A Search for Deeply Bound Pionic States of Xenon Produced in the 136Xe(d, 3He)135Xeπ-bound Reaction.

A search for deeply bound pionic states of xenon produced in the ¹³⁶Xe(d, ³He)¹³⁵Xe_π-bound reaction at E_d = 500 MeV is reported. The population of the 1s pionic-atom state of ¹³⁵Xe is observed on the predicted level of the cross section ∼40 μb/sr. The binding energy of the 1s state, B = 2.9 ± 0.5 MeV, however, is lower than theoretically predicted.© 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]