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Phys Rev Lett 2021 Apr;126(16):161802

Laboratoire Leprince-ringuet (llr), Palaiseau, France.

We present an angular analysis of the B^{+}→K^{*+}(→K_{S}^{0}π^{+})μ^{+}μ^{-} decay using 9 fb^{-1} of pp collision data collected with the LHCb experiment. For the first time, the full set of CP-averaged angular observables is measured in intervals of the dimuon invariant mass squared. Local deviations from standard model predictions are observed, similar to those in previous LHCb analyses of the isospin-partner B^{0}→K^{*0}μ^{+}μ^{-} decay. The global tension is dependent on which effective couplings are considered and on the choice of theory nuisance parameters.

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http://dx.doi.org/10.1103/PhysRevLett.126.161802 | DOI Listing |

April 2021

Anticancer Res 2021 Apr;41(4):2033-2038

Department of Gynecological Oncology and Tumor Surgery, European Competence Center for Ovarian Cancer, Charité Campus Virchow Clinic, Berlin, Germany;

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http://dx.doi.org/10.21873/anticanres.14971 | DOI Listing |

April 2021

J Psychosom Obstet Gynaecol 2020 Nov 30:1-6. Epub 2020 Nov 30.

Department of Gynecology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.

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http://dx.doi.org/10.1080/0167482X.2020.1850684 | DOI Listing |

November 2020

Eur Phys J C Part Fields 2018 17;78(12):1019. Epub 2018 Dec 17.

Yandex School of Data Analysis, Moscow, Russia.

A Dalitz plot analysis of decays is performed using data samples of collisions collected with the detector at centre-of-mass energies of and , corresponding to a total integrated luminosity of . A satisfactory description of the data is obtained when including a contribution representing an exotic resonant state. The significance of this exotic resonance is more than three standard deviations, while its mass and width are and , respectively. The spin-parity assignments and are both consistent with the data. In addition, the first measurement of the branching fraction is performed and gives where the first uncertainty is statistical, the second systematic, and the third is due to limited knowledge of external branching fractions.

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http://dx.doi.org/10.1140/epjc/s10052-018-6447-z | DOI Listing |

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383874 | PMC |

December 2018

Eur Phys J C Part Fields 2015;75(7):311. Epub 2015 Jul 4.

Sezione INFN di Roma La Sapienza, Rome, Italy.

The production of the [Formula: see text] state in proton-proton collisions is probed via its decay to the [Formula: see text] final state with the LHCb detector, in the rapidity range [Formula: see text] and in the meson transverse-momentum range [Formula: see text]. The cross-section for prompt production of [Formula: see text] mesons relative to the prompt [Formula: see text] cross-section is measured, for the first time, to be [Formula: see text] at a centre-of-mass energy [Formula: see text] using data corresponding to an integrated luminosity of 0.7 fb[Formula: see text], and [Formula: see text] at [Formula: see text] using 2.0 fb[Formula: see text]. The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the [Formula: see text] and [Formula: see text] decays to the [Formula: see text] final state. In addition, the inclusive branching fraction of [Formula: see text]-hadron decays into [Formula: see text] mesons is measured, for the first time, to be [Formula: see text], where the third uncertainty includes also the uncertainty on the [Formula: see text] inclusive branching fraction from [Formula: see text]-hadron decays. The difference between the [Formula: see text] and [Formula: see text] meson masses is determined to be [Formula: see text].

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http://dx.doi.org/10.1140/epjc/s10052-015-3502-x | DOI Listing |

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4498677 | PMC |

July 2015