Pentaquark, cusp, and rescattering in single kaon photoproduction off deuterium

Journal Article · Mon Jan 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.014002· OSTI ID:20990933

Laget, J M ^[1]

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1. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)

In very well-defined parts of the phase space, KN and {lambda}N rescattering depend on on-shell elementary matrix elements and on the low momentum components of the deuteron wave function. This provides us with the unique opportunity to study details in the scattering amplitudes that may have escaped the analysis of reactions induced on a nucleon target by kaon and hyperon beams at low energies. When folded with a typical experimental mass resolution, a narrow state with a width of 1 MeV would contribute by no more than 10% to the KN mass spectrum. On the contrary, a cusp would be easily detected near the {sigma} production threshold in the {lambda}N mass spectrum.

• OSTI ID: 20990933
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevC.75.014002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CUSPED GEOMETRIES
DEUTERIUM
DEUTERONS
HYPERON BEAMS
KAONS
MASS RESOLUTION
MASS SPECTRA
MATRIX ELEMENTS
MEV RANGE 01-10
NUCLEONS
PHASE SPACE
PHOTOPRODUCTION
RESCATTERING
SCATTERING AMPLITUDES
WAVE FUNCTIONS