New constraints on the mass bias of galaxy clusters from the power spectra of the thermal Sunyaev-Zeldovich effect and cosmic shear

Kavli Affiliate: Chiaki Hikage | Summary:Thermal Sunyaev-Zeldovich (tSZ) power spectrum is a powerful probe of the present-day amplitude of matter density fluctuations, and has been measured up to $ellapprox 10^3$ from the it Planck data. The largest systematic uncertainty in the interpretation of this data is the so-called "mass bias" parameter $B$, which relates the […]


Continue.. New constraints on the mass bias of galaxy clusters from the power spectra of the thermal Sunyaev-Zeldovich effect and cosmic shear

Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program

Kavli Affiliate: Hiroaki Aihara | Summary:This paper presents the second data release of the Hyper Suprime-Cam Subaru Strategic Program, a wide-field optical imaging survey on the 8.2 meter Subaru Telescope. The release includes data from 174 nights of observation through January 2018. The Wide layer data cover about 300 deg^2 in all five broadband filters […]


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Weak Lensing Measurement of Filamentary Structure with the SDSS BOSS and Subaru Hyper Suprime-Cam Data

Kavli Affiliate: Naoshi Sugiyama | Summary:We report the weak lensing measurement of filaments between Sloan Digital Sky Survey (SDSS) III/Baryon Oscillation Spectroscopic Survey (BOSS) CMASS galaxy pairs at $zsim0.55$, using the Subaru Hyper Suprime-Cam (HSC) first-year galaxy shape catalogue. Despite of the small overlap of $140$ deg$^2$ between these surveys we detect the filament lensing […]


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Detectability of CMB Weak Lensing and HI Cross Correlation and constraints on cosmological parameters

Kavli Affiliate: Naoshi Sugiyama | Summary:Neutral hydrogen (H$_rm I$) intensity mapping is capable of measuring redshift evolution of H$_rm I$ density parameter $Ω_rm H_rm I$, which is an important parameter to understand structure formation in the post-reionization epoch. Future H$_rm I$ observation with Square Kilometre Array (SKA) can significantly improve constraints on the parameter. However, […]


Continue.. Detectability of CMB Weak Lensing and HI Cross Correlation and constraints on cosmological parameters

Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from POLARBEAR and Cosmic Shear from Subaru Hyper Suprime-Cam

Kavli Affiliate: Hiroaki Aihara | Summary:We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) it polarization data, and the cosmic shear field from galaxy shapes. This measurement is made using data from the POLARBEAR CMB experiment and the Subaru Hyper Suprime-Cam (HSC) survey. By analyzing an 11~deg$^2$ […]


Continue.. Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from POLARBEAR and Cosmic Shear from Subaru Hyper Suprime-Cam

Discovery of the First Low-Luminosity Quasar at z > 7

Kavli Affiliate: Naoshi Sugiyama | Summary:We report the discovery of a quasar at z = 7.07, which was selected from the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. This quasar, HSC J124353.93+010038.5, has an order of magnitude lower luminosity than do the other known quasars at z > […]


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The International Linear Collider. A Global Project

Kavli Affiliate: Hiroaki Aihara | Summary:A large, world-wide community of physicists is working to realise an exceptional physics program of energy-frontier, electron-positron collisions with the International Linear Collider (ILC). This program will begin with a central focus on high-precision and model-independent measurements of the Higgs boson couplings. This method of searching for new physics beyond […]


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The cohomological Hall algebra of a surface and factorization cohomology

Kavli Affiliate: Mikhail Kapranov | Summary:For a smooth quasi-projective surface S over complex numbers we consider the Borel-Moore homology of the stack of coherent sheaves on S with compact support and make this space into an associative algebra by a version of the Hall multiplication. This multiplication involves data (virtual pullbacks) governing the derived moduli […]


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Research and Development for Near Detector Systems Towards Long Term Evolution of Ultra-precise Long-baseline Neutrino Experiments

Kavli Affiliate: Mark Hartz | Summary:With the discovery of non-zero value of $θ_13$ mixing angle, the next generation of long-baseline neutrino (LBN) experiments offers the possibility of obtaining statistically significant samples of muon and electron neutrinos and anti-neutrinos with large oscillation effects. In this document we intend to highlight the importance of Near Detector facilities […]


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Future Opportunities in Accelerator-based Neutrino Physics

Kavli Affiliate: Masayuki Nakahata | First 5 Authors: Andrea Dell’Acqua, Antoni Aduszkiewicz, Markus Ahlers, Hiroaki Aihara, Tyler Alion | Summary: This document summarizes the conclusions of the Neutrino Town Meeting held at CERN in October 2018 to review the neutrino field at large with the aim of defining a strategy for accelerator-based neutrino physics in […]


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