@article{a9e66150aed64db1a54c990046d5cf13,

title = "Measurements of branching fractions of Λc+ → ς+η and Λc+ → ς+η′ and asymmetry parameters of Λc+ → ς+π0, Λc+ → ς+η, and Λc+ → ς+η′",

abstract = "We report a study of Λc+→ς+π0, Λc+→ς+η, and Λc+→ς+η′ using the data sample corresponding to an integrated luminosity of 980 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching fractions relative to Λc+→ς+π0 are measured as BΛc+→ς+η/BΛc+→ς+π0=0.25±0.03±0.01 and BΛc+→ς+η′/BΛc+→ς+π0=0.33±0.06±0.02. Using BΛc+→ς+π0=(1.25±0.10)%, we obtain BΛc+→ς+η=(3.14±0.35±0.17±0.25)×10-3 and BΛc+→ς+η′=(4.16±0.75±0.25±0.33)×10-3. Here the uncertainties are statistical, systematic, and from BΛc+→ς+π0, respectively. The ratio of the branching fraction of Λc+→ς+η′ with respect to that of Λc+→ς+η is measured to be BΛc+→ς+η′/BΛc+→ς+η=1.34±0.28±0.08. We update the asymmetry parameter of Λc+→ς+π0, ας+π0=-0.48±0.02±0.02, with a considerably improved precision. The asymmetry parameters of Λc+→ς+η and Λc+→ς+η′ are measured to be ας+η=-0.99±0.03±0.05 and ας+η′=-0.46±0.06±0.03 for the first time.",

author = "{Belle Collaboration} and Li, {S. X.} and Shen, {C. P.} and I. Adachi and Ahn, {J. K.} and H. Aihara and Asner, {D. M.} and H. Atmacan and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and Sw Banerjee and P. Behera and K. Belous and J. Bennett and M. Bessner and T. Bilka and D. Biswas and A. Bobrov and D. Bodrov and J. Borah and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Cho, {S. J.} and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and {De Pietro}, G. and R. Dhamija and {Di Capua}, F. and Dong, {T. V.} and T. Ferber and A. Frey and Fulsom, {B. G.} and V. Gaur and A. Giri and H. Park",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society.",

year = "2023",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.107.032003",

language = "English",

volume = "107",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}