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Charm mixing and CPV
/ Ferrari, Fabio (INFN, Bologna ; U. Bologna, DIFA ; Bologna U.)
In these proceedings, recent results on time-dependent and time-integrated measurements of $C\!P$ violation and of meson mixing in the charm sector are presented, including the first observation of $C\!P$ violation in the charm system..
arXiv:1906.10952.
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2019. - 7 p.
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Charm Mixing and CPV at LHCb
/ Davis, A (University of Cincinnati, Cincinnati, OH, United States)
LHCb-TALK-2014-075.-
Geneva : CERN, 2014 - 24 p.
Fulltext: PDF;
In : Phenomenology 2014 Symposium, Univ., Pittsburgh, PA, USA, 5 - 7 May 2014
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Summary of WG7 at CKM 2018: "Mixing and $CP$ violation in the $D$ system: $x_D$, $y_D$, $|q/p|_D$, $\phi_D$, and direct $CP$ violation in $D$ decays"
/ Bhardwaj, Vishal (IISER, Mohali) ; Dorigo, Mirco (CERN ; INFN, Pisa) ; Yu, Fu-Sheng (Lanzhou U.)
The "10$^{\rm th}$ International Workshop on the CKM Unitary Triangle" took place at the University of Heidelberg on September 17$^{\rm th}$-21$^{\rm st}$, 2018. [...]
arXiv:1901.08131.
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2019. - 17 p.
Fulltext
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Evidence against the wobbling nature of low-spin bands in $^{135}$Pr
/ Lv, B.F. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Petrache, C.M. (IJCLab, Orsay) ; Lawrie, E.A. (iThemba LABS ; Western Cape U.) ; Guo, S. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Astier, A. (IJCLab, Orsay) ; Dupont, E. (IJCLab, Orsay) ; Zheng, K.K. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS ; IJCLab, Orsay) ; Ong, H.J. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Wang, J.G. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Zhou, X.H. (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) et al.
The electromagnetic character of the $\Delta I=1$ transitions connecting the one- to zero-phonon and the two- to one-phonon wobbling bands should be dominated by an $E2$ component, due to the collective motion of the entire nuclear charge. In the present work it is shown, based on combined angular correlation and linear polarization measurements, that the mixing ratios of all analyzed connecting transitions between low-lying bands in $^{135}$Pr interpreted as zero-, one-, and two-phonon wobbling bands, have absolute values smaller than one. [...]
arXiv:2106.04879.-
2022-01-10 - 6 p.
- Published in : Phys. Lett. B 824 (2022) 136840
Fulltext: 1-s2.0-S0370269321007802-main - PDF; 2106.04879 - PDF;
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Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
/ Chen, Rui (Lanzhou U. ; Lanzhou, Inst. Modern Phys. ; Peking U. ; Peking U., SKLNPT) ; Sun, Zhi-Feng (Lanzhou U. ; Lanzhou, Inst. Modern Phys.) ; Liu, Xiang (Lanzhou U. ; Lanzhou, Inst. Modern Phys.) ; Zhu, Shi-Lin (Peking U. ; Peking U., SKLNPT ; CICQM, Beijing ; Peking U., CHEP)
On March 26th, 2019, at the Rencontres de Moriond QCD conference, the LHCb Collaboration reported the observation of three new pentaquarks, namely $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$, which are consistent with the loosely bound molecular hidden-charm pentaquark states composed of an S-wave charmed baryon $\Sigma_c$ and an S-wave anti-charmed meson ($\bar{D}, \bar{D}^*$). In this work, we present a direct calculation by the one-boson-exchange (OBE) model and demonstrate explicitly that the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ do correspond to the loosely bound $\Sigma_c\bar{D}$ with $(I=1/2,J^P=1/2^-)$, $\Sigma_c\bar{D}^*$ with $(I=1/2,J^P=1/2^-)$ and $\Sigma_c\bar{D}^*$ with $(I=1/2,J^P=3/2^-)$, respectively..
arXiv:1903.11013.-
2019-07-11 - 6 p.
- Published in : Phys. Rev. D 100 (2019) 011502
Article from SCOAP3: PDF; Fulltext: PDF;
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