K
K. Helbing
Researcher at Lawrence Berkeley National Laboratory
Publications - 13
Citations - 1631
K. Helbing is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Neutrino & Neutrino detector. The author has an hindex of 10, co-authored 13 publications receiving 1609 citations.
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Journal ArticleDOI
Optical properties of deep glacial ice at the South Pole
Markus Ackermann,J. Ahrens,Xinhua Bai,M. Bartelt,S. W. Barwick,R. C. Bay,T. Becka,J. K. Becker,K.-H. Becker,P. Berghaus,Elisa Bernardini,D. Bertrand,D. J. Boersma,S. Böser,Olga Botner,Adam Bouchta,Othmane Bouhali,C.P. Burgess,T. Burgess,T. Castermans,Dmitry Chirkin,B. Collin,Jan Conrad,Jodi Cooley,D. F. Cowen,Anna Davour,C. De Clercq,C.P. de los Heros,Paolo Desiati,Tyce DeYoung,P. Ekström,T. Feser,Thomas K. Gaisser,R. Ganugapati,Heiko Geenen,L. Gerhardt,A. Goldschmidt,Axel Groß,Allan Hallgren,Francis Halzen,Kael Hanson,D. Hardtke,Torsten Harenberg,T. Hauschildt,K. Helbing,M. Hellwig,P. Herquet,G. C. Hill,Joseph T. Hodges,D. Hubert,B. Hughey,P. O. Hulth,K. Hultqvist,S. Hundertmark,Janet Jacobsen,Karl-Heinz Kampert,Albrecht Karle,M. Kestel,G. Kohnen,L. Köpke,Marek Kowalski,K. Kuehn,R. Lang,H. Leich,Matthias Leuthold,I. Liubarsky,Johan Lundberg,James Madsen,Pawel Marciniewski,H. S. Matis,C. P. McParland,T. Messarius,Y. Minaeva,P. Miocinovic,R. Morse,K. Münich,R. Nahnhauer,J. W. Nam,T. Neunhöffer,P. Niessen,D. R. Nygren,Ph. Olbrechts,A. C. Pohl,R. Porrata,P. B. Price,Gerald Przybylski,K. Rawlins,Elisa Resconi,Wolfgang Rhode,M. Ribordy,S. Richter,J. Rodríguez Martino,H. G. Sander,S. Schlenstedt,David A. Schneider,R. Schwarz,A. Silvestri,M. Solarz,Glenn Spiczak,Christian Spiering,Michael Stamatikos,D. Steele,P. Steffen,R. G. Stokstad,K. H. Sulanke,Ignacio Taboada,O. Tarasova,L. Thollander,S. Tilav,Wolfgang Wagner,C. Walck,M. Walter,Yi Wang,C. H. Wiebusch,R. Wischnewski,H. Wissing,Kurt Woschnagg +116 more
TL;DR: In this article, the authors used pulsed and continuous light sources embedded with the AMANDA neutrino telescope, an array of more than six hundred photomultiplier tubes buried deep in the ice.
Journal ArticleDOI
Sensitivity of the IceCube detector to astrophysical sources of high energy muon neutrinos
J. Ahrens,John N. Bahcall,Xinhua Bai,R. C. Bay,T. Becka,K.-H. Becker,D. Berley,Elisa Bernardini,D. Bertrand,D. Z. Besson,A. Biron,E. Blaufuss,D. J. Boersma,S. Böser,Christian Bohm,Olga Botner,Adam Bouchta,Othmane Bouhali,T. Burgess,William Carithers,T. Castermans,J. Cavin,W. Chinowsky,Dmitry Chirkin,B. Collin,Jan Conrad,Jodi Cooley,D. F. Cowen,Anna Davour,C. De Clercq,T. DeYoung,Paolo Desiati,R. Ehrlich,R. W. Ellsworth,Paul Evenson,A. R. Fazely,T. Feser,Thomas K. Gaisser,Jean Gallagher,R. Ganugapati,Heiko Geenen,A. Goldschmidt,J. A. Goodman,R. M. Gunasingha,Allan Hallgren,Francis Halzen,Kael Hanson,R. Hardtke,T. Hauschildt,D. Hays,K. Helbing,M. Hellwig,Ph. Herquet,G. C. Hill,D. Hubert,B. Hughey,P. O. Hulth,K. Hultqvist,S. Hundertmark,Janet Jacobsen,George Japaridze,A. W. Jones,Albrecht Karle,H. Kawai,M. Kestel,N. Kitamura,R Koch,L. Köpke,Marek Kowalski,J. I. Lamoureux,H. Leich,Matthias Leuthold,I. Liubarsky,James Madsen,H. S. Matis,C. P. McParland,T. Messarius,Peter Mészáros,Y. Minaeva,R. H. Minor,P. Miocinovic,H. Miyamoto,R. Morse,R. Nahnhauer,T. Neunhöffer,P. Niessen,D. R. Nygren,Hakki Ögelman,Ph. Olbrechts,S. Patton,R. Paulos,C. Pérez de los Heros,A. C. Pohl,J. Pretz,P. B. Price,Gerald Przybylski,K. Rawlins,Soebur Razzaque,Elisa Resconi,Wolfgang Rhode,M. Ribordy,S. Richter,H. G. Sander,K. Schinarakis,S. Schlenstedt,T. O. B. Schmidt,David A. Schneider,R. Schwarz,D. Seckel,A. J. Smith,M. Solarz,Glenn Spiczak,Christian Spiering,Michael Stamatikos,Todor Stanev,D. Steele,P. Steffen,T. Stezelberger,R. G. Stokstad,K. H. Sulanke,G. W. Sullivan,T. J. Sumner,I. Taboada,S. Tilav,N. van Eijndhoven,Wolfgang Wagner,C. Walck,R.-R Wang,C. H. Wiebusch,C. Wiedemann,R. Wischnewski,H. Wissing,Kurt Woschnagg,S. Yoshida +133 more
TL;DR: In this paper, a Monte Carlo study of the sensitivity of the planned IceCube detector to predicted fluxes of muon neutrinos at TeV to PeV energies is presented.
Journal ArticleDOI
Muon Track Reconstruction and Data Selection Techniques in AMANDA
J. Ahrens,Xinhua Bai,R. C. Bay,S. W. Barwick,T. Becka,J. K. Becker,K.-H. Becker,Elisa Bernardini,D. Bertrand,A. Biron,D. J. Boersma,S. Böser,Olga Botner,Adam Bouchta,Othmane Bouhali,T. Burgess,Staffan Carius,T. Castermans,Dmitry Chirkin,B. Collin,Jan Conrad,Jodi Cooley,D. F. Cowen,Anna Davour,C. De Clercq,T. DeYoung,Paolo Desiati,J. P Dewulf,P. Ekström,T. Feser,Markus Gaug,Thomas K. Gaisser,R. Ganugapati,Heiko Geenen,L. Gerhardt,Axel Groß,A. Goldschmidt,Allan Hallgren,Francis Halzen,Kael Hanson,R. Hardtke,Torsten Harenberg,T. Hauschildt,K. Helbing,M. Hellwig,P. Herquet,G. C. Hill,D. Hubert,B. Hughey,P. O. Hulth,K. Hultqvist,S. Hundertmark,Janet Jacobsen,Albrecht Karle,M. Kestel,L. Köpke,Marek Kowalski,K. Kuehn,J. I. Lamoureux,H. Leich,Matthias Leuthold,P. Lindahl,I. Liubarsky,James Madsen,Pawel Marciniewski,H. S. Matis,C. P. McParland,T. Messarius,Y. Minaeva,P. Miocinovic,P. C. Mock,R. Morse,K. Münich,J. W. Nam,R. Nahnhauer,T. Neunhöffer,P. Niessen,D. R. Nygren,Hakki Ögelman,Ph. Olbrechts,C. Pérez de los Heros,A. C. Pohl,R. Porrata,P. B. Price,Gerald Przybylski,K. Rawlins,Elisa Resconi,Wolfgang Rhode,M. Ribordy,S. Richter,J. Rodríguez Martino,D. Ross,H. G. Sander,K. Schinarakis,S. Schlenstedt,T. O. B. Schmidt,David A. Schneider,R. Schwarz,A. Silvestri,M. Solarz,Glenn Spiczak,Christian Spiering,Michael Stamatikos,D. Steele,P. Steffen,R. G. Stokstad,K. H. Sulanke,Ole Streicher,I. Taboada,L. Thollander,S. Tilav,Wolfgang Wagner,C. Walck,Yajun Wang,C. H. Wiebusch,C. Wiedemann,R. Wischnewski,H. Wissing,Kurt Woschnagg,G. B. Yodh +119 more
TL;DR: In this paper, the authors describe different methods of reconstruction, which have been successfully implemented within AMANDA, and optimize the reconstruction performance and rejecting background for a typical analysis procedure the direction of tracks are reconstructed with about 2° accuracy.
Journal ArticleDOI
Search for extraterrestrial point sources of neutrinos with AMANDA-II.
J. Ahrens,Xinhua Bai,S. W. Barwick,T. Becka,J.K. Becker,Elisa Bernardini,D. Bertrand,Freddy Binon,A. Biron,D. J. Boersma,S. Böser,Olga Botner,Adam Bouchta,Othmane Bouhali,T. Burgess,Staffan Carius,T. Castermans,A. Chen,Dmitry Chirkin,B. Collin,Jan Conrad,Jodi Cooley,D. F. Cowen,Anna Davour,C. De Clercq,T. DeYoung,Paolo Desiati,J. P Dewulf,P. Ekström,T. Feser,Thomas K. Gaisser,R. Ganugapati,M. Gaug,Heiko Geenen,L. Gerhardt,A. Goldschmidt,A. Groß,Allan Hallgren,Francis Halzen,Kael Hanson,R. Hardtke,Torsten Harenberg,T. Hauschildt,K. Helbing,M. Hellwig,Ph. Herquet,G. C. Hill,D. Hubert,B. Hughey,P. O. Hulth,K. Hultqvist,S. Hundertmark,Janet Jacobsen,Albrecht Karle,M. Kestel,L. Köpke,Marek Kowalski,K. Kuehn,Julie Lamoureux,H. Leich,Matthias Leuthold,P. Lindahl,I. Liubarsky,James Madsen,Kyle T. Mandli,Pawel Marciniewski,H. S. Matis,C. P. McParland,T. Messarius,Y. Minaeva,P. Miocinovic,R. Morse,K. Munich,R. Nahnhauer,T. Neunhöffer,P. Niessen,D. R. Nygren,Hakki Ögelman,Philip Olbrechts,C. Pérez de los Heros,A. C. Pohl,R. Porrata,P. B. Price,Gerald Przybylski,K. Rawlins,Elisa Resconi,Wolfgang Rhode,M. Ribordy,S. Richter,J. Rodríguez Martino,H. G. Sander,K. Schinarakis,S. Schlenstedt,T. O. B. Schmidt,David A. Schneider,R. Schwarz,A. Silvestri,M. Solarz,Glenn Spiczak,Christian Spiering,Michael Stamatikos,D. Steele,P. Steffen,R. G. Stokstad,K. H. Sulanke,I. Taboada,L. Thollander,S. Tilav,Wolfgang Wagner,C. Walck,Yajun Wang,Christopher Wiebusch,C. Wiedemann,R. Wischnewski,H. Wissing,Kurt Woschnagg,G. B. Yodh +116 more
TL;DR: It is shown that AMANDA-II has achieved the sensitivity required to probe known TeV gamma-ray sources such as the blazar Markarian 501 in its 1997 flaring state at a level where neutrino and Gamma-ray fluxes are equal.
Journal ArticleDOI
Flux limits on ultra high energy neutrinos with AMANDA-B10
Markus Ackermann,J. Ahrens,H. Albrecht,D.W. Atlee,Xinhua Bai,R. C. Bay,M. Bartelt,S. W. Barwick,T. Becka,K.-H. Becker,J. K. Becker,Elisa Bernardini,D. Bertrand,D. J. Boersma,S. Böser,Olga Botner,Adam Bouchta,Othmane Bouhali,James E. Braun,C.P. Burgess,T. Burgess,T. Castermans,Dmitry Chirkin,T. Coarasa,B. Collin,Jan Conrad,Jodi Cooley,D. F. Cowen,Anna Davour,C. De Clercq,T. DeYoung,Paolo Desiati,P. Ekström,T. Feser,Thomas K. Gaisser,R. Ganugapati,Heiko Geenen,L. Gerhardt,A. Goldschmidt,Axel Groß,Allan Hallgren,Francis Halzen,Kael Hanson,D. Hardtke,R. Hardtke,Torsten Harenberg,T. Hauschildt,K. Helbing,M. Hellwig,P. Herquet,G. C. Hill,J. Hodges,D. Hubert,B. Hughey,P. O. Hulth,K. Hultqvist,S. Hundertmark,Janet Jacobsen,Karl-Heinz Kampert,Albrecht Karle,J. L. Kelley,M. Kestel,L. Köpke,Marek Kowalski,M. Krasberg,K. Kuehn,H. Leich,Matthias Leuthold,Johan Lundberg,James Madsen,Kyle T. Mandli,Pawel Marciniewski,H. S. Matis,C. P. McParland,T. Messarius,Y. Minaeva,P. Miocinovic,R. Morse,S. M. Movit,K. Münich,R. Nahnhauer,J. W. Nam,T. Neunhöffer,P. Niessen,D. R. Nygren,Hakki Ögelman,Ph. Olbrechts,C. Pérez de los Heros,A. C. Pohl,R. Porrata,P. B. Price,Gerald Przybylski,K. Rawlins,Elisa Resconi,Wolfgang Rhode,M. Ribordy,S. Richter,J. Rodríguez Martino,D. Rutledge,H. G. Sander,K. Schinarakis,S. Schlenstedt,David A. Schneider,R. Schwarz,A. Silvestri,M. Solarz,Glenn Spiczak,Christian Spiering,Michael Stamatikos,D. Steele,P. Steffen,R. G. Stokstad,K. H. Sulanke,I. Taboada,O. Tarasova,L. Thollander,S. Tilav,L. C. Voicu,Wolfgang Wagner,C. Walck,M. Walter,Yi Wang,C. H. Wiebusch,R. Wischnewski,H. Wissing,Kurt Woschnagg,G. B. Yodh +126 more
TL;DR: In this article, the AMANDA-B10 detector was searched for a diffuse flux of neutrinos of all flavors with energies above 10 16 −eV, and no excess events above the background expectation were observed.