Study of collective flows of protons and $ \pi^{{-}}_{}$ π - -mesons in p+C, Ta and He+Li, C collisions at momenta of 4.2, 4.5 and 10 AGeV/c

Chkhaidze, L.; Chlachidze, G.; Djobava, T.; Galoyan, A.; Kharkhelauri, L.; Togoo, R.; Uzhinsky, V.

doi:10.1140/epja/i2016-16351-3

Title: Study of collective flows of protons and $$ \pi^{{-}}_{}$$ π - -mesons in p+C, Ta and He+Li, C collisions at momenta of 4.2, 4.5 and 10 AGeV/c

Journal Article · Tue Nov 01 00:00:00 EDT 2016 · European Physical Journal. A

DOI:https://doi.org/10.1140/epja/i2016-16351-3· OSTI ID:1367909

Chkhaidze, L. ^[1]; Chlachidze, G. ^[2]; Djobava, T. ^[1]; Galoyan, A. ^[3]; Kharkhelauri, L. ^[1]; Togoo, R. ^[4]; Uzhinsky, V. ^[5]

Tbilisi State Univ., Tbilisi (Georgia). High Energy Physics Inst.
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation). Veksler and Baldin Lab. of High Energy Physics
Mongolian Academy of Sciences, Ulan Bator (Mongolia). Inst. of Physics and Technology
Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation). Lab. of Information Technologies

Collective flows of protons and $$\pi^{-}$$ -mesons are studied at the momenta of 4.2, 4.5 and 10AGeV/c for p+C, Ta and He+Li, C interactions. The data were obtained from the streamer chamber (SKM-200-GIBS) and from the Propane Bubble Chamber (PBC-500) systems utilized at JINR. A method of Danielewicz and Odyniec has been employed in determining a directed transverse flow of particles. The values of the transverse flow parameter and the strength of the anisotropic emission were defined for each interacting nuclear pair. It is found that the directed flows of protons and pions decrease with increasing the energy and the mass numbers of colliding nucleus pairs. The $$ \pi^{{-}}_{}$$ -meson and proton flows exhibit opposite directions in all studied interactions, and the flows of protons are directed in the reaction plane. Lastly, the Ultra-relativistic Quantum Molecular Dynamical Model (UrQMD) coupled with the Statistical Multi-fragmentation Model (SMM), satisfactorily describes the obtained experimental results.

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Research Organization:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359; DI/38/6-200/13

OSTI ID:: 1367909

Report Number(s):: FERMILAB-PUB-16-698-TD; arXiv:1602.04029; 1421433

Journal Information:: European Physical Journal. A, Vol. 52, Issue 11; ISSN 1434-6001

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 1 work

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