Measurement of the Bs0  → ϕϕ branching fraction and search for the decay B0 → ϕϕ

The LHCb collaboration

doi:10.1007/JHEP10(2015)053

Measurement of the B_s⁰ → ϕϕ branching fraction and search for the decay B⁰ → ϕϕ

The LHCb collaboration

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

19 Scopus citations

Abstract

Using a dataset corresponding to an integrated luminosity of 3.0 fb⁻¹ collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B_s⁰ → ϕϕ branching fraction is measured to be (formula presented.)where f_s/f_d represents the ratio of the B_s⁰to B⁰ production cross-sections, and the B⁰ → ϕK^*(892)⁰ decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B⁰ → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as(formula presented.)at 90% confidence level. This is a factor of seven improvement compared to the previous best limit.

Original language	English
Article number	53
Journal	Journal of High Energy Physics
Volume	2015
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2015)053
State	Published - 1 Oct 2015
Externally published	Yes

Keywords

B physics
Branching fraction
Flavor physics
Hadron-Hadron Scattering

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10.1007/JHEP10(2015)053

Cite this

@article{7f9c1f3b8b3945a592162f1e8b58e932,

title = "Measurement of the Bs0 → ϕϕ branching fraction and search for the decay B0 → ϕϕ",

abstract = "Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the Bs0 → ϕϕ branching fraction is measured to be (formula presented.)where fs/fd represents the ratio of the Bs0to B0 production cross-sections, and the B0 → ϕK*(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as(formula presented.)at 90\% confidence level. This is a factor of seven improvement compared to the previous best limit.",

keywords = "B physics, Branching fraction, 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 G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. and F. Archilli and P. d{\textquoteright}Argent and A. Artamonov and M. Artuso and E. Aslanides 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 V. Bellee and Milanes, \{D. A.\}",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = oct,

day = "1",

doi = "10.1007/JHEP10(2015)053",

language = "English",

volume = "2015",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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TY - JOUR

T1 - Measurement of the Bs0 → ϕϕ branching fraction and search for the decay B0 → ϕϕ

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 - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - d’Argent, P.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

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 - Bellee, V.

AU - Milanes, D. A.

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the Bs0 → ϕϕ branching fraction is measured to be (formula presented.)where fs/fd represents the ratio of the Bs0to B0 production cross-sections, and the B0 → ϕK*(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as(formula presented.)at 90% confidence level. This is a factor of seven improvement compared to the previous best limit.

AB - Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the Bs0 → ϕϕ branching fraction is measured to be (formula presented.)where fs/fd represents the ratio of the Bs0to B0 production cross-sections, and the B0 → ϕK*(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as(formula presented.)at 90% confidence level. This is a factor of seven improvement compared to the previous best limit.

KW - B physics

KW - Branching fraction

KW - Flavor physics

KW - Hadron-Hadron Scattering

UR - https://www.scopus.com/pages/publications/84973441921

U2 - 10.1007/JHEP10(2015)053

DO - 10.1007/JHEP10(2015)053

M3 - Article

AN - SCOPUS:84973441921

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 53

ER -

Measurement of the B_s⁰ → ϕϕ branching fraction and search for the decay B⁰ → ϕϕ

Abstract

Keywords

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