Published 2008 | Version v1
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The isospin symmetry breaking effects in Ke4 decays

Creators

  • 1. Yerevan Physics Inst., Yerevan (Armenia)
  • 2. Veksler and Baldin Lab. of High Energy Physics, Joint Inst. for Nuclear Research, Dubna (Russian Federation)
  • 3. Siberian Physical-Technical Inst., Tomsk State Univ. Tomsk (Russian Federation)

Description

The Fermi-Watson theorem is generalized to the case of two coupled channels with different masses and applied to final state interaction in Ke4 decays. The impact of the considered effect on the phase of ππ scattering is estimated and it is shown that it can be crucial for the scattering lengths extraction from experimental data on Ke4 decays

Availability note (English)

Also available online: http://www1.jinr.ru/Preprints/2008/202(E2-2008-202).pdf

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Additional details

Identifiers

URL
http://www1.jinr.ru/Preprints/2008/202(E2-2008-202).pdf;

Publishing Information

Imprint Pagination
11 p.
Report number
JINR-E--2-2008-202

INIS

Country of Publication
Joint Institute for Nuclear Research (JINR)
Country of Input or Organization
Joint Institute for Nuclear Research (JINR)
INIS RN
42024832
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
DECAY AMPLITUDES; FINAL-STATE INTERACTIONS; FORM FACTORS; HADRONIC PARTICLE DECAY; ISOSPIN; KAONS MINUS; KAONS PLUS; MATRIX ELEMENTS; PHASE SHIFT; PIONS; S WAVES; SCATTERING LENGTHS; SEMILEPTONIC DECAY; SYMMETRY BREAKING
Descriptors DEC
AMPLITUDES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; DIMENSIONS; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; KAONS; LENGTH; MESONS; PARTIAL WAVES; PARTICLE DECAY; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; TRANSITION AMPLITUDES; WEAK PARTICLE DECAY

Optional Information

Notes
24 refs., 2 figs. Submitted to the journal, Yadernaya Fizika