Bellemann, F;
Berg, A;
Bisplinghoff, J;
Bohlscheid, G;
Ernst, J;
Henrich, C;
Hinterberger, F;
... Wilkin, C; + view all
(2016)
Experimental study of the pd(d p) → 3
He ππ reactions close to threshold.
Physical Review C
, 94
(3)
, Article 034618. 10.1103/PhysRevC.94.034618.
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Abstract
New experimental data on the pd → 3 He π+π− reaction obtained with the COSY-MOMO detector below the three-pion threshold are presented. The reaction was also studied in inverse kinematics with a deuteron beam and the higher counting rates achieved were especially important at low excess energies. The comparison of these data with inclusive pd → 3 He X0 rates allowed estimates also to be made of π0π0 production. The results confirm our earlier findings that, close to threshold, there is no enhancement at low excitation energies in the π+π− system, where the data seem largely suppressed compared with phase space. Possible explanations for this behavior, such as strong p waves in the π+π− system or the influence of two-step processes, are explored.
| Type: | Article |
|---|---|
| Title: | Experimental study of the pd(d p) → 3 He ππ reactions close to threshold |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevC.94.034618 |
| Publisher version: | http://doi.org/10.1103/PhysRevC.94.034618 |
| Language: | English |
| Additional information: | ©2016 American Physical Society. This version is the /version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Physics, Nuclear, Physics, NEAR-THRESHOLD, NUCLEI, PAIRS, ABC |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1528437 |
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