Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e
By analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events cor...
| मुख्य लेखकों: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
Springer
2024
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| _version_ | 1826314655907184640 |
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| author | Ablikim, M Achasov, MN Adlarson, P Ai, XC Aliberti, R Amoroso, A An, MR An, Q Bai, Y Bakina, O Balossino, I Ban, Y Batozskaya, V Begzsuren, K Berger, N Berlowski, M Bertani, M Bettoni, D Bianchi, F Bianco, E Bortone, A Boyko, I Briere, RA Brueggemann, A Fischer, K Gilman, A Malde, S Tat, M Wilkinson, G Zhang, Y |
| author_facet | Ablikim, M Achasov, MN Adlarson, P Ai, XC Aliberti, R Amoroso, A An, MR An, Q Bai, Y Bakina, O Balossino, I Ban, Y Batozskaya, V Begzsuren, K Berger, N Berlowski, M Bertani, M Bettoni, D Bianchi, F Bianco, E Bortone, A Boyko, I Briere, RA Brueggemann, A Fischer, K Gilman, A Malde, S Tat, M Wilkinson, G Zhang, Y |
| author_sort | Ablikim, M |
| collection | OXFORD |
| description | By analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events correspond to K1(1270) decays, the branching fractions are measured to be BD0→K11270−→KS0π−π0e+νe=1.69−0.46+0.53±0.15×10−4 and BD+→K¯112700→KS0π+π−e+νe=1.47−0.40+0.45±0.14×10−4 with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K1(1270) → K+π−π decays, the absolute branching fractions are determined to be BD0→K11270−e+νe=1.08−0.13−0.10+0.14+0.08±0.21×10−3 and BD+→K¯112700e+νe=1.70−0.23+0.26±0.13±0.35×10−3. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K1(1270) → Kππ decays. |
| first_indexed | 2024-09-25T04:36:30Z |
| format | Journal article |
| id | oxford-uuid:e8b4ccf8-0dc4-45c3-93fa-60bd0eddfa9c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:36:30Z |
| publishDate | 2024 |
| publisher | Springer |
| record_format | dspace |
| spelling | oxford-uuid:e8b4ccf8-0dc4-45c3-93fa-60bd0eddfa9c2024-09-23T20:08:24ZObservation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν eJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e8b4ccf8-0dc4-45c3-93fa-60bd0eddfa9cEnglishJisc Publications RouterSpringer2024Ablikim, MAchasov, MNAdlarson, PAi, XCAliberti, RAmoroso, AAn, MRAn, QBai, YBakina, OBalossino, IBan, YBatozskaya, VBegzsuren, KBerger, NBerlowski, MBertani, MBettoni, DBianchi, FBianco, EBortone, ABoyko, IBriere, RABrueggemann, AFischer, KGilman, AMalde, STat, MWilkinson, GZhang, YBy analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events correspond to K1(1270) decays, the branching fractions are measured to be BD0→K11270−→KS0π−π0e+νe=1.69−0.46+0.53±0.15×10−4 and BD+→K¯112700→KS0π+π−e+νe=1.47−0.40+0.45±0.14×10−4 with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K1(1270) → K+π−π decays, the absolute branching fractions are determined to be BD0→K11270−e+νe=1.08−0.13−0.10+0.14+0.08±0.21×10−3 and BD+→K¯112700e+νe=1.70−0.23+0.26±0.13±0.35×10−3. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K1(1270) → Kππ decays. |
| spellingShingle | Ablikim, M Achasov, MN Adlarson, P Ai, XC Aliberti, R Amoroso, A An, MR An, Q Bai, Y Bakina, O Balossino, I Ban, Y Batozskaya, V Begzsuren, K Berger, N Berlowski, M Bertani, M Bettoni, D Bianchi, F Bianco, E Bortone, A Boyko, I Briere, RA Brueggemann, A Fischer, K Gilman, A Malde, S Tat, M Wilkinson, G Zhang, Y Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title | Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title_full | Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title_fullStr | Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title_full_unstemmed | Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title_short | Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e and D + → K S 0 π + π − e + ν e |
| title_sort | observation of the semileptonic decays d 0 k s 0 π π 0 e ν e and d k s 0 π π e ν e |
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