174 citations · 459 across the 11 of their papers we have counts for
11 papers
New Limits on Transformation from HFIR Cold Neutron Beam
James M. Rogers, Leah J. Broussard, Christopher B. Crawford +16
Hypothetical neutron to sterile neutron transformations would violate baryon number and point to the nature of Dark Matter. We performed a new search for $n…
Ultracold Neutron Properties of the Eljen-299-02D deuterated scintillator
Z. Tang, E. B. Watkins, S. M. Clayton +24
In this paper we report studies of the Fermi potential and loss per bounce of ultracold neutron (UCN) on a deuterated scintillator (Eljen-299-02D). These UCN properties of the scin…
A boron-coated CCD camera for direct detection of Ultracold Neutrons (UCN)
K. Kuk, C. Cude-Woods, C. R. Chavez +48
A new boron-coated CCD camera is described for direct detection of ultracold neutrons (UCN) through the capture reactions B (n,0)Li (6%) and B(n,1)$^7…
Measurement of the neutron lifetime using a magneto-gravitational trap
Nathan Callahan
Precision measurements of the free neutron lifetime , when combined with measurements of the axial vector form factor, can be used to test unitarity of the CKM matrix. Non-uni…
Search for the Neutron Decay n X+ where X is a dark matter particle
Z. Tang, M. Blatnik, L. J. Broussard +21
In a recent paper submitted to Physical Review Letters, Fornal and Grinstein have suggested that the discrepancy between two different methods of neutron lifetime measurements, the…
New result for the neutron -asymmetry parameter from UCNA
M. A. -P. Brown, E. B. Dees, E. Adamek +56
The neutron -decay asymmetry parameter defines the correlation between the spin of the neutron and the momentum of the emitted electron, which determines $λ=\frac{g_{A}}{g…
Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection
R. W. Pattie, N. B. Callahan, C. Cude-Woods +35
The precise value of the mean neutron lifetime, , plays an important role in nuclear and particle physics and cosmology. It is a key input for predicting the ratio of protons…
Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy
Wanchun Wei, L. J. Broussard, M. A. Hoffbauer +29
Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated using an imaging charge-coupled device (CCD) camera. A spatial resolution less than 15 m has been achie…
Ultracold Neutron Production in a Pulsed Neutron Beam Line
C. M. Lavelle, W. Fox, G. Manus +9
We present the results of an Ultracold neutron (UCN) production experiment in a pulsed neutron beam line at the Los Alamos Neutron Scattering Center. The experimental apparatus all…
An Apparatus to Control and Monitor the Para-D2 Concentration in a Solid Deuterium, Superthermal Source of Ultra-cold Neutrons
C. -Y. Liu, S. K. Lamoreaux, A. Saunders +2
Controlling and measuring the concentration of para-D2 is an essential step toward realizing solid deuterium as an intense ultra-cold neutron (UCN) source. To this end, we implemen…
Measurements of ultracold neutron lifetimes in solid deuterium
C. L. Morris, J. M. Anaya, T. J. Bowles +24
We present the first measurements of the survival time of ultracold neutrons (UCNs) in solid deuterium SD2. This critical parameter provides a fundamental limitation to the effecti…