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Full-Text Articles in Physics
Prospects For Determination Of Thermal History After Inflation With Future Gravitational Wave Detectors, Sachiko Kuroyanagi, Kazunori Nakayama, Shun Saito
Prospects For Determination Of Thermal History After Inflation With Future Gravitational Wave Detectors, Sachiko Kuroyanagi, Kazunori Nakayama, Shun Saito
Physics Faculty Research & Creative Works
Thermal history of the Universe between inflation and big-bang nucleosynthesis has not yet been revealed observationally. It will be probed by the detection of primordial gravitational waves generated during inflation, which contain information on the reheating temperature as well as the equation of state of the Universe after inflation. Based on the Fisher information formalism, we examine how accurately the tensor-to-scalar ratio and reheating temperature after inflation can be simultaneously determined with space-based gravitational wave detectors such as the DECI-hertz Interferometer Gravitational-wave Observatory and the Big-Bang Observer. We show that the reheating temperature is best determined if it is around …
Quantum Gravity In Relativistic Phase Space, Jeffrey Hazboun
Quantum Gravity In Relativistic Phase Space, Jeffrey Hazboun
Presentations
No abstract provided.
First Dark Matter Search Results From A Surface Run Of The 10-L Dmtpc Directional Dark Matter Detector, S. Ahlen, James B. R. Battat, T. Caldwell, C. Deaconu, D. Dujmic, W. Fedus, P. Fisher, F. Golub, S. Henderson, A. Inglis, A. Kaboth, G. Kohse, R. Lanza, A. Lee, J. Lopez, J. Monroe, T. Sahin, G. Sciolla, N. Skvorodnev, H. Tomita, H. Wellenstein, I. Wolfe, R. Yamamoto, H. Yegoryan
First Dark Matter Search Results From A Surface Run Of The 10-L Dmtpc Directional Dark Matter Detector, S. Ahlen, James B. R. Battat, T. Caldwell, C. Deaconu, D. Dujmic, W. Fedus, P. Fisher, F. Golub, S. Henderson, A. Inglis, A. Kaboth, G. Kohse, R. Lanza, A. Lee, J. Lopez, J. Monroe, T. Sahin, G. Sciolla, N. Skvorodnev, H. Tomita, H. Wellenstein, I. Wolfe, R. Yamamoto, H. Yegoryan
Physics Faculty Research and Scholarship
The Dark Matter Time Projection Chamber (DMTPC) is a low pressure (75 Tort CF(4)) 10 liter detector capable of measuring the vector direction of nuclear recoils with the goal of directional dark matter detection. In this Letter we present the first dark matter limit from DMTPC from a surface run at MIT. In an analysis window of 80-200 keV recoil energy, based on a 35.7 g-day exposure, we set a 90% C.L. upper limit on the spin-dependent WIMP-proton cross section of 2.0 x 10(-33) cm(2) for 115 GeV/c(2) dark matter particle mass.
Scaling Relations And Overabundance Of Massive Clusters At Z ≳ 1 From Weak-Lensing Studies With The Hubble Space Telescope, M J. Jee, Ks Dawson, H Hoekstra, S Perlmutter, P Rosati, M Brodwin, N Sukuzi, B Koester, M Postman, L Lubin, J Meyers, Sa Stanford, K Barbary, F Barrientos, P Eisenhardt, Hc Ford, Dg Gibank, Md Gladders, A Gonzalez, Dw Harris, Xiaosheng Huang, C Lidman, Es Rykoff, D Rubin, Al Spadafora
Scaling Relations And Overabundance Of Massive Clusters At Z ≳ 1 From Weak-Lensing Studies With The Hubble Space Telescope, M J. Jee, Ks Dawson, H Hoekstra, S Perlmutter, P Rosati, M Brodwin, N Sukuzi, B Koester, M Postman, L Lubin, J Meyers, Sa Stanford, K Barbary, F Barrientos, P Eisenhardt, Hc Ford, Dg Gibank, Md Gladders, A Gonzalez, Dw Harris, Xiaosheng Huang, C Lidman, Es Rykoff, D Rubin, Al Spadafora
Physics and Astronomy
We present weak gravitational lensing analysis of 22 high-redshift (z 1) clusters based on Hubble Space Telescope images. Most clusters in our sample provide significant lensing signals and are well detected in their reconstructed two-dimensional mass maps. Combining the current results and our previous weak-lensing studies of five other high-z clusters, we compare gravitational lensing masses of these clusters with other observables. We revisit the question whether the presence of the most massive clusters in our sample is in tension with the current ΛCDM structure formation paradigm. We find that the lensing masses are tightly correlated with the …