Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory
Assuming that X(3872) is a mixture between 2P charmonium and D¯D⁎ molecular states with JPC=1++, an analysis of X(3872) radiative decays into J/ψγ and ψ(2S)γ is presented. The modification of the radiative branching ratio due to possible constructive or destructive interferences between the meson-lo...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319305702 |
| _version_ | 1811233596606775296 |
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| author | E. Cincioglu A. Ozpineci |
| author_facet | E. Cincioglu A. Ozpineci |
| author_sort | E. Cincioglu |
| collection | DOAJ |
| description | Assuming that X(3872) is a mixture between 2P charmonium and D¯D⁎ molecular states with JPC=1++, an analysis of X(3872) radiative decays into J/ψγ and ψ(2S)γ is presented. The modification of the radiative branching ratio due to possible constructive or destructive interferences between the meson-loop and the short-distance contact term, which is modeled by a charm quark loop, is shown. The model predictions are shown to be compatible with the experimentally determined ratio of the mentioned branching fractions for a wide range of the X(3872) charmonium content. In the case of the destructive interference, a strong restriction on the charmonium admixture is found. |
| first_indexed | 2024-04-12T11:22:27Z |
| format | Article |
| id | doaj.art-be59e243bc914f1e9b63184cb129bc15 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-12T11:22:27Z |
| publishDate | 2019-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-be59e243bc914f1e9b63184cb129bc152022-12-22T03:35:19ZengElsevierPhysics Letters B0370-26932019-10-01797Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theoryE. Cincioglu0A. Ozpineci1Corresponding author.; Department of Physics, Middle East Technical University, Ankara, TurkeyDepartment of Physics, Middle East Technical University, Ankara, TurkeyAssuming that X(3872) is a mixture between 2P charmonium and D¯D⁎ molecular states with JPC=1++, an analysis of X(3872) radiative decays into J/ψγ and ψ(2S)γ is presented. The modification of the radiative branching ratio due to possible constructive or destructive interferences between the meson-loop and the short-distance contact term, which is modeled by a charm quark loop, is shown. The model predictions are shown to be compatible with the experimentally determined ratio of the mentioned branching fractions for a wide range of the X(3872) charmonium content. In the case of the destructive interference, a strong restriction on the charmonium admixture is found.http://www.sciencedirect.com/science/article/pii/S0370269319305702 |
| spellingShingle | E. Cincioglu A. Ozpineci Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory Physics Letters B |
| title | Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory |
| title_full | Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory |
| title_fullStr | Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory |
| title_full_unstemmed | Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory |
| title_short | Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory |
| title_sort | radiative decay of the x 3872 as a mixed molecule charmonium state in effective field theory |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319305702 |
| work_keys_str_mv | AT ecincioglu radiativedecayofthex3872asamixedmoleculecharmoniumstateineffectivefieldtheory AT aozpineci radiativedecayofthex3872asamixedmoleculecharmoniumstateineffectivefieldtheory |