Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays
Abstract Weak decays of the vector $${{D} ^*} ^0$$ D ∗ 0 and $${{B} ^{*0}_{({s})}} $$ B ( s ) ∗ 0 mesons to the $${\mu ^+\mu ^-} $$ μ + μ - final state provide novel potential to test the Standard Model of particle physics. Such processes have extremely small branching fractions as the vector mesons...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-022-10369-y |
| _version_ | 1811341171713114112 |
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| author | F. Abudinén T. Blake U. Egede T. Gershon |
| author_facet | F. Abudinén T. Blake U. Egede T. Gershon |
| author_sort | F. Abudinén |
| collection | DOAJ |
| description | Abstract Weak decays of the vector $${{D} ^*} ^0$$ D ∗ 0 and $${{B} ^{*0}_{({s})}} $$ B ( s ) ∗ 0 mesons to the $${\mu ^+\mu ^-} $$ μ + μ - final state provide novel potential to test the Standard Model of particle physics. Such processes have extremely small branching fractions as the vector mesons are able to decay through electromagnetic and (for the $${{D} ^*} ^0$$ D ∗ 0 meson) strong interactions. Nonetheless, the production of copious quantities of these particles in LHC collisions, and the ability to exploit experimental techniques that can suppress background to low levels, provides good potential to reach interesting sensitivity. The possibility to reconstruct these processes as part of the decay chain of $${{{B} ^-}} $$ B - or $${{B} _{c} ^+} $$ B c + mesons appears particularly attractive due to the clean experimental signature of the displaced vertex. Indeed, published LHCb data on $${{{B} ^-}} \rightarrow {{\pi } ^-} {\mu ^+\mu ^-} $$ B - → π - μ + μ - decays already implies a stringent limit on the branching fraction of $${{D} ^{*0}} \rightarrow {\mu ^+\mu ^-} $$ D ∗ 0 → μ + μ - . Estimates are made on the achievable sensitivity to $${{D} ^{*0}} \rightarrow {\mu ^+\mu ^-} $$ D ∗ 0 → μ + μ - and $${{B} ^{*0}_{({s})}} \rightarrow {\mu ^+\mu ^-} $$ B ( s ) ∗ 0 → μ + μ - decays with the LHCb experiment. |
| first_indexed | 2024-04-13T18:52:55Z |
| format | Article |
| id | doaj.art-8649c063798d4f55944040ed1ab872b0 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-13T18:52:55Z |
| publishDate | 2022-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-8649c063798d4f55944040ed1ab872b02022-12-22T02:34:22ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-05-0182511010.1140/epjc/s10052-022-10369-yProspects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decaysF. Abudinén0T. Blake1U. Egede2T. Gershon3Department of Physics, University of WarwickDepartment of Physics, University of WarwickSchool of Physics and Astronomy, Monash UniversityDepartment of Physics, University of WarwickAbstract Weak decays of the vector $${{D} ^*} ^0$$ D ∗ 0 and $${{B} ^{*0}_{({s})}} $$ B ( s ) ∗ 0 mesons to the $${\mu ^+\mu ^-} $$ μ + μ - final state provide novel potential to test the Standard Model of particle physics. Such processes have extremely small branching fractions as the vector mesons are able to decay through electromagnetic and (for the $${{D} ^*} ^0$$ D ∗ 0 meson) strong interactions. Nonetheless, the production of copious quantities of these particles in LHC collisions, and the ability to exploit experimental techniques that can suppress background to low levels, provides good potential to reach interesting sensitivity. The possibility to reconstruct these processes as part of the decay chain of $${{{B} ^-}} $$ B - or $${{B} _{c} ^+} $$ B c + mesons appears particularly attractive due to the clean experimental signature of the displaced vertex. Indeed, published LHCb data on $${{{B} ^-}} \rightarrow {{\pi } ^-} {\mu ^+\mu ^-} $$ B - → π - μ + μ - decays already implies a stringent limit on the branching fraction of $${{D} ^{*0}} \rightarrow {\mu ^+\mu ^-} $$ D ∗ 0 → μ + μ - . Estimates are made on the achievable sensitivity to $${{D} ^{*0}} \rightarrow {\mu ^+\mu ^-} $$ D ∗ 0 → μ + μ - and $${{B} ^{*0}_{({s})}} \rightarrow {\mu ^+\mu ^-} $$ B ( s ) ∗ 0 → μ + μ - decays with the LHCb experiment.https://doi.org/10.1140/epjc/s10052-022-10369-y |
| spellingShingle | F. Abudinén T. Blake U. Egede T. Gershon Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays European Physical Journal C: Particles and Fields |
| title | Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays |
| title_full | Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays |
| title_fullStr | Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays |
| title_full_unstemmed | Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays |
| title_short | Prospects for studies of $${D^{*0}} \rightarrow {\mu ^+}{\mu ^-}$$ D ∗ 0 → μ + μ - and $${B^{{*0}}_{(s)}}\rightarrow {\mu ^+}{\mu ^-}$$ B ( s ) ∗ 0 → μ + μ - decays |
| title_sort | prospects for studies of d 0 rightarrow mu mu d ∗ 0 μ μ and b 0 s rightarrow mu mu b s ∗ 0 μ μ decays |
| url | https://doi.org/10.1140/epjc/s10052-022-10369-y |
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