Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays

LHCb Collaboration; R. Aaij; A.S.W. Abdelmotteleb; C. Abellan Beteta; F. Abudinén; T. Ackernley; B. Adeva; M. Adinolfi; Kristof de Bruyn; Mick Mulder; Gerco Onderwater; Maarten van Veghel

doi:10.1103/PhysRevD.108.012023

Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays

LHCb Collaboration, R. Aaij, A.S.W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, Kristof de Bruyn, Mick Mulder, Gerco Onderwater, Maarten van Veghel

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

13 Citations (Scopus)

74 Downloads (Pure)

Abstract

An amplitude analysis of Λc+→pK-π+ decays together with a measurement of the Λc+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. The mass and width of the Λ(2000) state are also determined. A significant Λc+ polarization is found. A large sensitivity of the Λc+→pK-π+ decay to the polarization is seen, making the amplitude model suitable for Λc+ polarization measurements in other systems. © 2023 CERN.

Original language	English
Article number	012023
Number of pages	27
Journal	Physical Review D
Volume	108
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.108.012023
Publication status	Published - 28-Jul-2023

Access to Document

10.1103/PhysRevD.108.012023Licence: CC BY

Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decaysFinal publisher's version, 17.3 MBLicence: CC BY

Handle.net

Persistent link

Cite this

LHCb Collaboration, Aaij, R., Abdelmotteleb, A. S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., de Bruyn, K., Mulder, M., Onderwater, G., & van Veghel , M. (2023). Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays. Physical Review D, 108(1), Article 012023 . https://doi.org/10.1103/PhysRevD.108.012023

@article{d6f586a0a03940bd963acda255fa4fcb,

title = "Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays",

abstract = "An amplitude analysis of Λc+→pK-π+ decays together with a measurement of the Λc+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. The mass and width of the Λ(2000) state are also determined. A significant Λc+ polarization is found. A large sensitivity of the Λc+→pK-π+ decay to the polarization is seen, making the amplitude model suitable for Λc+ polarization measurements in other systems. {\textcopyright} 2023 CERN.",

author = "{LHCb Collaboration} and R. Aaij and A.S.W. Abdelmotteleb and {Abellan Beteta}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and {de Bruyn}, Kristof and Mick Mulder and Gerco Onderwater and {van Veghel}, Maarten",

year = "2023",

month = jul,

day = "28",

doi = "10.1103/PhysRevD.108.012023",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "AMER PHYSICAL SOC",

number = "1",

}

LHCb Collaboration, Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, de Bruyn, K , Mulder, M, Onderwater, G & van Veghel , M 2023, 'Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays', Physical Review D, vol. 108, no. 1, 012023 . https://doi.org/10.1103/PhysRevD.108.012023

TY - JOUR

T1 - Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A.S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - de Bruyn, Kristof

AU - Mulder, Mick

AU - Onderwater, Gerco

AU - van Veghel , Maarten

PY - 2023/7/28

Y1 - 2023/7/28

N2 - An amplitude analysis of Λc+→pK-π+ decays together with a measurement of the Λc+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. The mass and width of the Λ(2000) state are also determined. A significant Λc+ polarization is found. A large sensitivity of the Λc+→pK-π+ decay to the polarization is seen, making the amplitude model suitable for Λc+ polarization measurements in other systems. © 2023 CERN.

AB - An amplitude analysis of Λc+→pK-π+ decays together with a measurement of the Λc+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. The mass and width of the Λ(2000) state are also determined. A significant Λc+ polarization is found. A large sensitivity of the Λc+→pK-π+ decay to the polarization is seen, making the amplitude model suitable for Λc+ polarization measurements in other systems. © 2023 CERN.

U2 - 10.1103/PhysRevD.108.012023

DO - 10.1103/PhysRevD.108.012023

M3 - Article

SN - 1550-7998

VL - 108

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 012023

ER -

Amplitude analysis of the Λc+ →pK-π+ decay and Λc+ baryon polarization measurement in semileptonic beauty hadron decays

Abstract

Access to Document

Handle.net

Fingerprint

Cite this