Measurement of $B$ meson production fraction ratios in proton-proton collisions at $\sqrt{s}$ = 13 TeV using open-charm and charmonium decays
Production fraction ratios of π΅$^+$, π΅$^0$, and π΅$^0_π $ mesons are measured in proton-proton collisions at βπ =13 TeV using a special dataset recorded in 2018 with high-rate triggers designed to collect an unbiased sample of 1β’010 π hadrons with the CMS experiment at the LHC. These data allow the study of the open-charm decays of π΅ mesons (π΅$_{(π )}$ βπβ’π·$_{(π )}$) where the π· meson decays into fully hadronic final states. By utilizing known branching fractions and precise theoretical calculations, production fraction ratios as functions of π΅ meson transverse momentum (π$_T$) and rapidity (π¦) are measured using open-charm decays in the kinematic range of 8<π$_T$<60 GeV and |π¦| <2.25. In addition, the same dataset is used to measure the relative production fraction ratios with the charmonium decay channels [π΅$_{(π )}$ βπβ’π½/π with π indicating a πΎ$^+$, πΎ*(892)$^0$, or πβ‘(1020) meson] where the π½/π meson decays into a pair of muons. The open-charm results are used to normalize the relative production fraction ratios obtained from the charmonium samples. Measurements of the ratios of branching fractions of π΅ meson decays to charmonium and open-charm final states are also reported, which will improve the world-average values of these ratios. Finally, we test isospin invariance in π΅ meson production in proton-proton collisions and observe that it holds within the experimental precision.
Authors
- L. Wezenbeek (ORCID: https://orcid.org/0000-0001-6952-891X)
- W. Adam (ORCID: https://orcid.org/0000-0001-9099-4341)
- Schieck
- J. Knolle (ORCID: https://orcid.org/0000-0002-4781-5704)
- M. A. Shahzad (ORCID: https://orcid.org/0009-0000-1458-5941)
- J. W. Andrejkovic
- C. Hensel
- D. MΓΌller (ORCID: https://orcid.org/0000-0002-1752-4527)
- Farha Anjum Khan
- I. Makarenko
- I Mikulec (ORCID: https://orcid.org/0000-0003-0385-2746)
- J. Van Der Linden
- C Sturm for the KaoS Collaboration
- D. Ocampo Henao
- A. Hayrapetyan
- P. S. Hussain
- M. Dragicevic
- D. Schwarz (ORCID: https://orcid.org/0000-0002-3821-7331)
- T. Janssen
- P. Mastrapasqua
- J. De Favereau De Jeneret
- N. Breugelmans
- C. Giordano (ORCID: https://orcid.org/0000-0001-6317-2481)
- A. R. Tumasyan
- T. Bergauer
- W. Waltenberger (ORCID: https://orcid.org/0000-0002-6215-7228)
- H. Brandao Malbouisson
- M. Vanden Bemden
- A. K. Das
- S. Dansana
- N Krammer (ORCID: https://orcid.org/0000-0002-0548-0985)
- P. Kashko
- W. L. AldΓ‘ JΓΊnior (ORCID: https://orcid.org/0000-0001-5855-9817)
- M. Soeiro
- A. Khalilzadeh
- T. Menezes De Oliveira
- V. Makarenko
- P. Malek
- M. Shooshtari
- J. Bierkens
- S. Turkcapar
- F. Heyen
- G De Lentdecker
- C Mora Herrera
- M. Tytgat
- M. Sonawane
- N. Van Den Bossche
- B Bilin
- J. Lidrych
- D. Liko
- K Skovpen
- R. SchΓΆfbeck
- M. De Coen
- H. Evard
- S. Van Putte
- S. Lowette
- D. Dobur (ORCID: https://orcid.org/0000-0003-0012-4866)
- G. Gokbulut
- A. Benecke (ORCID: https://orcid.org/0000-0003-0252-3609)
- G. Bruno
- C. Delaere
- J. D'Hondt (ORCID: https://orcid.org/0000-0002-9598-6241)
- D. Vannerom
- V. Lemaitre
- A. Bethani
- Wulz C. -E.
- L. Benato (ORCID: https://orcid.org/0000-0001-5135-7489)
- A. Malara (ORCID: https://orcid.org/0000-0001-8645-9282)
- P. Vanlaer
- P. Rebello Teles
- M. Delcourt
- S. Bein
- A. Vilela Pereira (ORCID: https://orcid.org/0000-0003-3177-4626)
- B. Clerbaux
- L. Thomas
- G. A. Alves (ORCID: https://orcid.org/0000-0002-8369-1446)
- E. J. Tonelli Manganote
- G. P. Van Onsem
- A. Giammanco
- M. Jeitler (ORCID: https://orcid.org/0000-0002-5141-9560)
- I. De Bruyn (ORCID: https://orcid.org/0000-0003-1704-4360)
- P. Gianneios
- C. Vander Velde
- D. Marckx
- E. Coelho
- L. Lambrecht
- A. O. Guzel
- A. De Moor
- J. Vandenbroeck
- M. Barroso Ferreira Filho
- H. Kwon
- J. N. Song
- T. Van Laer
- Y. Hong
- F. Zhang
- L. Favart
- S. Tavernier
- A. J. Li
- P. Van Mechelen
- A. Cappati
- M. Barroso Ferreira Filho
Publication Details
- Journal
- KITopen
- Published
- 2026-10-16
- DOI
- https://doi.org/10.5445/ir/1000198044
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00