[Clas_hadron] Abstract for BLV 2017

[Michael Evan McCracken]

Dear spectroscopists,
	I would like to give a contributed talk at the 2017 International Workshop on Baryon and Lepton Number Violation (BLV 2017) at Case Western Reserve University during May 15-18.  The talk will be on the previously published CLAS search for these phenomena in the decays of Lambda baryons (http://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.072002 <http://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.072002>).  The analysis may seem a little stale for presentation, but this is a biennial workshop.
	I have included title and abstract below.  I welcome any comments or suggestions.
Best regards,
Mike


Title: 
A search for baryon- and lepton-number violating decays of $\Lambda$ hyperons
using the CLAS detector at Jefferson Laboratory

Abstract:
We present the techniques and results from a search for ten baryon-number violating decay modes of the $\Lambda$ hyperon using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state ($\Lambda \rightarrow m \ell$) and conserve either the sum or the difference of baryon and lepton number ($B \pm L$).  The tenth decay mode ($\Lambda \rightarrow \bar{p}\pi^+$) represents a difference in baryon number of two units and no difference in lepton number.  We observe no significant signal and set upper limits on the branching fractions of these decays in the range $(4-200)\times 10^{-7}$ at the $90\%$ confidence level.  The represents the first search for such decays directly involving strange quarks.



	
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Michael E McCracken, Ph.D.
Joseph A. Walker Professor of Physics
Washington & Jefferson College
Washington, PA 15301
724.223.6148
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