1. |
- Boudard, A, et al.
(författare)
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Triplet np final state interactions at large momentum transfers
- 1996
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 389:3, s. 440-444
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Tidskriftsartikel (refereegranskat)abstract
- Using the simple relation between the np scattering and bound state wave functions, the spin-triplet contributions to the pp --> pi(+)(pn) and backward dp --> p(pn) reactions are estimated for low np excitation energies. The good agreement with the pion p
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2. |
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3. |
- Faldt, Goran, et al.
(författare)
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A comparison of np -> d eta and np -> np eta production rates
- 1996
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 604:4, s. 441-454
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Tidskriftsartikel (refereegranskat)abstract
- It is shown that in the impulse approximation the ratio of the near-threshold np --> {np}(I=0) eta to np --> d eta production rates depends weakly upon the form of the production operator and can be estimated using low-energy neutron-proton dynamics. The
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4. |
- Faldt, Goran, et al.
(författare)
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Bound and unbound wave functions at short distances
- 1998
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Ingår i: AMERICAN JOURNAL OF PHYSICS. - : AMER INST PHYSICS. - 0002-9505. ; 66:10, s. 876-881
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Tidskriftsartikel (refereegranskat)abstract
- There exists a simple relationship between a quantum-mechanical bound-state wave function and that of nearby scattering states, when the scattering energy is extrapolated to that of the bound state. This relationship is demonstrated numerically for the ca
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5. |
- Faldt, Goran, et al.
(författare)
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Bound state and continuum production in large momentum transfer reactions
- 1996
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 382:3, s. 209-213
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Tidskriftsartikel (refereegranskat)abstract
- The cross sections for pp --> pn pi(+) and pd --> pd pi(0) are related to those for the corresponding reactions producing bound deuterons and He-3's respectively. The large momentum transfers in the reactions involve short range operators and under these
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6. |
- Faldt, Goran, et al.
(författare)
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Comparison of the near-threshold production of eta- and K-mesons in proton-proton collisions
- 1997
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Ingår i: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI. - : SPRINGER VERLAG. - 0939-7922. ; 357:3, s. 241-243
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Tidskriftsartikel (refereegranskat)abstract
- The pp --> pp eta and pp --> p Lambda K+ reactions near threshold are dominated by the first and second S-11 resonance respectively. It is shown that a one-pion-exchange model exciting these isobars reproduces well the ratio of the production cross sectio
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7. |
- Faldt, Goran, et al.
(författare)
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Cross section and analyzing power of (p)over-right-arrow-p->pn pi(+) near threshold
- 1997
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Ingår i: PHYSICAL REVIEW C-NUCLEAR PHYSICS. - : AMER INST PHYSICS. - 0556-2813. ; 56:4, s. 2067-2073
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Tidskriftsartikel (refereegranskat)abstract
- The cross section and analyzing power of the (p)-over-right-arrow-p-->pn pi(+) reaction near threshold are estimated in terms of data obtained from the (p)-over-right-arrow-p-->d pi(+) and pp-->pp pi(0) reactions. A simple final state interaction theory i
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8. |
- Faldt, Goran, et al.
(författare)
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Scattering wave functions at bound state poles
- 1997
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Ingår i: PHYSICA SCRIPTA. - : ROYAL SWEDISH ACAD SCIENCES. - 0281-1847. ; 56:6, s. 566-570
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Tidskriftsartikel (refereegranskat)abstract
- The normalization relation between the bound and scattering S-state wave functions, extrapolated to the bound state pole, is derived from the Schrodinger equation. It is shown that, unlike previous work, the result does not depend on the details of the po
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9. |
- Faldt, Goran, et al.
(författare)
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The dd->He-4 eta reaction near threshold
- 1996
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. ; 596:3-4, s. 488-502
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Tidskriftsartikel (refereegranskat)abstract
- The cross section for the reaction dd --> He-4 eta close to threshold is estimated in a two-step model, similar to that which successfully describes near-threshold pd --> He-3 eta production. A pi-meson, created in a dp --> He-3 pi(0) process on one nucle
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10. |
- FALDT, Goran, et al.
(författare)
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THE REACTION PD-]HE-3-ETA NEAR-THRESHOLD
- 1995
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 587:4, s. 769-786
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Tidskriftsartikel (refereegranskat)abstract
- The cross section and deuteron tenser analysing power of the reaction pd-->He-3 eta are studied near threshold in a two-step model, where a pion beam, created in a NN-->d pi reaction on one of the nucleons in the target deuteron, is converted into an eta-
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