International Conference on Exotic Atoms and Related Topics - EXA2017

The integrated cross section of double polarized pd-scattering with transverse polarization of the proton ($P_y$) and tensor polarization ($P_{xz}$) of the deuteron constitutes a null-test signal of the time-invariance violating P-parity conserving (TVPC) effects $\widetilde\sigma$ [1]. Experimental search of this signal is planned at COSY at proton beam energy 135 MeV [2]. Theoretical study of the energy dependence of this signal for several type of phenomenological TVPC NN- interactions was done within the Glauber theory in [3] for the S-wave approximation and in [4] with the deuteron D-wave included. In both cases the Coulomb interaction was taken into account and its contribution to $\widetilde\sigma$ is found to be rather small. However, the S-D interference is destructive and very important [4]. Evidently, the integrated cross section of the polarized ($P_y$) antiproton scattering off the tensor polarized ($P_{xz}$) deuteron also provides a null-test signal of the TVPC effects. One may assume that TVPC $\bar NN$-interaction contains the same operator structure as the $NN$-interaction except the charge-exchange term $\bar p p\to \bar n n$.However, due to difference between strong NN- and antip N- scattering amplitudes the energy dependence of the null test signal in pd- and anti-pd- interaction has to be different. In the present work these properties will be discussed on the basis of the calculations within the spin-dependent Glauber model [5] using the \bar p N-scattering amplitudes from Ref. [6]. [1] Н.Е.Conzett, Phys. Rev. C 48 (1993) 423. [2] P.D. Eversheim, B. Lorenz, Yu.Valdau (spokepersons), COSY Proposal No 25 [http://apps.fz-juelich.de/pax/paxwiki/ images/8/8c/215-TRRI-Prop_sum.pdf] [3] Yu. N.Uzikov, A.A. Temerbayev, Phys. Rev. C 92 (2015) 014002. [4] Yu. N.Uzikov, J.H. Haidenbauer, Phys. Rev. C 94 (2016) 035501. [5] Yu. N.Uzikov, J.H. Haidenbauer, Phys. Rev. C 88 (2013) 027001. [6] D. Zhou, R.G. E. Timmermans, Phys. Rev. C 86 (2012) 044003.