New measurement of the amplitude of the CP conserving decay K0S → π+ π- π0

Y. Zou; A. Beretvas; A. Caracappa; T. Devlin; H. T. Diehl; K. Krueger; S. S. Myung; S. Teige; G. B. Thomson; N. Grossman; K. Heller; K. Thorne; P. Border; M. J. Longo

doi:10.1016/0370-2693(96)00040-8

New measurement of the amplitude of the CP conserving decay K⁰_S → π⁺ π^- π⁰

Y. Zou, A. Beretvas, A. Caracappa, T. Devlin, H. T. Diehl, K. Krueger, S. S. Myung, S. Teige, G. B. Thomson, N. Grossman, K. Heller, K. Thorne, P. Border, M. J. Longo

Physics and Astronomy (Twin Cities)

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

12 Scopus citations

Abstract

We measured the amplitude for the CP-symmetry-conserving decay K⁰_S → π⁺ π^- π⁰ in an experiment at Fermilab. This decay manifests itself as a time dependent charge asymmetry in the interference between the coherent K_S and K_L decays. We collected 1.1 million π⁺ π^- π⁰ decays between 0.6 and 7.6 K_S lifetimes from the production target using a detector that consisted of a magnetic spectrometer and a lead glass electromagnetic calorimeter. The ratio ρ_+-0 of the CP-conserving K_S amplitude to the K_L amplitude is found to be: | p_+-0 |= 0.039^+0.009_-0.006 (stat.) ±0.005 (syst.), with a phase φ_p = -9° ± 18°. This yields a branching ratio of (4.81^+2.2_-1.6 (stat.) ±1.1(syst.)) × 10^-7.

Original language	English (US)
Pages (from-to)	362-366
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	369
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(96)00040-8
State	Published - Feb 29 1996

Publisher link

10.1016/0370-2693(96)00040-8

Find It

Find It at U of M Libraries

Cite this

Zou, Y., Beretvas, A., Caracappa, A., Devlin, T., Diehl, H. T., Krueger, K., Myung, S. S., Teige, S., Thomson, G. B., Grossman, N., Heller, K., Thorne, K., Border, P., & Longo, M. J. (1996). New measurement of the amplitude of the CP conserving decay K⁰_S → π⁺ π^- π⁰. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 369(3-4), 362-366. https://doi.org/10.1016/0370-2693(96)00040-8

Zou, Y, Beretvas, A, Caracappa, A, Devlin, T, Diehl, HT, Krueger, K, Myung, SS, Teige, S, Thomson, GB, Grossman, N, Heller, K, Thorne, K, Border, P & Longo, MJ 1996, 'New measurement of the amplitude of the CP conserving decay K⁰_S → π⁺ π^- π⁰', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 369, no. 3-4, pp. 362-366. https://doi.org/10.1016/0370-2693(96)00040-8

@article{895fcdcec90e42fdb875ea9f636dc0e8,

title = "New measurement of the amplitude of the CP conserving decay K0S → π+ π- π0",

abstract = "We measured the amplitude for the CP-symmetry-conserving decay K0S → π+ π- π0 in an experiment at Fermilab. This decay manifests itself as a time dependent charge asymmetry in the interference between the coherent KS and KL decays. We collected 1.1 million π+ π- π0 decays between 0.6 and 7.6 KS lifetimes from the production target using a detector that consisted of a magnetic spectrometer and a lead glass electromagnetic calorimeter. The ratio ρ+-0 of the CP-conserving KS amplitude to the KL amplitude is found to be: | p+-0 |= 0.039+0.009-0.006 (stat.) ±0.005 (syst.), with a phase φp = -9° ± 18°. This yields a branching ratio of (4.81+2.2-1.6 (stat.) ±1.1(syst.)) × 10-7.",

author = "Y. Zou and A. Beretvas and A. Caracappa and T. Devlin and Diehl, {H. T.} and K. Krueger and Myung, {S. S.} and S. Teige and Thomson, {G. B.} and N. Grossman and K. Heller and K. Thorne and P. Border and Longo, {M. J.}",

year = "1996",

month = feb,

day = "29",

doi = "10.1016/0370-2693(96)00040-8",

language = "English (US)",

volume = "369",

pages = "362--366",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - New measurement of the amplitude of the CP conserving decay K0S → π+ π- π0

AU - Zou, Y.

AU - Beretvas, A.

AU - Caracappa, A.

AU - Devlin, T.

AU - Diehl, H. T.

AU - Krueger, K.

AU - Myung, S. S.

AU - Teige, S.

AU - Thomson, G. B.

AU - Grossman, N.

AU - Heller, K.

AU - Thorne, K.

AU - Border, P.

AU - Longo, M. J.

PY - 1996/2/29

Y1 - 1996/2/29

N2 - We measured the amplitude for the CP-symmetry-conserving decay K0S → π+ π- π0 in an experiment at Fermilab. This decay manifests itself as a time dependent charge asymmetry in the interference between the coherent KS and KL decays. We collected 1.1 million π+ π- π0 decays between 0.6 and 7.6 KS lifetimes from the production target using a detector that consisted of a magnetic spectrometer and a lead glass electromagnetic calorimeter. The ratio ρ+-0 of the CP-conserving KS amplitude to the KL amplitude is found to be: | p+-0 |= 0.039+0.009-0.006 (stat.) ±0.005 (syst.), with a phase φp = -9° ± 18°. This yields a branching ratio of (4.81+2.2-1.6 (stat.) ±1.1(syst.)) × 10-7.

AB - We measured the amplitude for the CP-symmetry-conserving decay K0S → π+ π- π0 in an experiment at Fermilab. This decay manifests itself as a time dependent charge asymmetry in the interference between the coherent KS and KL decays. We collected 1.1 million π+ π- π0 decays between 0.6 and 7.6 KS lifetimes from the production target using a detector that consisted of a magnetic spectrometer and a lead glass electromagnetic calorimeter. The ratio ρ+-0 of the CP-conserving KS amplitude to the KL amplitude is found to be: | p+-0 |= 0.039+0.009-0.006 (stat.) ±0.005 (syst.), with a phase φp = -9° ± 18°. This yields a branching ratio of (4.81+2.2-1.6 (stat.) ±1.1(syst.)) × 10-7.

UR - http://www.scopus.com/inward/record.url?scp=0041628973&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0041628973&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(96)00040-8

DO - 10.1016/0370-2693(96)00040-8

M3 - Article

AN - SCOPUS:0041628973

SN - 0370-2693

VL - 369

SP - 362

EP - 366

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

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

IS - 3-4

ER -

New measurement of the amplitude of the CP conserving decay K⁰_S → π⁺ π^- π⁰

Abstract

Publisher link

Find It

Other files and links

Fingerprint

Cite this