F
Federico R. Urban
Researcher at Academy of Sciences of the Czech Republic
Publications - 48
Citations - 1872
Federico R. Urban is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Cosmic ray & Telescope. The author has an hindex of 19, co-authored 48 publications receiving 1648 citations. Previous affiliations of Federico R. Urban include University of British Columbia & Chinese Academy of Sciences.
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Indications of Intermediate-Scale Anisotropy of Cosmic Rays with Energy Greater Than 57 EeV in the Northern Sky Measured with the Surface Detector of the Telescope Array Experiment
Rasha Abbasi,M. Abe,Tareq Abu-Zayyad,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,M. J. Chae,B. G. Cheon,Jyunsei Chiba,Michiyuki Chikawa,W. R. Cho,Toshitsugu Fujii,Masaki Fukushima,T. Goto,William Hanlon,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Honda,Daisuke Ikeda,N. Inoue,Takaaki Ishii,R. Ishimori,Hidemi Ito,Dmitri Ivanov,C. C. H. Jui,K. Kadota,Fumio Kakimoto,Oleg Kalashev,K. Kasahara,H. Kawai,S. Kawakami,Shingo Kawana,K. Kawata,Eiji Kido,Hongsu Kim,J. H. Kim,S. Kitamura,Yasunori Kitamura,Vladim Kuzmin,Y. J. Kwon,J. Lan,S. I. Lim,J. P. Lundquist,Kazuhiro Machida,K. Martens,Tomohiro Matsuda,T. Matsuyama,John N. Matthews,Mayuko Minamino,Keijiro Mukai,Isaac Myers,K. Nagasawa,Shigehiro Nagataki,Toru Nakamura,Toshiyuki Nonaka,A. Nozato,Shoichi Ogio,J. Ogura,M. Ohnishi,Hideyuki Ohoka,K. Oki,Takeshi Okuda,Masaomi Ono,Akitoshi Oshima,S. Ozawa,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,Grigory Rubtsov,Dongsu Ryu,Hiroyuki Sagawa,Nobuyuki Sakurai,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,T.-A. Shibata,Hideaki Shimodaira,Bokkyun Shin,J. D. Smith,Pierre Sokolsky,R. W. Springer,B. T. Stokes,S. R. Stratton,Tom Stroman,T. Suzawa,Mai Takamura,M. Takeda,Ryuji Takeishi,Akimichi Taketa,M. Takita,Yuichiro Tameda,Hideki Tanaka,Kenichi Tanaka,M. Tanaka,S. B. Thomas,Gordon Thomson,Peter Tinyakov,Igor Tkachev,Hisono Tokuno,Takayuki Tomida,Sergey Troitsky,Y. Tsunesada,K. Tsutsumi,Y. Uchihori,Shigeharu Udo,Federico R. Urban,G. Vasiloff,Tiffany Wong,R. Yamane,Hiroshi Yamaoka,K. Yamazaki,J. Yang,Kenta Yashiro,Y. Yoneda,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +124 more
TL;DR: In this paper, the authors search for intermediate-scale anisotropy in the arrival directions of ultra-high-energy cosmic rays with energies above 57~EeV in the northern sky using data collected over a 5 year period by the surface detector of the Telescope Array experiment.
Journal ArticleDOI
Natural extension of the Generalised Uncertainty Principle
Cosimo Bambi,Federico R. Urban +1 more
TL;DR: In this article, the authors propose an extension of the generalized uncertainty principle (GUP) which implies the existence of a minimum observable momentum, which is directly connected to the nonzero cosmological constant, which becomes a necessary ingredient for a more complete picture of the quantum space.
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The cosmological constant from the QCD Veneziano ghost
TL;DR: In this article, the authors show that the solution to the cosmological vacuum energy puzzle is linked to the infrared sector of the effective theory of gravity interacting with standard model fields, with QCD fields specifically.
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Cosmological constant from the ghost: A toy model
TL;DR: In this paper, the 2D Schwinger model on a 2-torus and in curved 2D space is analyzed and the departure from Minkowski flatness is found to scale as 1/L, where L is the linear size of the torus.
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The QCD nature of dark energy
TL;DR: In this article, the Veneziano ghost, being unphysical in the usual Minkowski QFT, exhibits important physical eects if the universe is expanding, which are naturally very small as they are proportional to the rate of expansion H = QCD 10 41.