The first observation of two structures consistent with resonances in the final states Lambda(0)(b)pi(-) and Lambda(0)(b)pi(+) thorn is reported using samples of pp collision data collected by the LHCb experiment at root s = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb(-1). The ground states Sigma(+/-)(b) and Sigma(*+/-)(b) are also confirmed and their masses and widths are precisely measured.
Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C.a., Ajaltouni, Z., et al. (2019). Observation of two resonances in the lambda(0)(b)pi(+/-) systems and precise measurement of sigma(+/-)(b) and sigma(*+/-)(b) properties. PHYSICAL REVIEW LETTERS, 122(1) [10.1103/PhysRevLett.122.012001].
Observation of two resonances in the lambda(0)(b)pi(+/-) systems and precise measurement of sigma(+/-)(b) and sigma(*+/-)(b) properties
Archilli, F.;Santovetti, E.Membro del Collaboration Group
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2019-01-01
Abstract
The first observation of two structures consistent with resonances in the final states Lambda(0)(b)pi(-) and Lambda(0)(b)pi(+) thorn is reported using samples of pp collision data collected by the LHCb experiment at root s = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb(-1). The ground states Sigma(+/-)(b) and Sigma(*+/-)(b) are also confirmed and their masses and widths are precisely measured.| File | Dimensione | Formato | |
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