R
Rolf Stassen
Researcher at Forschungszentrum Jülich
Publications - 109
Citations - 1582
Rolf Stassen is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Stochastic cooling & Beam (structure). The author has an hindex of 19, co-authored 108 publications receiving 1421 citations.
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Journal ArticleDOI
Abashian-Booth-Crowe Effect in Basic Double-Pionic Fusion: A New Resonance?
Patrik Adlarson,C. Adolph,W. Augustyniak,Vadim Baru,M. Bashkanov,Tomasz Bednarski,F. S. Bergmann,M. Berłowski,Himani Bhatt,K.-T. Brinkmann,M. Buescher,Hans Calén,H. Clement,D. Coderre,Eryk Czerwiński,E. Doroshkevich,C. Ekström,R. Engels,W. Erven,W. Eyrich,P. Fedorets,K. Foehl,Kjell Fransson,Frank Goldenbaum,P. Goslawski,K. Grigoryev,V. Grishina,Carl-Oscar Gullström,J. Hampe,Christoph Hanhart,Lena Heijkenskjöld,V. Hejny,F. Hinterberger,M. Hodana,Bo Höistad,Marek Jacewicz,Michał Janusz,A. Jany,Benedykt R. Jany,L. Jarczyk,Tord Johansson,B. Kamys,Günter Kemmerling,O. Khakimova,A. Khoukaz,Stanisław Kistryn,J. Klaja,Harald Kleines,B. Kłos,F. Kren,Wojciech Krzemien,P. Kulessa,Sven Kullander,Andrzej Kupsc,K. Lalwani,B. Lorentz,A. Magiera,R. Maier,Pavel Marciniewski,B. Mariański,M. Mikirtychiants,Paweł Moskal,H. P. Morsch,Basanta Kumar Nandi,Szymon Niedzwiecki,H. Ohm,Annika Passfeld,C. Pauly,E. Perez del Rio,Y. Petukhov,N.M. Piskunov,Pawel Plucinski,P. Podkopał,A. Povtoreyko,D. Prasuhn,A. Pricking,K. Pysz,T. Rausmann,C. F. Redmer,James Ritman,Ankhi Roy,Roger Ruber,Zbigniew Rudy,S. Sawant,S. Schadmand,Alexander Schmidt,W. Schroeder,T. Sefzick,V. Serdyuk,N. Shah,M. Siemaszko,R. Siudak,T. Skorodko,Magdalena Skurzok,Jerzy Smyrski,V. Sopov,Rolf Stassen,J. Stepaniak,G. Sterzenbach,Hans Stockhorst,H. Stroeher,Antoni Szczurek,A. Taeschner,T. Tolba,A. Trzciński,R. Varma,P. Vlasov,G. J. Wagner,W. Węglorz,A. Winnemoeller,Andreas Wirzba,M. Wolke,Aleksandra Wrońska,P. Wuestner,P. Wurm,X. Yuan,L. Yurev,J. Zabierowski,C. Zheng,Marcin Zieliński,W. Zipper,Jozef Zlomanczuk,P. Zupranski +122 more
TL;DR: An exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ( 0)π(0) over the full energy region of the ABC effect reveals a pronounced low-mass enhancement in the ππ-invariant mass spectrum.
WASA-at-COSY Collaboration
P. Adlarson,W. Augustyniak,W. Bardan,M. Bashkanov,Himani Bhatt,A.E. Bondar,Markus Büscher,Hans Calén,H. Clement,D. Coderre,K. Demmich,E. Doroshkevich,R. Engels,A. Erven,W. Erven,W. Eyrich,P. Fedorets,Kjell Fransson,Frank Goldenbaum,P. Goslawski,A. Goswami,K. Grigoryev,C. Hanhart,F. Hauenstein,V. Hejny,Bo Höistad,N. Hüsken,L. Jarczyk,Tord Johansson,B. Kamys,Günter Kemmerling,A. Khoukaz,St. Kistryn,Harald Kleines,P. Kulessa,Alexei Kuzmin,K. Lalwani,D. Lersch,B. Lorentz,A. Magiera,R. Maier,P. Marciniewski,M. Mikirtychiants,Paweł Moskal,H. Ohm,E. Perez del Rio,P. Podkopał,D. Prasuhn,A. Pricking,D. Pszczel,K. Pysz,A. Pyszniak,J. Ritman,Ankhi Roy,Zbigniew Rudy,S. Sawant,S. Schadmand,T. Sefzick,V. Serdyuk,B. Shwartz,R. Siudak,T. Skorodko,Magdalena Skurzok,Jerzy Smyrski,V. Sopov,Rolf Stassen,J. Stepaniak,E. Stephan,G. Sterzenbach,Hans Stockhorst,Antoni Szczurek,A. Täschner,R. Varma,Magnus Wolke +73 more
Journal ArticleDOI
Search for a dark photon in the π 0 →e + e − γ decay
P. Adlarson,W. Augustyniak,W. Bardan,M. Bashkanov,F. S. Bergmann,M. Berłowski,Himani Bhatt,A. Bondar,Markus Büscher,Hans Calén,Izabela Ciepał,H. Clement,D. Coderre,D. Coderre,Eryk Czerwiński,K. Demmich,E. Doroshkevich,Ralf Engels,W. Erven,W. Eyrich,P. Fedorets,K. Föhl,Kjell Fransson,Frank Goldenbaum,P. Goslawski,A. Goswami,K. Grigoryev,K. Grigoryev,C.-O. Gullström,F. Hauenstein,Lena Heijkenskjöld,V. Hejny,F. Hinterberger,M. Hodana,M. Hodana,Bo Höistad,A. Jany,Benedykt R. Jany,L. Jarczyk,T. Johansson,B. Kamys,Günter Kemmerling,Ferdous Khan,A. Khoukaz,Stanisław Kistryn,J. Klaja,Harald Kleines,Di. Kirillov,B. Kłos,M. Krapp,Wojciech Krzemien,P. Kulessa,A. Kupść,A. Kuzmin,K. Lalwani,D. Lersch,L. Li,B. Lorentz,A. Magiera,R. Maier,Pawel Marciniewski,B. Mariański,Ulf-G. Meißner,M. Mikirtychiants,H. P. Morsch,Paweł Moskal,Basanta Kumar Nandi,H. Ohm,I. Ozerianska,E. Perez del Rio,N.M. Piskunov,P. Pluciński,P. Podkopał,P. Podkopał,D. Prasuhn,A. Pricking,D. Pszczel,K. Pysz,A. Pyszniak,A. Pyszniak,C. F. Redmer,James Ritman,James Ritman,Ankhi Roy,Zbigniew Rudy,S. Sawant,S. Schadmand,Alexander Schmidt,T. Sefzick,V. Serdyuk,V. Serdyuk,N. Shah,B. Shwartz,M. Siemaszko,R. Siudak,T. Skorodko,Magdalena Skurzok,Jerzy Smyrski,V. Sopov,Rolf Stassen,J. Stepaniak,E. Stephan,G. Sterzenbach,Hans Stockhorst,H. Ströher,Antoni Szczurek,T. Tolba,A. Trzcinski,R. Varma,G. J. Wagner,W. Wȩglorz,Andreas Wirzba,Magnus Wolke,Aleksandra Wrońska,P. Wüstner,P. Wurm,Akira Yamamoto,J. Zabierowski,Marcin Zieliński,W. Zipper,Jozef Zlomanczuk,P. Żuprański,M. Żurek +122 more
TL;DR: The presently world largest data sample for π 0 → γ e + e − decays studies containing nearly 5 × 10 5 events was collected using the WASA detector at COSY as mentioned in this paper.
Journal ArticleDOI
New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments
D. Eversmann,V. Hejny,F. Hinder,A.K. Kacharava,J. Pretz,Frank Rathmann,Martin Rosenthal,F. Trinkel,Serge Andrianov,W. Augustyniak,Z. Bagdasarian,M. Bai,Werner Bernreuther,Susanna Bertelli,Martin Berz,J. Bsaisou,S. Chekmenev,D. Chiladze,G. Ciullo,M. Contalbrigo,J. de Vries,S. Dymov,R. Engels,F.M. Esser,Olaf Felden,M. Gaisser,Ralf Gebel,H. Glückler,Frank Goldenbaum,K. Grigoryev,D. Grzonka,G. Guidoboni,C. Hanhart,Dirk Heberling,N. Hempelmann,J. Hetzel,R. Hipple,D. Hölscher,Andrew Ivanov,V. Kamerdzhiev,B. Kamys,I. Keshelashvili,A. Khoukaz,Ivan Koop,Hans-Joachim Krause,S. Krewald,A. I. Kulikov,Andreas Lehrach,Paolo Lenisa,N.L. Lomidze,B. Lorentz,P. Maanen,G.G. Macharashvili,G.G. Macharashvili,A. Magiera,Rudolf Maier,Kyoko Makino,B. Mariański,D. Mchedlishvili,Ulf-G. Meißner,Ulf-G. Meißner,S. Mey,A. Nass,G. Natour,Nikolai N. Nikolaev,M. S. Nioradze,Andreas Nogga,K. Nowakowski,A. Pesce,D. Prasuhn,J. Ritman,Zbigniew Rudy,A. Saleev,Y. Semertzidis,Y. Senichev,V. Shmakova,Alexander J. Silenko,Alexander J. Silenko,J. Slim,H. Soltner,Achim Stahl,Rolf Stassen,M. Statera,E. J. Stephenson,H. Stockhorst,H. Straatmann,H. Ströher,M. D. Tabidze,R. Talman,P. Thörngren Engblom,P. Thörngren Engblom,A. Trzciński,Y. u. Uzikov,Yu. Valdau,Yu. Valdau,E. Valetov,A. Vassiliev,C. Weidemann,Colin Wilkin,Andreas Wirzba,Aleksandra Wrońska,P. Wüstner,M. Zakrzewska,P. Zupranski,D. Zyuzin +104 more
TL;DR: The presented method is a new precision tool for accelerator physics; controlling the spin motion of particles to high precision is mandatory, in particular, for the measurement of electric dipole moments of charged particles in a storage ring.
Journal ArticleDOI
Neutron-proton scattering in the context of the d*(2380) resonance
P. Adlarson,W. Augustyniak,W. Bardan,M. Bashkanov,F. S. Bergmann,M. Berłowski,Himani Bhatt,Markus Büscher,Hans Calén,Izabela Ciepał,H. Clement,D. Coderre,Eryk Czerwiński,K. Demmich,E. Doroshkevich,Ralf Engels,A. Erven,W. Erven,W. Eyrich,P. Fedorets,K. Föhl,K. Fransson,Frank Goldenbaum,P. Goslawski,A. Goswami,K. Grigoryev,C.-O. Gullström,F. Hauenstein,Lena Heijkenskjöld,V. Hejny,M. Hodana,Bo Höistad,N. Hüsken,A. Jany,Benedykt R. Jany,L. Jarczyk,T. Johansson,B. Kamys,Günter Kemmerling,Ferdous Khan,A. Khoukaz,Di. Kirillov,Stanisław Kistryn,Harald Kleines,B. Kłos,M. Krapp,Wojciech Krzemien,P. Kulessa,A. Kupść,K. Lalwani,D. Lersch,B. Lorentz,A. Magiera,R. Maier,Pawel Marciniewski,B. Mariański,M. Mikirtychiants,H. P. Morsch,Paweł Moskal,H. Ohm,I. Ozerianska,E. Perez del Rio,N.M. Piskunov,P. Podkopał,D. Prasuhn,A. Pricking,D. Pszczel,K. Pysz,A. Pyszniak,C. F. Redmer,J. Ritman,Ankhi Roy,Zbigniew Rudy,S. Sawant,S. Schadmand,T. Sefzick,V. Serdyuk,R. Siudak,T. Skorodko,Magdalena Skurzok,Jerzy Smyrski,V. Sopov,Rolf Stassen,J. Stepaniak,E. Stephan,G. Sterzenbach,Hans Stockhorst,H. Ströher,Antoni Szczurek,A. Täschner,A. Trzciński,R. Varma,G. J. Wagner,Magnus Wolke,Aleksandra Wrońska,P. Wüstner,P. Wurm,Akira Yamamoto,L. Yurev,J. Zabierowski,Marcin Zieliński,A. Zink,Jozef Zlomanczuk,P. Żuprański,M. Żurek,Ron L. Workman,W. J. Briscoe,I. I. Strakovsky +107 more
TL;DR: In this article, quasifree polarized neutron-proton scattering in the region of the recently observed d* resonance structure is obtained by exclusive and kinematically complete high-statistics measurem.