Conveners
BC. Nuclear Physics I
- Mark Pitt (Virginia Tech)
John Leacock
(Virginia Tech)
10/20/11, 8:54 AM
Contributed
The Qweak collaboration at Jefferson Lab is determining the weak charge of the proton. This is done by measuring the parity-violating asymmetry of polarized electrons scattered elastically from the proton at a low Q^2 of 0.026 (GeV/c)^2. The measured asymmetry is partially diluted by polarized electrons inelastically scattered off the proton. Some Qweak experiment running time was used to...
Tim Holmstrom
(Longwood University)
10/20/11, 9:06 AM
Contributed
An experiment (E07--013) to measure the target normal single spin asymmetry A^n_N in inclusive deep-inelastic n^{\uparrow}(e,e') reaction with a vertically polarized 3He target has completed data collection during Jefferson Lab's Hall A neutron transversity experiment (E06--010). The expected accuracy of this measurement is delta A^n_N = 3 x 10^{-3}. There are no previous measurements of this...
Joshua Hoskins
(College of William and Mary)
10/20/11, 9:18 AM
Contributed
The Qweak experiment at Jefferson Laboratory will provide a 4% measurement of the proton's weak charge Q_w^p, using parity-violating electron scattering from Hydrogen at low momentum transfer. The experiment will measure a tiny parity-violating asymmetry ~256 parts per billion, which means control and precise measurement of systematic errors is a must. While great care is being taken to...
Joshua Magee
(College of William and Mary)
10/20/11, 9:30 AM
Contributed
The Standard Model of particle physics has been extremely successful in describing particle interactions in a wide-ranging regime of energy scales. Low-energy, parity-violating experiments enable high-precision experimental tests of Standard Model predictions. Currently, Jefferson Lab is performing one such investigation to determine the weak charge of the proton, Qweak, to 4% precision using...
Amrendra Narayan
(Mississippi State University)
10/20/11, 9:42 AM
Contributed
The Qweak experiment in Hall C at Jefferson Lab aims to measure the weak charge of the proton with a precision of 4.1% by measuring the parity violating asymmetry in polarized electron-proton elastic scattering. Beam polarimetry is the largest experimental contribution to the error budget. A new Compton polarimeter was installed for a non-invasive and continuous monitoring of the electron beam...
Andriy Badin
(Duke University)
10/20/11, 9:54 AM
Contributed
There is experimental evidence that Dark Matter (DM) makes up about 25% of the Universe's mass and is expected to be nonrelativistic in most models. We explore the possibility of the creation and existence of a bound state of Dark Matter and standard model (SM) particles. Such bound states can potentially be created and detected during direct DM search experiments (DAMA, CDMS, XENON etc.). We...
Di-Lun Yang
(Duke University)
10/20/11, 10:06 AM
Contributed
Recently, the effect of next leading order correction from intermediate hadronic loops to the charmonium decays has been widely studied. However, the coupling constants of the charmonium multiplets and heavy mesons cannot be directly measured from experiments. In this talk, we will present the investigation of hadronic loop correction to both hadronic decays and radiative decays of the lowest...
