K{sub L}{r_arrow}{pi}{sup 0}{nu}{bar {nu}} in the aspon model

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.7456· OSTI ID:553206

Berera, A; Kephart, T W ^[1]; Sher, M ^[2]

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1. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
2. Physics Department, College of William and Mary, Williamsburg, Virginia 23187 (United States)

An attractive alternative to the standard model of CP violation is the aspon model. In this model, CP is spontaneously broken, automatically solving the strong CP problem. Recently, it has been shown that CP violation in the B system is much smaller in the aspon model than in the standard model. Here we provide a complementary study by considering K{sub L}{r_arrow}{pi}{sup 0}{nu}{bar {nu}}, which is almost entirely CP violating and free of hadronic uncertainties, and show that the rate in the aspon model is many orders of magnitude below the standard model rate. Observation of K{sub L}{r_arrow}{pi}{sup 0}{nu}{bar {nu}} would rule out the aspon model. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 553206
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 56; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTINEUTRINOS
CP INVARIANCE
KAONS NEUTRAL LONG-LIVED
NEUTRINOS
PIONS NEUTRAL
SEMILEPTONIC DECAY
STANDARD MODEL
SYMMETRY BREAKING
UNIFIED GAUGE MODELS
VIOLATIONS