http://192.168.1.40:8080/xmlui/handle/123456789/1109 2026-05-31T11:14:08Z http://192.168.1.40:8080/xmlui/handle/123456789/2289 A highly unusual cosmic ray event at mountain altitude Basu, B.; Biswas, S.; Dey, S.; Mazumdar, A.; Raha, Sibaji; Saha, Swapan K. Search of rare massive particles in cosmic rays became an active field of research for several years. A recent theoretical study suggested the possible existence of strangelets in cosmic rays even at the mountain altitude. A common polymer, generally used as overhead projector transparencies, was identified as a solid state nuclear track detector (SSNTD) with a detection threshold Z/beta > 35. Those polymer detectors were exposed to cosmic rays at an altitude of 2.2 km as a trial experiment for setting up a large area array of detectors, aiming at the search of rare massive cosmic ray particles at mountain altitude. During the analysis of one such OHP detector we have found a highly unusual event. In the present paper we report our observation. 2005-01-01T00:00:00Z http://192.168.1.40:8080/xmlui/handle/123456789/2133 Analyzing powers and spin correlation coefficients for p+d elastic scattering at 135 and 200 MeV Przewoski, B. V.; Meyer, H. O.; Balewski, J. T.; Daehnick, W. W.; Doskow, J.; Haeberli, W.; Ibald, R.; Lorentz, B.; Pollock, R. E.; Pancella, P. V.; Rathmann, F.; Rinckel, T.; Saha, Swapan K.; Schwartz, B.; Thörngren-Engblom, P.; Wellinghausen, A.; Whitaker, T. J.; Wise, T. The proton and deuteron analyzing powers and ten of the possible 12 spin correlation coefficients have been measured for p+d elastic scattering at proton bombarding energies of 135 and 200 MeV. The results are compared with Faddeev calculations using two different NN potentials. The qualitative features of the extensive data set on the spin dependence in p+d elastic scattering over a wide range of angles presented here are remarkably well explained by two-nucleon force predictions without inclusion of a three-nucleon force. The remaining discrepancies are, in general, not alleviated when theoretical three-nucleon forces are included in the calculations. DOI: 10.1103/PhysRevC.74.064003 2006-12-01T00:00:00Z