A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.
Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ" [Search for Lepton-Flavor Violating Decays B+ -> K+ mu(+/-) e(-/+)]
Cardinale R.;Neri N.;Petrolini A.;Sergi A.;Spadaro Norella E.;
2019-01-01
Abstract
A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.File in questo prodotto:
	
	
	
    
	
	
	
	
	
	
	
	
		
			
				
			
		
		
	
	
	
	
		
		
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