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Study of the dp-elastic scattering at energies 650, 750 and 1000 Mev/nucleon

Study of the dp-elastic scattering at energies 650, 750 and 1000 Mev/nucleon. A.A Terekhin et al. Joint Institute for Nuclear Research, Dubna, Russia. HS’ 201 3. Introduction

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Study of the dp-elastic scattering at energies 650, 750 and 1000 Mev/nucleon

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  1. Study of the dp-elastic scattering at energies 650, 750 and 1000 Mev/nucleon A.A Terekhin et al. Joint Institute for Nuclear Research, Dubna, Russia HS’2013

  2. Introduction The purpose of DSS (Deuteron spin structure) project is the broadening of the energy and angular ranges of measurement of different observables in processes including 3-nucleon systems. The study of the dp-elastic scattering at various energies in large angle range is one of directions in this domain. The experimental setup at internal target station (ITS) at Nuclotron allows us to obtain the different observables at angle range 70-120o in the c.m.s. We shown in this presentation preliminary data of differential cross section for dp-elastic scattering at 650, 750 and 1000 Mev/n, obtained at ITS Nuclotron.

  3. Differential cross section Empty boxes - Terekhin A.A.et al.EPJ A48 (2012) 182. The solid circles– Bennett G. W. et al. Phys. Rev. Lett. (1976). V.19 P. 387-390. Thedottedandsolidlinesarethecalculationswithoutandwith DSterm,respectively.

  4. The Internal target station

  5. Data for dp-elastic scattering at 1 GeV/n for Q*dp=75oc.m.s. The subtraction of the time signal D- and P- counters. The data were obtained by using the counters based on the FMP Hamamatsu H7416MOD. The subtraction of the time signal from D- and P- counters. The data were obtained by using the counters based on the FMP FEU -85.

  6. Layout of the counters with respect to the beam direction P = 20x60x20 mm3 D = 10x40x24 mm3 PP = 50x50x20 mm3 P = 20x60x20 mm3 D = 50x50x20 mm3 PP =f100х200 mm3

  7. Data analysis The signal amplitudes correlation for D and P detectors. The subtraction of the time signal from D- and P- counters. I - (II+III) Subtraction

  8. CH2-C subtraction CH2-C subtraction for amplitude specters of P-counter. Differential cross section at 1000 MeV/n Squares – new data Circles – Bennett G. W. et al. Phys. Rev. Lett. 1976. V.19 P. 387-390.

  9. Differential cross section 650 MeV/n 750 MeV/n Triangles – data at 641.3 MeV/n (Culmez E. Phys.Rev.C, V43, №5, 1991) Blue triangles – data at 792.7 MeV/n (Culmez E. Phys.Rev.C, V43, №5, 1991) Green triangles – data from 800 MeV/n (Winkelmann E. Phys.Rev.C, V21, №6, 1980)

  10. Conclusion • The preliminary differential cross section data for dp-elastic scattering at 650,750 and 1000 MeV/n are obtained. • The results was compared with existing data for similar values of energies. The data are in reasonable agreement. • The measurements of the dp-elastic scattering at energies deuteron beam from 650 to 1000 MeV/n are planned.

  11. Thank you for attention!

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