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| 001 | 892608 | ||
| 005 | 20210623133351.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevLett.126.192001 |2 doi |
| 024 | 7 | _ | |a 0031-9007 |2 ISSN |
| 024 | 7 | _ | |a 1079-7114 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2021-02197 |
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| 100 | 1 | _ | |a Du, Meng-Lin |0 0000-0002-7504-3107 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Where Is the Lightest Charmed Scalar Meson? |
| 260 | _ | _ | |a College Park, Md. |c 2021 |b APS |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a The lightest charmed scalar meson is known as the D∗0(2300), which is one of the earliest new hadron resonances observed at modern B factories. We show here that the parameters assigned to the lightest scalar D meson are in conflict with the precise LHCb data of the decay B−→D+π−π−. On the contrary, these data can be well described by an unitarized chiral amplitude containing a much lighter charmed scalar meson, the D∗0(2100). We also extract the low-energy S-wave Dπ phase of the decay B−→D+π−π− from the data in a model-independent way, and show that its difference from the Dπ scattering phase shift can be traced back to an intermediate ρ− exchange. Our work highlights that an analysis of data consistent with chiral symmetry, unitarity, and analyticity is mandatory in order to extract the properties of the ground-state scalar mesons in the singly heavy sector correctly, in analogy to the light scalar mesons f0(500) and K∗0(700) |
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| 700 | 1 | _ | |a Guo, Feng-Kun |0 0000-0002-2919-2064 |b 1 |
| 700 | 1 | _ | |a Hanhart, Christoph |0 P:(DE-Juel1)131182 |b 2 |u fzj |
| 700 | 1 | _ | |a Kubis, Bastian |0 0000-0002-1541-6581 |b 3 |
| 700 | 1 | _ | |a Meißner, Ulf-G. |0 P:(DE-Juel1)131252 |b 4 |
| 773 | _ | _ | |a 10.1103/PhysRevLett.126.192001 |g Vol. 126, no. 19, p. 192001 |0 PERI:(DE-600)1472655-5 |n 19 |p 192001 |t Physical review letters |v 126 |y 2021 |x 1079-7114 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/892608/files/PhysRevLett.126.192001.pdf |y OpenAccess |
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