Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -]
A search for the D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −] decay, where the muon pair does not originate from a resonance, is performed using proton–proton collision data corresponding to an integrated luminosity of 1.0 fb[superscript −1] recorded by the LHCb...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2014
|
| Online Access: | http://hdl.handle.net/1721.1/87571 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1826212467249774592 |
|---|---|
| author | Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Williams, Michael |
| author_sort | Williams, Michael |
| collection | MIT |
| description | A search for the D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −] decay, where the muon pair does not originate from a resonance, is performed using proton–proton collision data corresponding to an integrated luminosity of 1.0 fb[superscript −1] recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D[superscript 0]→π[superscript +]π[superscript −]ϕ(→μ[superscript +]μ[superscript −]), under the assumption of a phase-space model, is found to be B(D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −])/B(D[superscript 0]→π[superscript +]π[superscript −]ϕ(→μ[superscript +]μ[superscript −]))<0.96 at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −])<5.5 × 10[superscript −7] at 90% confidence level. This is the most stringent to date. |
| first_indexed | 2024-09-23T15:22:00Z |
| format | Article |
| id | mit-1721.1/87571 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:22:00Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/875712022-10-02T02:29:04Z Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] Williams, Michael Massachusetts Institute of Technology. Department of Physics Williams, Michael A search for the D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −] decay, where the muon pair does not originate from a resonance, is performed using proton–proton collision data corresponding to an integrated luminosity of 1.0 fb[superscript −1] recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D[superscript 0]→π[superscript +]π[superscript −]ϕ(→μ[superscript +]μ[superscript −]), under the assumption of a phase-space model, is found to be B(D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −])/B(D[superscript 0]→π[superscript +]π[superscript −]ϕ(→μ[superscript +]μ[superscript −]))<0.96 at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D[superscript 0]→π[superscript +]π[superscript −]μ[superscript +]μ[superscript −])<5.5 × 10[superscript −7] at 90% confidence level. This is the most stringent to date. National Science Foundation (U.S.) 2014-05-29T17:12:23Z 2014-05-29T17:12:23Z 2013-11 2013-11 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/87571 Aaij, R. et al. “Search for the Decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -].” Physics Letters B 728 (January 2014): 234–243. https://orcid.org/0000-0001-8285-3346 en_US http://dx.doi.org/10.1016/j.physletb.2013.11.053 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Williams, Michael Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title | Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title_full | Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title_fullStr | Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title_full_unstemmed | Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title_short | Search for the decay D[superscript 0] → π[superscript +]π[superscript -]μ[superscript +]μ[superscript -] |
| title_sort | search for the decay d superscript 0 π superscript π superscript μ superscript μ superscript |
| url | http://hdl.handle.net/1721.1/87571 https://orcid.org/0000-0001-8285-3346 |
| work_keys_str_mv | AT williamsmichael searchforthedecaydsuperscript0psuperscriptpsuperscriptmsuperscriptmsuperscript |