Showing papers by "C. Wilkinson published in 2015"
TL;DR: In this article, the authors presented a semi-coherent analysis of 10 days of LIGO S5 data ranging from 50-550 Hz, and performed an incoherent sum of coherent power distributed amongst frequency-modulated orbital sidebands.
Abstract: We present results of a search for continuously-emitted gravitational radiation, directed at the brightest low-mass X-ray binary, Scorpius X-1. Our semi-coherent analysis covers 10 days of LIGO S5 data ranging from 50-550 Hz, and performs an incoherent sum of coherent $\mathcal{F}$-statistic power distributed amongst frequency-modulated orbital sidebands. All candidates not removed at the veto stage were found to be consistent with noise at a 1% false alarm rate. We present Bayesian 95% confidence upper limits on gravitational-wave strain amplitude using two different prior distributions: a standard one, with no a priori assumptions about the orientation of Scorpius X-1; and an angle-restricted one, using a prior derived from electromagnetic observations. Median strain upper limits of 1.3e-24 and 8e-25 are reported at 150 Hz for the standard and angle-restricted searches respectively. This proof of principle analysis was limited to a short observation time by unknown effects of accretion on the intrinsic spin frequency of the neutron star, but improves upon previous upper limits by factors of ~1.4 for the standard, and 2.3 for the angle-restricted search at the sensitive region of the detector.
48 citations
21 Jul 2015
TL;DR: In this paper, the authors review the development of the neutrino simulation generator NEUT to incorporate more sophisticated Charged Current Quasi-Elastic (CCQE) cross-section models, including multi-nucleon interaction (2p2h) effects.
Abstract: The MiniBooNE large axial-mass anomaly has motivated the development of new theoretical Charged Current Quasi-Elastic (CCQE) cross-section models in recent years. These proceedings review the development of the neutrino simulation generator NEUT to incorporate these more sophisticated CCQE models, including multi-nucleon interaction (2p2h) effects. The fit results on the MINER$
u$A and MiniBoone data are used to tune neutrino interaction models in NEUT and develop a default cross-section model for T2K.
2 citations
Posted Content•
TL;DR: In this article, the authors review the development of the neutrino simulation generator NEUT to incorporate more sophisticated Charged Current Quasi-Elastic (CCQE) cross-section models, including multi-nucleon interaction (2p2h) effects.
Abstract: The MiniBooNE large axial-mass anomaly has motivated the development of new theoretical Charged Current Quasi-Elastic (CCQE) cross-section models in recent years. These proceedings review the development of the neutrino simulation generator NEUT to incorporate these more sophisticated CCQE models, including multi-nucleon interaction (2p2h) effects. The fit results on the MINER$
u$A and MiniBoone data are used to tune neutrino interaction models in NEUT and develop a default cross-section model for T2K.