First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λc+ →pK+π-

Belle Collaboration

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We report the first observation of the decay Λc+→pK+π- using a 980 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e- collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Λc+→pK+π-)/B(Λc+→pK-π+)=(2.35±0.27±0.21)×10-3, where the uncertainties are statistical and systematic, respectively.

Original languageEnglish
Article number011801
JournalPhysical Review Letters
Volume117
Issue number1
DOIs
Publication statusPublished - 2016 Jun 27

Fingerprint

baryons
decay
detectors
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{3dcf12098ee544aea82e31a30d741f56,
title = "First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λc+ →pK+π-",
abstract = "We report the first observation of the decay Λc+→pK+π- using a 980 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e- collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Λc+→pK+π-)/B(Λc+→pK-π+)=(2.35±0.27±0.21)×10-3, where the uncertainties are statistical and systematic, respectively.",
author = "{Belle Collaboration} and Yang, {S. B.} and K. Tanida and Kim, {B. H.} and I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and V. Babu and I. Badhrees and Bakich, {A. M.} and E. Barberio and V. Bhardwaj and B. Bhuyan and J. Biswal and G. Bonvicini and A. Bozek and M. Bračko and Browder, {T. E.} and D. Červenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and N. Dash and Z. DoleŽal and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and N. Gabyshev and A. Garmash and V. Gaur and R. Gillard and Goh, {Y. M.} and P. Goldenzweig and D. Greenwald and J. Grygier and J. Haba and P. Hamer",
year = "2016",
month = "6",
day = "27",
doi = "10.1103/PhysRevLett.117.011801",
language = "English",
volume = "117",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "1",

}

First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon : Λc+ →pK+π-. / Belle Collaboration.

In: Physical Review Letters, Vol. 117, No. 1, 011801, 27.06.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon

T2 - Λc+ →pK+π-

AU - Belle Collaboration

AU - Yang, S. B.

AU - Tanida, K.

AU - Kim, B. H.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, N.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gaur, V.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Goldenzweig, P.

AU - Greenwald, D.

AU - Grygier, J.

AU - Haba, J.

AU - Hamer, P.

PY - 2016/6/27

Y1 - 2016/6/27

N2 - We report the first observation of the decay Λc+→pK+π- using a 980 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e- collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Λc+→pK+π-)/B(Λc+→pK-π+)=(2.35±0.27±0.21)×10-3, where the uncertainties are statistical and systematic, respectively.

AB - We report the first observation of the decay Λc+→pK+π- using a 980 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e- collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Λc+→pK+π-)/B(Λc+→pK-π+)=(2.35±0.27±0.21)×10-3, where the uncertainties are statistical and systematic, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84977619856&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84977619856&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.117.011801

DO - 10.1103/PhysRevLett.117.011801

M3 - Article

AN - SCOPUS:84977619856

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

M1 - 011801

ER -