combined, produced large numbers of antihydrogen atoms for the first time in 2002. These have given place to a second wave of experiments which are attempting the next steps of trapping and cooling antihydrogen...

36. A search for nEDM and new constraints on short-range "pseudo-magnetic" interaction of neutron with matter using new effects in neutron optics of noncentrosymmetric crystals

Prof. Valery Fedorov (Petersburg Nuclear Physics Institute)

14/10/2010, 09:40

Searches for new forces

Oral

Here we will discuss new effects resulting from the recently predicted and discovered strong electric fields (up to 10^9 V/cm), which affect the neutrons moving in noncentrosymmetric crystals. Such fields depend on the value and direction of the neutron momentum and result in some new polarization phenomena observable in neutron diffraction and optics. That opens, for example, a new way for...

132. Noble gas EDM measurements and noble gas magnetometry

Prof. Tim Chupp (University of Michigan)

14/10/2010, 10:00

Oral

Spin-polarized noble gases have several attractive features for EDM measurements: 1) several species can be polarized simultaneously by spin-exchange optical pumping; 2) they can be contained in cells; 3) spin relaxation times can be long - minutes to hours providing narrow linewidths and high precision; 4) large signal to noise results from spin-polarization of high densities; 5) multiple...

64. Experimental search for 129Xe atomic EDM with nuclear spin maser technique

Mr Takeshi Inoue (Tokyo Institute of Technology)

14/10/2010, 10:20

Searches for permanent electric dipole moments

Oral

Electric dipole moment (EDM) of a particle violates P and T symmetries and serves as a definitive probe for new physics beyond the standard model of elementary particles. We plan to search for an EDM in a diamagnetic atom 129Xe, taking advantage of spin maser technique. In a conventional spin maser the spin precession is maintained by virtue of a feedback field that is generated by a coil...