Overview of Rare D_s⁺ Decays
(updated 16 April 2025)

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People working on this:   Marco Gersabeck

This page provides an overview of rare D_s⁺ decays. Shown are 90% C.L. limits as overview plots and listed in a table. The different regions combine lepton flavor violation decays (LF), and lepton number violating decays (L).

D_s⁺ limits at 90% C.L.

Decay	Limit at 90% CL x106	Experiment	Reference
γe+νe	130.0	BESIII	M. Ablikim et al., Phys. Rev. D99 (2019) 072002
π+e+e-	270.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	22.0	CLEO	P. Rubin et al., Phys. Rev. D82 (2010) 092007
	13.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	5.5	LHCb	R. Aaij et al., JHEP 06 (2021) 044
π+μ+μ-	430.0	E653	K. Kodama et al., Phys. Lett. B345 (1995) 85
	140.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	43.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	26.0	Focus	J.M. Link et al., Phys. Lett. B572 (2003) 21
	0.18	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K+e+e-	1600.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	52.0	CLEO	P. Rubin et al., Phys. Rev. D82 (2010) 092007
	4.8999999999999995	LHCb	R. Aaij et al., JHEP 06 (2021) 044
	3.7	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
K+μ+μ-	140.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	36.0	Focus	J.M. Link et al., Phys. Lett. B572 (2003) 21
	21.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.14	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K*+(892)μ+μ-	1400.0	E653	K. Kodama et al., Phys. Lett. B345 (1995) 85
π+e±μ∓	610.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
π+e+μ-	12.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	1.1	LHCb	R. Aaij et al., JHEP 06 (2021) 044
π+μ+e-	20.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.94	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K+e±μ∓	630.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
K+e+μ-	14.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.7899999999999999	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K+μ+e-	9.700000000000001	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.56	LHCb	R. Aaij et al., JHEP 06 (2021) 044
π-e+e+	690.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	18.0	CLEO	P. Rubin et al., Phys. Rev. D82 (2010) 092007
	4.1	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	1.4	LHCb	R. Aaij et al., JHEP 06 (2021) 044
π-μ+μ+	430.0	E653	K. Kodama et al., Phys. Lett. B345 (1995) 85
	82.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	29.0	Focus	J.M. Link et al., Phys. Lett. B572 (2003) 21
	14.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.08600000000000001	LHCb	R. Aaij et al., JHEP 06 (2021) 044
π-e+μ+	730.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	0.63	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K-e+e+	630.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	17.0	CLEO	P. Rubin et al., Phys. Rev. D82 (2010) 092007
	5.2	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.77	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K-μ+μ+	590.0	E653	K. Kodama et al., Phys. Lett. B345 (1995) 85
	180.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	13.0	BaBar	J.P. Lees et al., Phys. Rev. D84 (2011) 072006
	0.026000000000000002	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K-e+μ+	680.0	E791	E.M. Aitala et al., Phys. Lett. B462 (1999) 401
	0.26	LHCb	R. Aaij et al., JHEP 06 (2021) 044
K*-(892)μ+μ+	1400.0	E653	K. Kodama et al., Phys. Lett. B345 (1995) 85