The first observation of two structures consistent with resonances in the final states Λb0π- and Λb0π+ is reported using samples of pp collision data collected by the LHCb experiment at s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. The ground states Σb± and Σb∗± are also confirmed and their masses and widths are precisely measured.

Observation of Two Resonances in the Λb0 π± Systems and Precise Measurement of Σb± and Σb∗± Properties / Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C.A., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 122:1(2019), p. 012001. [10.1103/PhysRevLett.122.012001]

Observation of Two Resonances in the Λb0 π± Systems and Precise Measurement of Σb± and Σb∗± Properties

Capriotti L.;Casse G.;Sarti A.;Sciubba A.;
2019

Abstract

The first observation of two structures consistent with resonances in the final states Λb0π- and Λb0π+ is reported using samples of pp collision data collected by the LHCb experiment at s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. The ground states Σb± and Σb∗± are also confirmed and their masses and widths are precisely measured.
2019
Charm physics Forward physics Hadron-Hadron scattering Heavy quark production QCD
01 Pubblicazione su rivista::01a Articolo in rivista
Observation of Two Resonances in the Λb0 π± Systems and Precise Measurement of Σb± and Σb∗± Properties / Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C.A., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 122:1(2019), p. 012001. [10.1103/PhysRevLett.122.012001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1310123
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