RT Journal Article
T1 Search for the Λ 0b → Λη ′ and Λ 0b → Λη decays with the LHCb detector
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 García Pardiñas, Julián
A1 Hernando Morata, José Ángel
A1 Lucio Martínez, Miriam
A1 Plo Casasus, Máximo
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
A1 Vieites Díaz, María
K1 Hadron-Hadron Scattering
K1 B physics
K1 Flavor physics
AB A search is performed for the as yet unobserved baryonic Λ 0b → Λη ′ and Λ 0b → Λη decays with 3 fb−1 of proton-proton collision data recorded by the LHCb experiment. The B0 → K 0sη ′ decay is used as a normalisation channel. No significant signal is observed for the Λ 0b → Λη ′ decay. An upper limit is found on the branching fraction of B(Λ0b→Λη′) < 3.1 × 10−6 at 90% confidence level. Evidence is seen for the presence of the Λ 0b → Λη decay at the level of 3σ significance, with a branching fraction B(Λ0b→Λη)=(9.3+7.3−5.3)×10−6
PB Springer
SN 1029-8479
YR 2015
FD 2015
LK http://hdl.handle.net/10347/21920
UL http://hdl.handle.net/10347/21920
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Search for the Λ 0b → Λη ′ and Λ 0b → Λη decays with the LHCb detector. J. High Energ. Phys. 2015, 6 (2015). https://doi.org/10.1007/JHEP09(2015)006
DS Minerva
RD 24 abr 2026