Measurement of the absolute branching fraction of Λc+→pKS0η decays

BESIII Collaboration

doi:10.1016/j.physletb.2021.136327

Measurement of the absolute branching fraction of Λ_c⁺→pK_S⁰η decays

BESIII Collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Based on 586 pb⁻¹ of e⁺e⁻ annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λ_c⁺→pK_S⁰η decays is measured for the first time to be B(Λ_c⁺→pK_S⁰η)=(0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction [Formula-presented], and consistent with theoretical predictions of SU(3) flavor symmetry.

Original language	English (US)
Article number	136327
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	817
DOIs	https://doi.org/10.1016/j.physletb.2021.136327
State	Published - Jun 10 2021

Bibliographical note

Funding Information:
The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400 , 2020YFA0406300 ; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524 , 11575193 11625523 , 11635010 , 11735014 , 11822506 , 11835012 , 11935015 , 11935016 , 11935018 , 11961141012 , 11805086 , U1732266 ; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153 ; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263 , U1832207 ; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003 , QYZDB-SSW-SLH039 , QYZDJ-SSW-SLH040 ; 100 Talents Program of CAS ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; Fundamental Research Funds for the Central Universities of China ; ERC under Contract No. 758462 ; German Research Foundation DFG under Contracts Nos. 443159800 , Collaborative Research Center CRC 1044 , FOR 2359 , GRK 214 ; Istituto Nazionale di Fisica Nucleare , Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470 ; National Science and Technology fund ; Olle Engkvist Foundation under Contract No. 200-0605 ; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157 ; The Royal Society , UK under Contracts Nos. DH140054 , DH160214 ; The Swedish Research Council ; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374 , DE-SC-0012069 .

Funding Information:
The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400, 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524, 11575193 11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012, 11805086, U1732266; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263, U1832207; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003, QYZDB-SSW-SLH039, QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; Fundamental Research Funds for the Central Universities of China; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 214; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts Nos. DH140054, DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374, DE-SC-0012069.

Publisher Copyright:
© 2021 The Author

Keywords

Absolute branching fraction
BESIII
Charmed baryon
Λ decays

Publisher link

10.1016/j.physletb.2021.136327

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@article{eae620adcb9f48b0be6aef6f1b180de8,

title = "Measurement of the absolute branching fraction of Λc+→pKS0η decays",

abstract = "Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction [Formula-presented], and consistent with theoretical predictions of SU(3) flavor symmetry.",

keywords = "Absolute branching fraction, BESIII, Charmed baryon, Λ decays",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and S. Ahmed and M. Albrecht and R. Aliberti and A. Amoroso and Q. An and Anita and Bai, {X. H.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and I. Balossino and Y. Ban and K. Begzsuren and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and A. Bortone and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Chen, {Z. J.} and Cheng, {W. S.} and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and H. Muramatsu",

note = "Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400 , 2020YFA0406300 ; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524 , 11575193 11625523 , 11635010 , 11735014 , 11822506 , 11835012 , 11935015 , 11935016 , 11935018 , 11961141012 , 11805086 , U1732266 ; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153 ; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263 , U1832207 ; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003 , QYZDB-SSW-SLH039 , QYZDJ-SSW-SLH040 ; 100 Talents Program of CAS ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; Fundamental Research Funds for the Central Universities of China ; ERC under Contract No. 758462 ; German Research Foundation DFG under Contracts Nos. 443159800 , Collaborative Research Center CRC 1044 , FOR 2359 , GRK 214 ; Istituto Nazionale di Fisica Nucleare , Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470 ; National Science and Technology fund ; Olle Engkvist Foundation under Contract No. 200-0605 ; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157 ; The Royal Society , UK under Contracts Nos. DH140054 , DH160214 ; The Swedish Research Council ; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374 , DE-SC-0012069 . Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400, 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524, 11575193 11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012, 11805086, U1732266; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263, U1832207; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003, QYZDB-SSW-SLH039, QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; Fundamental Research Funds for the Central Universities of China; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 214; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts Nos. DH140054, DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374, DE-SC-0012069. Publisher Copyright: {\textcopyright} 2021 The Author",

year = "2021",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2021.136327",

language = "English (US)",

volume = "817",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

TY - JOUR

T1 - Measurement of the absolute branching fraction of Λc+→pKS0η decays

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, Q.

AU - Anita,

AU - Bai, X. H.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Bortone, A.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chen, Z. J.

AU - Cheng, W. S.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Muramatsu, H.

N1 - Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400 , 2020YFA0406300 ; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524 , 11575193 11625523 , 11635010 , 11735014 , 11822506 , 11835012 , 11935015 , 11935016 , 11935018 , 11961141012 , 11805086 , U1732266 ; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153 ; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263 , U1832207 ; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003 , QYZDB-SSW-SLH039 , QYZDJ-SSW-SLH040 ; 100 Talents Program of CAS ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; Fundamental Research Funds for the Central Universities of China ; ERC under Contract No. 758462 ; German Research Foundation DFG under Contracts Nos. 443159800 , Collaborative Research Center CRC 1044 , FOR 2359 , GRK 214 ; Istituto Nazionale di Fisica Nucleare , Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470 ; National Science and Technology fund ; Olle Engkvist Foundation under Contract No. 200-0605 ; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157 ; The Royal Society , UK under Contracts Nos. DH140054 , DH160214 ; The Swedish Research Council ; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374 , DE-SC-0012069 . Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2020YFA0406400, 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11425524, 11575193 11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012, 11805086, U1732266; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Youth Innovation Promotion Association of CAS under Contract No. 2016153; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. U1732263, U1832207; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003, QYZDB-SSW-SLH039, QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; Fundamental Research Funds for the Central Universities of China; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 214; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts Nos. DH140054, DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts Nos. DE-FG02-05ER41374, DE-SC-0012069. Publisher Copyright: © 2021 The Author

PY - 2021/6/10

Y1 - 2021/6/10

N2 - Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction [Formula-presented], and consistent with theoretical predictions of SU(3) flavor symmetry.

AB - Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction [Formula-presented], and consistent with theoretical predictions of SU(3) flavor symmetry.

KW - Absolute branching fraction

KW - BESIII

KW - Charmed baryon

KW - Λ decays

UR - http://www.scopus.com/inward/record.url?scp=85111054011&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85111054011&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2021.136327

DO - 10.1016/j.physletb.2021.136327

M3 - Article

AN - SCOPUS:85111054011

SN - 0370-2693

VL - 817

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136327

ER -