New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments

D Eversmann¹, V Hejny², F Hinder^{1

2}, A Kacharava², J Pretz^{1

3}, F Rathmann², M Rosenthal^{1

2}, F Trinkel^{1

2}, S Andrianov⁴, W Augustyniak⁵, Z Bagdasarian^{2

6}, M Bai^{2

3}, W Bernreuther^{3

7}, S Bertelli⁸, M Berz⁹, J Bsaisou^{2

10}, S Chekmenev¹, D Chiladze^{2

6}, G Ciullo⁸, M Contalbrigo⁸, J de Vries^{2

10}, S Dymov^{2

11}, R Engels², F M Esser¹², O Felden², M Gaisser¹³, R Gebel², H Glückler¹², F Goldenbaum², K Grigoryev¹, D Grzonka², G Guidoboni⁸, C Hanhart^{2

10}, D Heberling^{3

14}, N Hempelmann¹, J Hetzel², R Hipple⁹, D Hölscher¹⁴, A Ivanov⁴, V Kamerdzhiev², B Kamys¹⁵, I Keshelashvili², A Khoukaz¹⁶, I Koop¹⁷, H-J Krause¹⁸, S Krewald², A Kulikov¹¹, A Lehrach^{2

3}, P Lenisa⁸, N Lomidze⁶, B Lorentz², P Maanen¹, G Macharashvili^{6

11}, A Magiera¹⁵, R Maier^{2

3}, K Makino⁹, B Mariański⁵, D Mchedlishvili^{2

6}, Ulf-G Meißner^{2

3

10

19}, S Mey^{1

2}, A Nass², G Natour^{3

12}, N Nikolaev²⁰, M Nioradze⁶, A Nogga^{2

10}, K Nowakowski¹⁵, A Pesce⁸, D Prasuhn², J Ritman^{2

3}, Z Rudy¹⁵, A Saleev², Y Semertzidis¹³, Y Senichev², V Shmakova¹¹, A Silenko^{21

22}, J Slim¹⁴, H Soltner¹², A Stahl^{1

3}, R Stassen², M Statera⁸, E Stephenson²³, H Stockhorst², H Straatmann¹², H Ströher^{2

3}, M Tabidze⁶, R Talman²⁴, P Thörngren Engblom^{8

25}, A Trzciński⁵, Yu Uzikov¹¹, Yu Valdau^{19

26}, E Valetov⁹, A Vassiliev²⁶, C Weidemann⁸, C Wilkin²⁷, A Wirzba^{2

10}, A Wrońska¹⁵, P Wüstner¹², M Zakrzewska¹⁵, P Zuprański⁵, D Zyuzin²; JEDI collaboration

Affiliations

¹ III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany.
² Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
³ JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany.
⁴ Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia.
⁵ Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland.
⁶ High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia.
⁷ Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany.
⁸ University of Ferrara and INFN, 44100 Ferrara, Italy.
⁹ Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
¹⁰ Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹¹ Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
¹² Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹³ Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
¹⁴ Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany.
¹⁵ Institute of Physics, Jagiellonian University, 30348 Cracow, Poland.
¹⁶ Institut für Kernphysik, Universität Münster, 48149 Münster, Germany.
¹⁷ Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia.
¹⁸ Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹⁹ Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
²⁰ L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia.
²¹ Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus.
²² Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
²³ Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA.
²⁴ Cornell University, Ithaca, New York 14850, USA.
²⁵ Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden.
²⁶ Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia.
²⁷ Physics and Astronomy Department, UCL, London, WC1E 6BT, United Kingdom.

PMID: 26371657
DOI: 10.1103/PhysRevLett.115.094801

Free article

New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments

D Eversmann et al. Phys Rev Lett. 2015.

Free article

. 2015 Aug 28;115(9):094801.

doi: 10.1103/PhysRevLett.115.094801. Epub 2015 Aug 26.

Authors

Affiliations

¹ III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany.
² Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
³ JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany.
⁴ Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia.
⁵ Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland.
⁶ High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia.
⁷ Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany.
⁸ University of Ferrara and INFN, 44100 Ferrara, Italy.
⁹ Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
¹⁰ Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹¹ Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
¹² Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹³ Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
¹⁴ Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany.
¹⁵ Institute of Physics, Jagiellonian University, 30348 Cracow, Poland.
¹⁶ Institut für Kernphysik, Universität Münster, 48149 Münster, Germany.
¹⁷ Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia.
¹⁸ Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany.
¹⁹ Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
²⁰ L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia.
²¹ Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus.
²² Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
²³ Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA.
²⁴ Cornell University, Ithaca, New York 14850, USA.
²⁵ Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden.
²⁶ Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia.
²⁷ Physics and Astronomy Department, UCL, London, WC1E 6BT, United Kingdom.

PMID: 26371657
DOI: 10.1103/PhysRevLett.115.094801

Abstract

A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune-defined as the number of spin precessions per turn-is given by ν(s)=γG (γ is the Lorentz factor, G the gyromagnetic anomaly). At 970 MeV/c, the deuteron spins coherently precess at a frequency of ≈120 kHz in the Cooler Synchrotron COSY. The spin tune is deduced from the up-down asymmetry of deuteron-carbon scattering. In a time interval of 2.6 s, the spin tune was determined with a precision of the order 10^{-8}, and to 1×10^{-10} for a continuous 100 s accelerator cycle. This renders the presented method 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.

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New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments

Affiliations

New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Research Materials