Studying the Possibility of Dynamic Spin Handling for Polarized Protons and Deuterons at the NICA Accelerator Complex
https://doi.org/10.25205/2541-9447-2024-19-1-5-15
Abstract
At the Joint Institute for Nuclear Research together with the Institute of Nuclear Physics named after G. I. Budker SB RAS plans to carry out experiments with NICA accelerator complex dedicated to spin effects studying in polarized protons and deuterons collisions. As addendum to the spin physics program, it is being planned experiment by testing P-parity violation in pd-scattering at target. To carry out this experiment, it has to study the possibility of obtaining a p or d beam with dynamically stable longitudinal polarization with different signs. In this paper, we consider investigation of the organization for such configuration of spin using RF rotators in the Nuclotron ring. The spin flip process for deuterons and protons beam has simulated taking into account synchrotron oscillations and energy diffusion. Based on the obtained results, conclusions about opportunity of gaining dynamically stable longitudinal polarization for this way have done.
About the Authors
E. V. BedarevRussian Federation
Egor V. Bedarev - Research Engineer
Novosibirsk
I. A. Koop
Russian Federation
Ivan A. Koop - Doctor of Physical and Mathematical Sciences
Novosibirsk
A. V. Otboev
Russian Federation
Alexey V. Otboev - Researcher
Novosibirsk
Yu. M. Shatunov
Russian Federation
Yuri M. Shatunov - Doctor of Physical and Mathematical Sciences
Novosibirsk
References
1. Savin I. A., Efremov A. V., Peshekhonov D. V., Kovalenko A. D., Teryaev O. V., Shevchenko O. Yu., Nagajcev A. P., Guskov A. V., Kukhtin V. V., Topilin N. D. et al. Spin Physics Experiments at NICA SPD with polarized proton and deuteron beams. EPJ Web of Conferences: 4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (TRANSVERSITY 2014), 2015, vol. 85, id. 02039.
2. Koop I. A., Milstein A. I., Nikolaev N. N. et al. Tests of Fundamental Discrete Symmetries at the NICA Facility: Addendum to the Spin Physics Programme. Physics of Particles and Nuclei, 2021, vol. 52, pp. 549–554.
3. Gardner S., Haxton W. C., and Holstein Barry R. A New Paradigm for Hadronic Parity Nonconservation and Its Experimental Implications. Annual Review of Nuclear and Particle Science, 2017, vol. 67, pp. 69–95.
4. Kistryn S., et al. Precision Measurement of Parity Nonconservation in Proton-Proton Scattering at 45 MeV. Phys. Rev. Lett., 1987, vol. 58, pp. 1616–1619.
5. Lockyer N. A. et al. Parity nonconservation in proton nucleus scattering at 6 GeV/c. Phys. Rev. D, 1984, vol. 30, pp. 860–871.
6. Grosnick D. P. et al. Measurement of the diff erences in the total cross section for antiparallel and parallel longitudinal spins and a measurement of parity nonconservation with incident polarized protons and antiprotons at 200 GeV/c. Phys. Rev. D, 1997, vol. 55, pp. 1159–1187.
7. Milstein A. I., Nikolaev N. N., Salnikov S. G. Parity Violation in Proton-Deuteron Scattering. JETP Letters, 2020, vol. 112, no. 6, pp. 332–336.
8. Koop I., Shatunov Yu. Spin fl ip by RF-fi eld at storage rings with siberian snakes. AIP Conf. Proc. 1 September 1995, USA, 1995, vol. 343, pp. 317–320.
9. Cheng H. Y., Lai S. N. Spin asymmetry in proton proton collisions as a probe of sea and gluon polarization in a proton. Phys. Rev. D, 1990, vol. 41, pp. 91–102.
10. Bagdasarian Z. et al. Measuring the polarization of a rapidly precessing deuteron beam. Phys. Rev. ST Accel. Beams, 2014, vol. 17, pp. 052803.
11. Froissart M., Stora R. Depolarisation d’un faisceau de protons polarises dans un synchrotron. Nuclear Instruments and Methods, 1960, vol. 7, iss. 3, pp. 297–305.
12. Кондратенко А. М. Поляризованные пучки в накопителях и циклических ускорителях. Дисс. … д-ра физ.-мат. наук, 01.04.02 – теоретическая и математическая физика, ИЯФ СО АН СССР. 1982.
13. Perevedentsev E. A., Shatunov Yu. M., Ptitsyn V. I. Spin orbital function formalism and ASPIRRIN code. Proc. of 15th Int. spin physics symp. (SPIN 2002), Long Island, New York, USA, 2002, pp. 761–765.
14. Chao A. W., Tigner M. et al. Handbook of Accelerator Physics and Engineering. Second Ed. World Scientifi c Co. Pte. Ltd., Singapore, 2013, p. 155.
Review
For citations:
Bedarev E.V., Koop I.A., Otboev A.V., Shatunov Yu.M. Studying the Possibility of Dynamic Spin Handling for Polarized Protons and Deuterons at the NICA Accelerator Complex. SIBERIAN JOURNAL OF PHYSICS. 2024;19(1):5-15. (In Russ.) https://doi.org/10.25205/2541-9447-2024-19-1-5-15