Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

CMS Collaboration

doi:10.1016/j.physletb.2015.12.020

Angular analysis of the decay B⁰ → K^⁎0μ⁺μ⁻ from pp collisions at √s=8 TeV

CMS Collaboration

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

197 Citations (Scopus)

Abstract

The angular distributions and the differential branching fraction of the decay B⁰→K^⁎(892)⁰μ⁺μ⁻ are studied using data corresponding to an integrated luminosity of 20.5 fb⁻¹ collected with the CMS detector at the LHC in pp collisions at s=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K^⁎(892)⁰ longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

Original language	English
Pages (from-to)	424-448
Number of pages	25
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	753
DOIs	https://doi.org/10.1016/j.physletb.2015.12.020
Publication status	Published - 10 Feb 2016
Externally published	Yes

Keywords

B0 decays
CMS
Physics

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10.1016/j.physletb.2015.12.020

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@article{c1799eed596c4d5fa830c4c4af27d642,

title = "Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV",

abstract = "The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at s=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.",

keywords = "B0 decays, CMS, Physics",

author = "\{CMS Collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and V. Kn{\"u}nz and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and S. Ochesanu and R. Rougny and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} 2015 CERN for the benefit of the CMS Collaboration",

year = "2016",

month = feb,

day = "10",

doi = "10.1016/j.physletb.2015.12.020",

language = "English",

volume = "753",

pages = "424--448",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

AU - CMS Collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Knünz, V.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Bouhali, O.

PY - 2016/2/10

Y1 - 2016/2/10

N2 - The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at s=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

AB - The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at s=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

KW - B0 decays

KW - CMS

KW - Physics

UR - https://www.scopus.com/pages/publications/85040825548

U2 - 10.1016/j.physletb.2015.12.020

DO - 10.1016/j.physletb.2015.12.020

M3 - Article

AN - SCOPUS:85040825548

SN - 0370-2693

VL - 753

SP - 424

EP - 448

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

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

ER -

Angular analysis of the decay B⁰ → K^⁎0μ⁺μ⁻ from pp collisions at √s=8 TeV

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Keywords

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