The oscillation frequency, Δ , of 0 mesons is measured using semileptonic decays with a − or ∗− meson in the final state. The data sample corresponds to 3.0 −1 of pp collisions, collected by the LHCb experiment at centre-of-mass energies √ = 7 and 8 . A combination of the two decay modes gives Δ=(505.0±2.1±1.0)−1 , where the first uncertainty is statistical and the second is systematic. This is the most precise single measurement of this parameter. It is consistent with the current world average and has similar precision.

A precise measurement of the B0meson oscillation frequency / Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves Jr, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 76:7(2016). [10.1140/epjc/s10052-016-4250-2]

A precise measurement of the B0meson oscillation frequency

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2016

Abstract

The oscillation frequency, Δ , of 0 mesons is measured using semileptonic decays with a − or ∗− meson in the final state. The data sample corresponds to 3.0 −1 of pp collisions, collected by the LHCb experiment at centre-of-mass energies √ = 7 and 8 . A combination of the two decay modes gives Δ=(505.0±2.1±1.0)−1 , where the first uncertainty is statistical and the second is systematic. This is the most precise single measurement of this parameter. It is consistent with the current world average and has similar precision.
2016
Invariant Mass Systematic Uncertainty Primary Vertex Semileptonic Decay Combinatorial Background
01 Pubblicazione su rivista::01a Articolo in rivista
A precise measurement of the B0meson oscillation frequency / Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves Jr, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 76:7(2016). [10.1140/epjc/s10052-016-4250-2]
File allegati a questo prodotto
File Dimensione Formato  
Aaij2016_Article_APreciseMeasurementOfTheB0B0Me.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.66 MB
Formato Adobe PDF
1.66 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1074119
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 35
  • ???jsp.display-item.citation.isi??? 34
social impact