Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays
Abstract A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−...
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2022
|
| Online Access: | https://hdl.handle.net/1721.1/141918 |
| _version_ | 1826201786279526400 |
|---|---|
| author | Aaij, R. Abdelmotteleb, A. S. W. Abellán Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Aaij, R. Abdelmotteleb, A. S. W. Abellán Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. |
| author_sort | Aaij, R. |
| collection | MIT |
| description | Abstract
A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+ → (ψ2(3823) → J/ψη)K+ and B+ → (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. |
| first_indexed | 2024-09-23T11:57:11Z |
| format | Article |
| id | mit-1721.1/141918 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:57:11Z |
| publishDate | 2022 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1419182023-07-28T17:30:53Z Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays Aaij, R. Abdelmotteleb, A. S. W. Abellán Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Massachusetts Institute of Technology. Department of Physics Abstract A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+ → (ψ2(3823) → J/ψη)K+ and B+ → (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. 2022-04-19T12:51:29Z 2022-04-19T12:51:29Z 2022-04-08 2022-04-17T03:37:52Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/141918 Journal of High Energy Physics. 2022 Apr 08;2022(4):46 PUBLISHER_CC en https://doi.org/10.1007/JHEP04(2022)046 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Aaij, R. Abdelmotteleb, A. S. W. Abellán Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title | Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title_full | Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title_fullStr | Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title_full_unstemmed | Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title_short | Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |
| title_sort | study of charmonium and charmonium like contributions in b j ψηk decays |
| url | https://hdl.handle.net/1721.1/141918 |
| work_keys_str_mv | AT aaijr studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT abdelmottelebasw studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT abellanbetetac studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT abudinenf studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT ackernleyt studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT adevab studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT adinolfim studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT afsharniah studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT agapopoulouc studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT aidalaca studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT aiolas studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT ajaltouniz studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT akars studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT albrechtj studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT alessiof studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays AT alexanderm studyofcharmoniumandcharmoniumlikecontributionsinbjpsēkdecays |