TY - JOUR

T1 - Deeply bound [Formula Presented] states in [Formula Presented] formed in the [Formula Presented] reaction. I. Experimental method and results

AU - Gilg, H.

AU - Gillitzer, A.

AU - Knülle, M.

AU - Münch, M.

AU - Schott, W.

AU - Kienle, P.

AU - Itahashi, K.

AU - Oyama, K.

AU - Hayano, R. S.

AU - Geissel, H.

AU - Iwasa, N.

AU - Münzenberg, G.

AU - Yamazaki, T.

N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2000

Y1 - 2000

N2 - The deeply bound pionic states [Formula Presented] were observed for the first time, by investigating the [Formula Presented] reaction at a beam energy of [Formula Presented] and at ejectile angles around 0°. The measured momentum distribution of the [Formula Presented] particles was used to determine the Q value spectrum in the region [Formula Presented] with a systematic uncertainty of ±120 keV and a full width at half maximum resolution of [Formula Presented] This spectrum shows a prominent peak at [Formula Presented] corresponding to the pionic [Formula Presented] state, coupled mainly to the [Formula Presented] and [Formula Presented] neutron hole states in [Formula Presented] A shoulder is seen on the tail of this dominant peak, and is attributed to the population of the pionic [Formula Presented] state. The cross section for the continuum component at these high excitation energies is [Formula Presented] The net cross section for production of [Formula Presented] states in the bound pion region [Formula Presented] above the continuum amounts to [Formula Presented].

AB - The deeply bound pionic states [Formula Presented] were observed for the first time, by investigating the [Formula Presented] reaction at a beam energy of [Formula Presented] and at ejectile angles around 0°. The measured momentum distribution of the [Formula Presented] particles was used to determine the Q value spectrum in the region [Formula Presented] with a systematic uncertainty of ±120 keV and a full width at half maximum resolution of [Formula Presented] This spectrum shows a prominent peak at [Formula Presented] corresponding to the pionic [Formula Presented] state, coupled mainly to the [Formula Presented] and [Formula Presented] neutron hole states in [Formula Presented] A shoulder is seen on the tail of this dominant peak, and is attributed to the population of the pionic [Formula Presented] state. The cross section for the continuum component at these high excitation energies is [Formula Presented] The net cross section for production of [Formula Presented] states in the bound pion region [Formula Presented] above the continuum amounts to [Formula Presented].

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U2 - 10.1103/PhysRevC.62.025201

DO - 10.1103/PhysRevC.62.025201

M3 - Article

AN - SCOPUS:85035262493

VL - 62

SP - 11

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 2

ER -