C
Christian Schill
Researcher at University of Freiburg
Publications - 135
Citations - 7192
Christian Schill is an academic researcher from University of Freiburg. The author has contributed to research in topics: Compass & Detector. The author has an hindex of 47, co-authored 130 publications receiving 6505 citations. Previous affiliations of Christian Schill include Fraunhofer Society & International Institute for Applied Systems Analysis.
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Journal ArticleDOI
Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target.
A. Airapetian,N. Akopov,Z. Akopov,M. Amarian,A. Andrus,E. C. Aschenauer,W. Augustyniak,R.O. Avakian,A. Avetissian,E. Avetissian,Alessandro Bacchetta,P. Bailey,D. Balin,M. Beckmann,S. Belostotski,N. Bianchi,H. P. Blok,H. Böttcher,A. Borissov,A. Borysenko,M. Bouwhuis,A. Brüll,V. Bryzgalov,G. P. Capitani,M. Cappiluppi,T. Chen,G. Ciullo,M. Contalbrigo,P. F. Dalpiaz,R. De Leo,M. Demey,L. De Nardo,E. De Sanctis,E. Devitsin,P. Di Nezza,Michael Düren,M. Ehrenfried,A. Elalaoui-Moulay,G. Elbakian,Frank Ellinghaus,U. Elschenbroich,Riccardo Fabbri,Alessandra Fantoni,A. Fechtchenko,L. Felawka,S. Frullani,G. Gapienko,V. A. Gapienko,F. Garibaldi,K. Garrow,G. Gavrilov,V. Gharibyan,O. Grebeniouk,I. M. Gregor,Cynthia Marie Hadjidakis,K. Hafidi,M. Hartig,D. Hasch,M. Henoch,W.H.A. Hesselink,A. Hillenbrand,M. Hoek,Y. Holler,B. Hommez,Ivana Hristova,G. Iarygin,Alexander Ilyichev,A. Ivanilov,Andrey V. Izotov,H. E. Jackson,A. Jgoun,Ralf Kaiser,E. R. Kinney,A. Kisselev,Tsutomu Kobayashi,M. Kopytin,V. A. Korotkov,V. A. Kozlov,B. Krauss,V. G. Krivokhijine,L. Lagamba,L. Lapikás,A. Laziev,P. Lenisa,P. Liebing,L. A. Linden-Levy,Wolfgang Lorenzon,H. Y. Lu,J. Lu,S. Lu,B. Q. Ma,B. Maiheu,Naomi C R Makins,Y. J. Mao,B. Marianski,H. Marukyan,F. Masoli,V. Mexner,N. Meyners,T. Michler,O. Mikloukho,C. A. Miller,Y. Miyachi,V. Muccifora,A. Nagaitsev,Eugenio Nappi,Y. Naryshkin,A. Nass,M. Negodaev,W.-D. Nowak,K. Oganessyan,H. Ohsuga,A. Osborne,N. Pickert,D. H. Potterveld,Martin Raithel,D. Reggiani,P. E. Reimer,A. Reischl,A. R. Reolon,C. Riedl,Klaus Rith,G. Rosner,A. Rostomyan,L. Rubacek,J. G. Rubin,Dirk Ryckbosch,Y. Salomatin,I. Sanjiev,I.A. Savin,Andreas Schäfer,Christian Schill,G. Schnell,K. P. Schüler,J. Seele,R. Seidl,B. Seitz,Rezo Shanidze,C. Shearer,T. A. Shibata,Vitaly Shutov,K. Sinram,W. Sommer,M. Stancari,M. Statera,E. Steffens,J. J. M. Steijger,Hasko Stenzel,J. Stewart,F. Stinzing,P. Tait,Hidekazu Tanaka,S. Taroian,B. Tchuiko,Adel Terkulov,A. Trzcinski,Michael Tytgat,Arne Vandenbroucke,P. B. van der Nat,G. van der Steenhoven,Y. Van Haarlem,Michel Vetterli,V. Vikhrov,Manuella Vincter,C. Vogel,J. Volmer,S. Wang,J. Wendland,J. Wilbert,G. V. Ybeles Smit,Y. X. Ye,Z. Ye,S. Yen,B. Zihlmann,P. Zupranski +174 more
TL;DR: Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polarization, and the Sivers asymmetry may be affected by exclusive vector meson production.
Journal ArticleDOI
Mapping global cropland and field size
Steffen Fritz,Linda See,Ian McCallum,Liangzhi You,A. Bun,Elena Moltchanova,Elena Moltchanova,Martina Duerauer,Fransizka Albrecht,Christian Schill,Christoph Perger,Petr Havlik,Aline Mosnier,Philip K. Thornton,Ulrike Wood-Sichra,Mario Herrero,Inbal Becker-Reshef,Christopher O. Justice,Matthew C. Hansen,Peng Gong,Sheta Abdel Aziz,Anna Cipriani,Anna Cipriani,Renato Cumani,Giuliano Cecchi,Giulia Conchedda,S.C. Ferreira,Adriana Gomez,Myriam Haffani,Francois Kayitakire,Jaiteh Malanding,Rick Mueller,Terence Newby,Andre Nonguierma,A Adeaga Olusegun,Simone Ortner,D. Ram Rajak,Jansle Vieira Rocha,Dmitry Schepaschenko,M. Schepaschenko,Alexey Terekhov,Alex Tiangwa,Christelle Vancutsem,Elodie Vintrou,Wu Wenbin,Marijn van der Velde,A. Dunwoody,Florian Kraxner,Michael Obersteiner +48 more
TL;DR: The first ever global field size map was produced at the same resolution as the IIASA-IFPRI cropland map based on interpolation of field size data collected via a Geo-Wiki crowdsourcing campaign.
Journal ArticleDOI
Geo-Wiki.Org: The Use of Crowdsourcing to Improve Global Land Cover
Steffen Fritz,Ian McCallum,Christian Schill,Christoph Perger,Roland Grillmayer,Frédéric Achard,Florian Kraxner,Michael Obersteiner +7 more
TL;DR: The Geo-Wiki Project is a global network of volunteers who wish to help improve the quality of global land cover maps, and volunteers are asked to review hotspot maps ofglobal land cover disagreement and determine, based on what they actually see in Google Earth and their local knowledge, if the land coverMaps are correct or incorrect.
Journal ArticleDOI
Geo-Wiki: An online platform for improving global land cover
Steffen Fritz,Ian McCallum,Christian Schill,Christoph Perger,Linda See,Dmitry Schepaschenko,Marijn van der Velde,Florian Kraxner,Michael Obersteiner +8 more
TL;DR: The components that comprise Geo-Wiki are outlined and how they are integrated in the architectural design, in particular the need to add a mechanism for feedback and interaction as part of community building, and theneed to address issues of data quality.
Journal ArticleDOI
Measurement of the Beam-Spin Azimuthal Asymmetry Associated with Deeply-Virtual Compton Scattering
A. Airapetian,N. Akopov,Z. Akopov,M. Amarian,E. C. Aschenauer,H. Avakian,R.O. Avakian,A. Avetissian,E. Avetissian,P. Bailey,B. Bains,V. Baturin,C. Baumgarten,M. Beckmann,S. Belostotski,S. Bernreuther,Nicola Bianchi,H. Böttcher,A. Borissov,Othmane Bouhali,M. Bouwhuis,Jeffrey Brack,S. Brauksiepe,W. Brückner,A. Brüll,I. Brunn,H. J. Bulten,G. P. Capitani,P. Chumney,Evaristo Cisbani,G. Ciullo,G.R. Court,P. F. Dalpiaz,R. De Leo,L. De Nardo,E. De Sanctis,D. De Schepper,E. Devitsin,P.K.A. de Witt Huberts,P. Di Nezza,M. Düren,M. Ehrenfried,G. Elbakian,Frank Ellinghaus,J. Ely,R. Fabbri,Alessandra Fantoni,A. Fechtchenko,L. Felawka,B. W. Filippone,H. Fischer,B. D. Fox,J. Franz,Salvatore Frullani,Y. Gärber,Franco Garibaldi,Erika Garutti,G. Gavrilov,V. Gharibyan,A. Golendukhin,G. Graw,O. Grebeniouk,P.W. Green,P.W. Green,L. G. Greeniaus,L. G. Greeniaus,A. Gute,W. Haeberli,K. Hafidi,M. Hartig,D. Hasch,D. Heesbeen,F.H. Heinsius,M. Henoch,Ralf Hertenberger,W.H.A. Hesselink,G. Hofman,Y. Holler,R. J. Holt,B. Hommez,G. Iarygin,Andrey V. Izotov,H. E. Jackson,A. Jgoun,Peter Jung,Ralf Kaiser,J. Kanesaka,E. R. Kinney,A. Kisselev,A. Kisselev,P. Kitching,Hiroaki Kobayashi,N. Koch,K. Königsmann,H. Kolster,V. A. Korotkov,E. Kotik,V. A. Kozlov,B. Krauss,V. G. Krivokhijine,G. S. Kyle,L. Lagamba,A. Laziev,P. Lenisa,P. Liebing,T. Lindemann,Wolfgang Lorenzon,Axel Maas,Naomi C R Makins,H. Marukyan,F. Masoli,M. McAndrew,K. McIlhany,K. McIlhany,F. Meissner,F. Meissner,F. Menden,N. Meyners,O. Mikloukho,C. A. Miller,C. A. Miller,Ross Milner,Valeria Muccifora,R. Mussa,A. Nagaitsev,Eugenio Nappi,Y. Naryshkin,A. Nass,K. Negodaeva,W.-D. Nowak,K. Oganessyan,Thomas O'Neill,B. R. Owen,S. F. Pate,S. Potashov,D. H. Potterveld,Martin Raithel,G. Rakness,V. Rappoport,R. P. Redwine,D. Reggiani,A. R. Reolon,Klaus Rith,D. Robinson,A. Rostomyan,M. Ruh,Dirk Ryckbosch,Yasuhiro Sakemi,I. Sanjiev,I. Sanjiev,F. Sato,I.A. Savin,C. Scarlett,Andreas Schäfer,Christian Schill,F. Schmidt,G. Schnell,K. P. Schüler,A. Schwind,J. Seibert,B. Seitz,T. A. Shibata,V. Shutov,M. C. Simani,A. Simon,K. Sinram,E. Steffens,J. J. M. Steijger,J. Stewart,J. Stewart,J. Stewart,U. Stosslein,K. Suetsugu,S. Taroian,Adel Terkulov,S. Tessarin,E. Thomas,B. Tipton,Michael Tytgat,G. M. Urciuoli,J. F. J. van den Brand,G. van der Steenhoven,R. Van de Vyver,J. van Hunen,Michel Vetterli,Michel Vetterli,V. Vikhrov,Manuella Vincter,J. Visser,C. Weiskopf,J. Wendland,J. Wendland,J. Wilbert,T. Wise,S. Yen,S. Yoneyama,H. Zohrabian +196 more
TL;DR: The beam-spin asymmetry in hard electroproduction of photons has been measured in this paper, where the data have been accumulated by the HERMES experiment at DESY using the HERA 27.6 GeV longitudinally polarized positron beam and an unpolarized hydrogen gas target.