Coulomb suppression in the low-energy p-p elastic scattering via the Trojan Horse Method

Journal Article · Wed Nov 24 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3527202· OSTI ID:21506845

Tumino, A ^[1]; Spitaleri, C; Rapisarda, G G; Cherubini, S; Crucilla, V; Gulino, M; La Cognata, M; Lamia, L; Pizzone, R G; Puglia, S M. R.; Romano, S; Sergi, M L ^[1]; Mukhamedzhanov, A ^[2]; Campajola, L ^[3]; Elekes, Z; Fueloep, Zs; Gyuerky, G; Kiss, G G; Somorjai, E ^[4]; Gialanella, L ^[5]

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1. Laboratori Nazionali del Sud-INFN, via S. Sofia 62, 95123 Catania, Italy and Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Universita di Catania (Italy)
2. Cyclotron Institute, Texas A and M University, College Station (United States)
3. Dipartimento di Scienze Fisiche-Universita Federico II, Napoli (Italy)
4. ATOMKI-Debrecen (Hungary)
5. INFN-Sezione di Napoli (Italy)

We present here an important test of the main feature of the Trojan Horse Method (THM), namely the suppression of Coulomb effects in the entrance channel due to off-energy-shell effects. This is done by measuring the THM p-p elastic scattering via the p+d{yields}p+p+n reaction at 4.7 and 5 MeV, corresponding to a p-p relative energy ranging from 80 to 670 keV. In contrast to the on-energy-shell (OES) case, the extracted p-p cross section does not exhibit the Coulomb-nuclear interference minimum due to the suppression of the Coulomb amplitude. This is confirmed by the half-off-energy shell (HOES) calculations and strengthened by the agreement with the calculated OES nuclear cross sections.

• OSTI ID: 21506845
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1304; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ATOM COLLISIONS
BARYON-BARYON INTERACTIONS
COLLISIONS
CROSS SECTIONS
ELASTIC SCATTERING
ELECTRIC POTENTIAL
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
INTERFERENCE
MEV RANGE
MEV RANGE 01-10
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-NEUTRON INTERACTIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SCATTERING
SIMULATION