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Showing 1–15 of 15 results
Advanced filters: Author: L. WISLICKI Clear advanced filters

  • The LHCb experiment at CERN has observed significant asymmetries between the decay rates of the beauty baryon and its CP-conjugated antibaryon, thus demonstrating CP violation in baryon decays.

    • R. Aaij
    • A. S. W. Abdelmotteleb
    • G. Zunica
    ResearchOpen Access
    Nature
    Volume: 643, P: 1223-1228

  • CPT violation could manifest itself in annihilating positronium events, but searching for this effect would require to know the spin of the annihilating system. Here, the authors do this using a positron-emission tomography scanner, finding no violation with a statistical precision of 10−4.

    • P. Moskal
    • A. Gajos
    • W. Wiślicki
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • The Large Hadron Collider beauty collaboration reports a test of lepton flavour universality in decays of bottom mesons into strange mesons and a charged lepton pair, finding evidence of a violation of this principle postulated in the standard model.

    • R. Aaij
    • C. Abellán Beteta
    • G. Zunica
    ResearchOpen Access
    Nature Physics
    Volume: 18, P: 277-282

  • The accurate determination of quark mixing parameters is essential for the understanding of the Standard Model. The LHCb collaboration now reports the coupling strength of the b quark to the u quark through the measurement of a baryonic decay mode.

    • R. Aaij
    • B. Adeva
    • L. Zhong
    ResearchOpen Access
    Nature Physics
    Volume: 11, P: 743-747

  • CP violation has deep implications for particle physics and cosmology. Previously observed only in meson decays, signs of CP violation have now been spotted in baryon decays by analysing the proton–proton collision data from the LHCb detector.

    • R. Aaij
    • B. Adeva
    • S. Zucchelli
    ResearchOpen Access
    Nature Physics
    Volume: 13, P: 391-396

    • L. WISLICKI
    Books & Arts
    Nature
    Volume: 207, P: 119

    • L. WISLICKI
    Books & Arts
    Nature
    Volume: 202, P: 1045

  • Combined analysis of proton-proton collision data from the Large Hadron Collider at CERN by the CMS and LHCb collaborations leads to the observation of the extremely rare decay of the strange B meson into muons; the result is compatible with the standard model of particle physics, and does not show any signs of new physics, such as supersymmetry.

    • V. Khachatryan
    • A.M. Sirunyan
    • E. Pesen
    ResearchOpen Access
    Nature
    Volume: 522, P: 68-72

  • The LHCb Collaboration reports the observation of an exotic, narrow, tetraquark state that contains two charm quarks, an up antiquark and a down antiquark.

    • R. Aaij
    • A. S. W. Abdelmotteleb
    • G. Zunica
    ResearchOpen Access
    Nature Physics
    Volume: 18, P: 751-754