Measurement of the time-dependent CP asymmetries in Bs 0→ J/ψKS 0

The Lhcb Collaboration

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Abstract: The first measurement of decay-time-dependent CP asymmetries in the decay Bs 0 → J/ψKS 0 and an updated measurement of the ratio of branching fractions ℬ(formula presented.)→J/ψ(formula presented.)$$ \mathrm{\mathcal{B}}\left({B}_{\mathrm{s}}^0\to J/\psi{K}_{\mathrm{S}}^0\right)/\mathrm{\mathcal{B}}\left({B}^0\to J/\psi {K}_{\mathrm{S}}^0\right) $$ is measured to be0.0431±0.0017stat±0.0012syst±0.0025fs/fd,$$ 0.0431\pm 0.0017\left(\mathrm{stat}\right)\pm 0.0012\left(\mathrm{syst}\right)\pm 0.0025\left({f}_s/{f}_d\right), $$where the last uncertainty is due to the knowledge of the Bs 0 and B0 production fractions.[Figure not available: see fulltext.]

Original languageEnglish (US)
Article number131
JournalJournal of High Energy Physics
Volume2015
Issue number6
DOIs
StatePublished - Jun 27 2015

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asymmetry
decay

Keywords

  • B physics
  • Branching fraction
  • CP violation
  • Flavor physics
  • Hadron-Hadron Scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Measurement of the time-dependent CP asymmetries in Bs 0→ J/ψKS 0 . / The Lhcb Collaboration.

In: Journal of High Energy Physics, Vol. 2015, No. 6, 131, 27.06.2015.

Research output: Contribution to journalArticle

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title = "Measurement of the time-dependent CP asymmetries in Bs 0→ J/ψKS 0",
abstract = "Abstract: The first measurement of decay-time-dependent CP asymmetries in the decay Bs 0 → J/ψKS 0 and an updated measurement of the ratio of branching fractions ℬ(formula presented.)→J/ψ(formula presented.)$$ \mathrm{\mathcal{B}}\left({B}_{\mathrm{s}}^0\to J/\psi{K}_{\mathrm{S}}^0\right)/\mathrm{\mathcal{B}}\left({B}^0\to J/\psi {K}_{\mathrm{S}}^0\right) $$ is measured to be0.0431±0.0017stat±0.0012syst±0.0025fs/fd,$$ 0.0431\pm 0.0017\left(\mathrm{stat}\right)\pm 0.0012\left(\mathrm{syst}\right)\pm 0.0025\left({f}_s/{f}_d\right), $$where the last uncertainty is due to the knowledge of the Bs 0 and B0 production fractions.[Figure not available: see fulltext.]",
keywords = "B physics, Branching fraction, CP violation, Flavor physics, Hadron-Hadron Scattering",
author = "{The Lhcb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and Marina Artuso and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and Bel, {L. J.} and I. Belyaev and Blusk, {Steven Roy} and Tomasz Skwarnicki and Sheldon Stone",
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AU - The Lhcb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreotti, M.

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AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Artuso, Marina

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Bel, L. J.

AU - Belyaev, I.

AU - Blusk, Steven Roy

AU - Skwarnicki, Tomasz

AU - Stone, Sheldon

PY - 2015/6/27

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N2 - Abstract: The first measurement of decay-time-dependent CP asymmetries in the decay Bs 0 → J/ψKS 0 and an updated measurement of the ratio of branching fractions ℬ(formula presented.)→J/ψ(formula presented.)$$ \mathrm{\mathcal{B}}\left({B}_{\mathrm{s}}^0\to J/\psi{K}_{\mathrm{S}}^0\right)/\mathrm{\mathcal{B}}\left({B}^0\to J/\psi {K}_{\mathrm{S}}^0\right) $$ is measured to be0.0431±0.0017stat±0.0012syst±0.0025fs/fd,$$ 0.0431\pm 0.0017\left(\mathrm{stat}\right)\pm 0.0012\left(\mathrm{syst}\right)\pm 0.0025\left({f}_s/{f}_d\right), $$where the last uncertainty is due to the knowledge of the Bs 0 and B0 production fractions.[Figure not available: see fulltext.]

AB - Abstract: The first measurement of decay-time-dependent CP asymmetries in the decay Bs 0 → J/ψKS 0 and an updated measurement of the ratio of branching fractions ℬ(formula presented.)→J/ψ(formula presented.)$$ \mathrm{\mathcal{B}}\left({B}_{\mathrm{s}}^0\to J/\psi{K}_{\mathrm{S}}^0\right)/\mathrm{\mathcal{B}}\left({B}^0\to J/\psi {K}_{\mathrm{S}}^0\right) $$ is measured to be0.0431±0.0017stat±0.0012syst±0.0025fs/fd,$$ 0.0431\pm 0.0017\left(\mathrm{stat}\right)\pm 0.0012\left(\mathrm{syst}\right)\pm 0.0025\left({f}_s/{f}_d\right), $$where the last uncertainty is due to the knowledge of the Bs 0 and B0 production fractions.[Figure not available: see fulltext.]

KW - B physics

KW - Branching fraction

KW - CP violation

KW - Flavor physics

KW - Hadron-Hadron Scattering

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DO - 10.1007/JHEP06(2015)131

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