Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data
- Aguilar Faúndez, M.A.O.
- Arnold, K.
- Baccigalupi, C.
- Barron, D.
- Beck, D.
- Beckman, S.
- Bianchini, F.
- Carron, J.
- Cheung, K.
- Chinone, Y.
- Bouhargani, H.E.
- Elleflot, T.
- Errard, J.
- Fabbian, G.
- Feng, C.
- Fujino, T.
- Goeckner-Wald, N.
- Hamada, T.
- Hasegawa, M.
- Hazumi, M.
- Hill, C.A.
- Hirose, H.
- Jeong, O.
- Katayama, N.
- Keating, B.
- Kikuchi, S.
- Kusaka, A.
- Lee, A.T.
- Leon, D.
- Linder, E.
- Lowry, L.N.
- Matsuda, F.
- Matsumura, T.
- Minami, Y.
- Navaroli, M.
- Nishino, H.
- Pham, A.T.P.
- Poletti, D.
- Puglisi, G.
- Reichardt, C.L.
- Segawa, Y.
- Sherwin, B.D.
- Silva-Feaver, M.
- Siritanasak, P.
- Stompor, R.
- Suzuki, A.
- Tajima, O.
- Takatori, S.
- Tanabe, D.
- Teply, G.P.
- Tsai, C.
DOIAbstract
International audienceWe present a measurement of the gravitational lensing deflection power spectrum reconstructed with two seasons cosmic microwave background polarization data from the POLARBEAR experiment. Observations were taken at 150 GHz from 2012 to 2014 which survey three patches of sky totaling 30 square degrees. We test the consistency of the lensing spectrum with a Cold Dark Matter (CDM) cosmology and reject the no-lensing hypothesis at a confidence of 10.9 sigma including statistical and systematic uncertainties. We observe a value of A_L = 1.33 +/- 0.32 (statistical) +/- 0.02 (systematic) +/- 0.07 (foreground) using all polarization lensing estimators, which corresponds to a 24% accurate measurement of the lensing amplitude. C...
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