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Scaling Behavior of Spectra of Protons, Deuterons, and Tritons Produced with High Transverse Momenta in pA and 12CA Collisions

  • Fields, Particles, and Nuclei
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Abstract

The first data on the yield of the lightest nuclear fragments (protons p, deuterons d, and tritons t) with high transverse momenta pT at an angle of 40° in the laboratory reference frame from nuclear targets bombarded by 50-GeV/c protons and 20A-GeV/c carbon nuclei obtained in the SPIN experiment (IHEP, Protvino, Russia) have been reported. It has been shown that the pA and CA data can be described within a common scaling approach, which possibly indicates that the mechanism of formation of high-pT nuclear fragments is common for these reactions.

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Acknowledgments

We are grateful to the IHEP directorate for support of this investigation and to the staffs of the accelerator and beam divisions for efficient operation of the U70 accelerator and eighth beam channel. We also grateful to A.T. Golovin for invaluable technical support of the preparation of the SPIN setup for measurements.

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Correspondence to V. A. Gapienko.

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Russian Text © The Author(s), 2020, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2020, Vol. 111, No. 5, pp. 291–294.

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Antonov, N.N., Baldin, A.A., Viktorov, V.A. et al. Scaling Behavior of Spectra of Protons, Deuterons, and Tritons Produced with High Transverse Momenta in pA and 12CA Collisions. Jetp Lett. 111, 251–254 (2020). https://doi.org/10.1134/S0021364020050069

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  • DOI: https://doi.org/10.1134/S0021364020050069

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