Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager

Kavli Affiliate: Bruce A. Macintosh | First 5 Authors: Pauline Arriaga, Michael P. Fitzgerald, Gaspard Duchêne, Paul Kalas, Maxwell A. Millar-Blanchaer | Summary: HR4796A hosts a well-studied debris disk with a long history due to its high fractional luminosity and favorable inclination lending itself well to both unresolved and resolved observations. We present new J- […]


Continue.. Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager

The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

Kavli Affiliate: C. M. Ignarra | First 5 Authors: D. S. Akerib, C. W. Akerlof, D. Yu. Akimov, A. Alquahtani, S. K. Alsum | Summary: LUX-ZEPLIN (LZ) is a second-generation direct dark matter experiment with spin-independent WIMP-nucleon scattering sensitivity above $1.4 times 10^{-48}$ cm$^{2}$ for a WIMP mass of 40 GeV/c$^{2}$ and a 1000 d […]


Continue.. The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs

Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector

Kavli Affiliate: D. B. Macfarlane | First 5 Authors: SuperCDMS Collaboration, D. W. Amaral, T. Aralis, T. Aramaki, I. J. Arnquist | Summary: This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, and on dark photon and axion-like particle absorption, using a second-generation SuperCDMS high-voltage eV-resolution […]


Continue.. Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector

Orbital Modulation of Gamma Rays from PSR~J2339$-$0533

Kavli Affiliate: Roger W. Romani | First 5 Authors: Hongjun An, Roger W. Romani, Matthew Kerr, , | Summary: We report on orbital modulation of the 100-600 MeV gamma-ray emission of the $P_{rm B}=4.6$ hr millisecond pulsar binary PSR J2339$-$0533 using 11 yr of Fermi Large Area Telescope data. The modulation has high significance (chance […]


Continue.. Orbital Modulation of Gamma Rays from PSR~J2339$-$0533

Muons in supernovae: implications for the axion-muon coupling

Kavli Affiliate: Peter W. Graham | First 5 Authors: Robert Bollig, William DeRocco, Peter W. Graham, Hans-Thomas Janka, | Summary: The high temperature and electron degeneracy attained during a supernova allow for the formation of a large muon abundance within the core of the resulting proto-neutron star. If new pseudoscalar degrees of freedom have large […]


Continue.. Muons in supernovae: implications for the axion-muon coupling

Muons in supernovae: implications for the axion-muon coupling

Kavli Affiliate: Peter W. Graham | First 5 Authors: Robert Bollig, William DeRocco, Peter W. Graham, Hans-Thomas Janka, | Summary: The high temperature and electron degeneracy attained during a supernova allow for the formation of a large muon abundance within the core of the resulting proto-neutron star. If new pseudoscalar degrees of freedom have large […]


Continue.. Muons in supernovae: implications for the axion-muon coupling

Precision measurement of the ${cal B}(Υ(3S)toτ^+τ^-)/{cal B}(Υ(3S)toμ^+μ^-)$ ratio

Kavli Affiliate: D. B. Macfarlane | First 5 Authors: J. P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano | Summary: We report on a precision measurement of the ratio ${cal R}_{taumu}^{Upsilon(3S)} = {cal B}(Upsilon(3S)totau^+tau^-)/{cal B}(Upsilon(3S)tomu^+mu^-)$ using data collected with the BaBar detector at the SLAC PEP-II $e^+e^-$ collider. The measurement is based on […]


Continue.. Precision measurement of the ${cal B}(Υ(3S)toτ^+τ^-)/{cal B}(Υ(3S)toμ^+μ^-)$ ratio

High sensitivity, levitated microsphere apparatus for short-distance force measurements

Kavli Affiliate: Giorgio Gratta | First 5 Authors: Akio Kawasaki, Alexander Fieguth, Nadav Priel, Charles P. Blakemore, Denzal Martin | Summary: A high sensitivity force sensor based on dielectric microspheres in vacuum, optically trapped by a single, upward-propagating laser beam, is described. Off-axis parabolic mirrors are used both to focus the 1064~nm trapping beam and […]


Continue.. High sensitivity, levitated microsphere apparatus for short-distance force measurements

Ionization Yield in Silicon for eV-Scale Electron-Recoil Processes

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Karthik Ramanathan, Noah Kurinsky, , , | Summary: The development of single charge resolving, macroscopic silicon detectors has opened a window into rare processes at the O(eV) scale. In order to reconstruct the energy of a given event, or model the charge signal obtained for a given […]


Continue.. Ionization Yield in Silicon for eV-Scale Electron-Recoil Processes