Electromagnetic production of hypernuclei

Journal Article · Sun May 15 04:00:00 EDT 2011 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2011.02.003· OSTI ID:21579894

Mart, T ^[1]; Lue, H -F ^[2]; Yadav, H L ^[3]; Hillhouse, G C ^[4]

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1. Departemen Fisika, FMIPA, Universitas Indonesia, Depok 16424 (Indonesia)
2. School of Science, Chinese Agriculture University, Beijing 100083 (China)
3. Department of Physics, Banaras Hindu University, Varanasi 221005 (India)
4. University for Information Science and Technology, Building at ARM, Partizanska bb, Ohrid 6000, Former Yugolav Republic of Macedonia (Macedonia, The Former Yugoslav Republic of)

Highlights: {yields}General formalism for electromagnetic production of hypernuclei. > Most recent form of the electromagnetic current operator for elementary process. > Fully relativistic description of bound state wave functions. > Unpolarized cross section determined by three structure functions. - Abstract: A formalism for the electromagnetic production of hypernuclei is developed where the cross section is written as a contraction between a leptonic tensor and a hadronic tensor. The hadronic tensor is written in a model-independent way by expanding it in terms of a set of five nuclear structure functions. These structure functions are calculated by assuming that the virtual photon interacts with only one bound nucleon. We use the most recent model for the elementary current operator which gives a good description of the experimental data for the corresponding elementary process. The bound state wave functions for the bound nucleon and hyperon are calculated within a relativistic mean-field model. We calculate the unpolarized triple differential cross section for the hypernuclear production process e+{sup 12}C{yields}e+K{sup +}+{sup 12}{sub {Lambda}B} as a function of the kaon scattering angle. The nuclear structure functions are calculated within a particle-hole model. The cross section displays a characteristic form of being large for small values of the kaon scattering angle with a smooth fall-off to zero with increasing angle. The shape of the cross section is essentially determined by the nuclear structure functions. In addition, it is found that for the unpolarized triple differential cross section one structure function is negligible over the entire range of the kaon scattering angle.

• OSTI ID: 21579894
• Journal Information: Annals of Physics (New York), Journal Name: Annals of Physics (New York) Journal Issue: 5 Vol. 326; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AUGMENTATION
BARYONS
BOSONS
BOUND STATE
CHARGED PARTICLES
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FUNCTIONS
HADRONS
HYPERNUCLEI
HYPERONS
IONS
KAONS
KAONS MINUS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MEAN-FIELD THEORY
MESONS
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR STRUCTURE
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
PARTICLE-HOLE MODEL
PHOTONS
POTASSIUM IONS
PSEUDOSCALAR MESONS
RELATIVISTIC RANGE
SCATTERING
STRANGE MESONS
STRANGE PARTICLES
STRANGENESS
STRUCTURE FUNCTIONS
TENSORS
WAVE FUNCTIONS