Zobrazeno 1 - 10 of 16 pro vyhledávání: '"Layne C. Price"'
1
Improving Generalizability of Protein Sequence Models with Data Augmentations
Autor: Mohammad Taha Bahadori, Hongyu Shen, Layne C. Price, Franziska Seeger
While protein sequence data is an emerging application domain for machine learning methods, small modifications to protein sequences can result in difficult-to-predict changes to the protein’s function. Consequently, protein machine learning models
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c0bf01b8c6b7d3866109567c119308f
https://doi.org/10.1101/2021.02.18.431877
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2
Effect of reheating on predictions following multiple-field inflation
Autor: Ewan R. M. Tarrant, Joel Meyers, Selim C. Hotinli, Layne C. Price, Jonathan Frazer, Andrew H. Jaffe
Publikováno v: Physical Review D
Physical review / D 97(2), 023511 (2018). doi:10.1103/PhysRevD.97.023511
Physical review / D 97(2), 023511 (2018). doi:10.1103/PhysRevD.97.023511
We study the sensitivity of cosmological observables to the reheating phase following inflation driven by many scalar fields. We describe a method which allows semi-analyti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::208a0a6ba2f84fd1e77cb477efb48706
https://doi.org/10.1103/physrevd.97.023511
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3
Spectrum of the axion dark sector
Autor: Chakrit Pongkitivanichkul, Bobby Samir Acharya, Layne C. Price, Matthew J. Stott, David J. E. Marsh
Publikováno v: Physical Review D. 96
Axions arise in many theoretical extensions of the Standard Model of particle physics, in particular the "string axiverse". If the axion masses, $m_a$, and (effective) decay constants, $f_a$, lie in specific ranges, then axions contribute to the cosm
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e350de02113550d9195f4547cccb274f
https://doi.org/10.1103/physrevd.96.083510
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4
Ultracompact Minihalos as Probes of Inflationary Cosmology
Autor: Geraint F. Lewis, Grigor Aslanyan, Pat Scott, Layne C. Price, Richard Easther, Hamish A. Clark, Torsten Bringmann, Jenni Adams
Cosmological inflation generates primordial density perturbations on all scales, including those far too small to contribute to the cosmic microwave background. At these scales, isolated ultracompact minihalos of dark matter can form well before stan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12e63c117db71f4a9080140625f914a5
http://hdl.handle.net/10044/1/54154
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5
Testing for New Physics: Neutrinos and the Primordial Power Spectrum
Autor: Grigor Aslanyan, Nicolas Canac, Richard Easther, Kevork N. Abazajian, Layne C. Price
Publikováno v: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, vol 2016, iss 9
Canac, N; Aslanyan, G; Abazajian, KN; Easther, R; & Price, LC. (2016). Testing for new physics: neutrinos and the primordial power spectrum. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, (9). doi: 10.1088/1475-7516/2016/09/022. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/74f7n0df
Journal of Cosmology and Astroparticle Physics, vol 2016, iss 09
We test the sensitivity of neutrino parameter constraints from combinations of CMB and LSS data sets to the assumed form of the primordial power spectrum (PPS) using Bayesian model selection. Significantly, none of the tested combinations, including
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e4de42f2bda4edd5ceb83070722c708
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6
Designing and testing inflationary models with Bayesian networks
Autor: Richard Easther, Hiranya V. Peiris, Jonathan Frazer, Layne C. Price
Publikováno v: Journal of Cosmology and Astroparticle Physics
Journal of cosmology and astroparticle physics 2016(02), 049-049 (2016). doi:10.1088/1475-7516/2016/02/049
Journal of cosmology and astroparticle physics 2016(02), 049 - 049(2016). doi:10.1088/1475-7516/2016/02/049
Even simple inflationary scenarios have many free parameters. Beyond the variables appearing in the inflationary action, these include dy
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7
Power spectrum oscillations from Planck-suppressed operators in effective field theory motivated monodromy inflation
Autor: Layne C. Price
Publikováno v: Physical Review D. 92
We consider a phenomenological model of inflation where the inflaton is the phase of a complex scalar field $\Phi$. Planck-suppressed operators of $\mathcal O(f^5/M_\mathrm{pl})$ modify the geometry of the vev $\langle \Phi \rangle$ at first order in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7819a6868b264db2e93bc2f7185c6e04
https://doi.org/10.1103/physrevd.92.103507
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8
Learn-As-You-Go Acceleration of Cosmological Parameter Estimates
Autor: Grigor Aslanyan, Richard Easther, Layne C. Price
Cosmological analyses can be accelerated by approximating slow calculations using a training set, which is either precomputed or generated dynamically. However, this approach is only safe if the approximations are well understood and controlled. This
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9
THE VELOCITY DISTRIBUTION FUNCTION OF GALAXY CLUSTERS AS A COSMOLOGICAL PROBE
Autor: Jessi Cisewski, Hy Trac, Michelle Ntampaka, Layne C. Price
Publikováno v: The Astrophysical Journal. 835:106
We present a new approach for quantifying the abundance of galaxy clusters and constraining cosmological parameters using dynamical measurements. In the standard method, galaxy line-of-sight (LOS) velocities, $v$, or velocity dispersions are used to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db4dbfd0198c32dedb73ca4b6954cc31
https://doi.org/10.3847/1538-4357/835/1/106
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10
The Knotted Sky I: Planck constraints on the primordial power spectrum
Autor: Richard Easther, Layne C. Price, Kevork N. Abazajian, Grigor Aslanyan
Publikováno v: Journal of Cosmology and Astroparticle Physics, vol 2014, iss 8
Aslanyan, G; Price, LC; Abazajian, KN; & Easther, R. (2014). The Knotted Sky I: Planck constraints on the primordial power spectrum. Journal of Cosmology and Astroparticle Physics, 2014(8). doi: 10.1088/1475-7516/2014/08/052. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/894009x2
Journal of Cosmology and Astroparticle Physics, vol 2014, iss 08
Aslanyan, G; Price, LC; Abazajian, KN; & Easther, R. (2014). The Knotted Sky I: Planck constraints on the primordial power spectrum. Journal of Cosmology and Astroparticle Physics, 2014(8). doi: 10.1088/1475-7516/2014/08/052. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/13q3v8mm
Using the temperature data from Planck we search for departures from a power-law primordial power spectrum, employing Bayesian model-selection and posterior probabilities. We parametrize the spectrum with $n$ knots located at arbitrary values of $\lo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d221199fe6ba5f2812bd33cc349acaf2
https://escholarship.org/uc/item/894009x2
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