Evidence for the two-body charmless baryonic decay B+→ pΛ¯

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, LA Everse, L. Anderlini, G. Andreassi, M. Andreotti, J.E. AndrewsR. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, I. Babuschkin, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, M. Ferro-Luzzi, T. Ketel, R. F. Koopman, J. van Leerdam, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, H. Snoek, B. Storaci, V. Syropoulos, J. van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, The LHCb collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A search for the rare two-body charmless baryonic decay B+→ pΛ¯ is performed with pp collision data, corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. An excess of B+→pΛ¯ candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. The branching fraction, measured using the B+→KS 0π+ decay for normalisation,(Formula Presented.)where the first uncertainty is statistical and the second systematic.

Original languageEnglish
Article number162
JournalJournal of High Energy Physics
Volume2017
Issue number4
DOIs
Publication statusPublished - 28 Apr 2017

Keywords

  • B physics
  • Branching fraction
  • Flavor physics
  • Hadron-Hadron scattering (experiments)

Fingerprint

Dive into the research topics of 'Evidence for the two-body charmless baryonic decay B<sup>+</sup>→ pΛ¯'. Together they form a unique fingerprint.

Cite this