Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle
We review the recent results from the Belle experiment on the measurements of branching fractions and decay asymmetry parameters (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics>...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/15/1/91 |
| _version_ | 1797436814095548416 |
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| author | Shi-Shuai Tang Long-Ke Li Xing-Yu Zhou Cheng-Ping Shen |
| author_facet | Shi-Shuai Tang Long-Ke Li Xing-Yu Zhou Cheng-Ping Shen |
| author_sort | Shi-Shuai Tang |
| collection | DOAJ |
| description | We review the recent results from the Belle experiment on the measurements of branching fractions and decay asymmetry parameters (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>) for the hadronic weak decays of charmed baryons, including <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>P</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mrow><mo>(</mo><mi>Λ</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mo>)</mo></mrow><mspace width="0.166667em"></mspace><msup><mi>h</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula> (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mspace width="-0.166667em"></mspace><mo>=</mo><mspace width="-0.166667em"></mspace><mi>π</mi><mo>,</mo><mspace width="0.166667em"></mspace><mi>K</mi></mrow></semantics></math></inline-formula>) and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mo>+</mo></msup><mrow><mo>(</mo><msup><mi>π</mi><mn>0</mn></msup><mo>,</mo><mspace width="0.166667em"></mspace><mi>η</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>η</mi><mo>′</mo></msup><mo>)</mo></mrow></mrow></semantics></math></inline-formula>; <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>P</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Ξ</mi><mo>−</mo></msup><msup><mi>π</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>; <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>V</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi>Λ</mi><mspace width="1.99997pt"></mspace><mover><mrow><mspace width="-1.99997pt"></mspace><mi>K</mi></mrow><mo>¯</mo></mover><mrow></mrow><msup><mrow></mrow><mrow><mo>*</mo><mn>0</mn></mrow></msup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mspace width="1.99997pt"></mspace><mover><mrow><mspace width="-1.99997pt"></mspace><mi>K</mi></mrow><mo>¯</mo></mover><mrow></mrow><msup><mrow></mrow><mrow><mo>*</mo><mn>0</mn></mrow></msup></mrow></semantics></math></inline-formula>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mo>+</mo></msup><msup><mi>K</mi><mrow><mo>*</mo><mo>−</mo></mrow></msup></mrow></semantics></math></inline-formula>. In addition, we present an overview of the searches for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> violation via the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> asymmetry for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mrow><mo>(</mo><mi>Λ</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mo>)</mo></mrow><msup><mi>h</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Ξ</mi><mo>−</mo></msup><msup><mi>π</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>. Finally, we discuss the promising decay modes of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mi>Ω</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup></semantics></math></inline-formula> which can be measured in the near future and are indispensable in searching for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> violation in the charm sector. |
| first_indexed | 2024-03-09T11:08:02Z |
| format | Article |
| id | doaj.art-5945edf4e4984a32bff92cea92de2c34 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T11:08:02Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-5945edf4e4984a32bff92cea92de2c342023-12-01T00:51:42ZengMDPI AGSymmetry2073-89942022-12-011519110.3390/sym15010091Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at BelleShi-Shuai Tang0Long-Ke Li1Xing-Yu Zhou2Cheng-Ping Shen3Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200443, ChinaDepartment of Physics, University of Cincinnati, Cincinnati, OH 45221, USASchool of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, ChinaKey Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200443, ChinaWe review the recent results from the Belle experiment on the measurements of branching fractions and decay asymmetry parameters (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>) for the hadronic weak decays of charmed baryons, including <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>P</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mrow><mo>(</mo><mi>Λ</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mo>)</mo></mrow><mspace width="0.166667em"></mspace><msup><mi>h</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula> (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>h</mi><mspace width="-0.166667em"></mspace><mo>=</mo><mspace width="-0.166667em"></mspace><mi>π</mi><mo>,</mo><mspace width="0.166667em"></mspace><mi>K</mi></mrow></semantics></math></inline-formula>) and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mo>+</mo></msup><mrow><mo>(</mo><msup><mi>π</mi><mn>0</mn></msup><mo>,</mo><mspace width="0.166667em"></mspace><mi>η</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>η</mi><mo>′</mo></msup><mo>)</mo></mrow></mrow></semantics></math></inline-formula>; <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>P</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Ξ</mi><mo>−</mo></msup><msup><mi>π</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>; <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi mathvariant="bold">B</mi><mo>+</mo><mi>V</mi></mrow></semantics></math></inline-formula>: <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mi>Λ</mi><mspace width="1.99997pt"></mspace><mover><mrow><mspace width="-1.99997pt"></mspace><mi>K</mi></mrow><mo>¯</mo></mover><mrow></mrow><msup><mrow></mrow><mrow><mo>*</mo><mn>0</mn></mrow></msup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mspace width="1.99997pt"></mspace><mover><mrow><mspace width="-1.99997pt"></mspace><mi>K</mi></mrow><mo>¯</mo></mover><mrow></mrow><msup><mrow></mrow><mrow><mo>*</mo><mn>0</mn></mrow></msup></mrow></semantics></math></inline-formula>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Σ</mi><mo>+</mo></msup><msup><mi>K</mi><mrow><mo>*</mo><mo>−</mo></mrow></msup></mrow></semantics></math></inline-formula>. In addition, we present an overview of the searches for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> violation via the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> asymmetry for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Λ</mi><mrow><mi>c</mi></mrow><mo>+</mo></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><mrow><mo>(</mo><mi>Λ</mi><mo>,</mo><mspace width="0.166667em"></mspace><msup><mi>Σ</mi><mn>0</mn></msup><mo>)</mo></mrow><msup><mi>h</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>Ξ</mi><mi>c</mi><mn>0</mn></msubsup><mspace width="-0.166667em"></mspace><mo>→</mo><mspace width="-0.166667em"></mspace><msup><mi>Ξ</mi><mo>−</mo></msup><msup><mi>π</mi><mo>+</mo></msup></mrow></semantics></math></inline-formula>. Finally, we discuss the promising decay modes of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mi>Ω</mi><mrow><mi>c</mi></mrow><mn>0</mn></msubsup></semantics></math></inline-formula> which can be measured in the near future and are indispensable in searching for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mspace width="-0.166667em"></mspace><mi>P</mi></mrow></semantics></math></inline-formula> violation in the charm sector.https://www.mdpi.com/2073-8994/15/1/91charmed baryonweak decayasymmetry parameter<i>CP</i> violationBelle experiment |
| spellingShingle | Shi-Shuai Tang Long-Ke Li Xing-Yu Zhou Cheng-Ping Shen Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle Symmetry charmed baryon weak decay asymmetry parameter <i>CP</i> violation Belle experiment |
| title | Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle |
| title_full | Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle |
| title_fullStr | Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle |
| title_full_unstemmed | Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle |
| title_short | Recent Measurements of Decay Asymmetry Parameter and <i>CP</i> Asymmetry for Charmed Baryon Decays at Belle |
| title_sort | recent measurements of decay asymmetry parameter and i cp i asymmetry for charmed baryon decays at belle |
| topic | charmed baryon weak decay asymmetry parameter <i>CP</i> violation Belle experiment |
| url | https://www.mdpi.com/2073-8994/15/1/91 |
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