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Observation of well-defined quasi-particle over a wide energy range in quasi-2D system
L. -L. Jia, Z. -H. Liu, Y. -P. Cai +12
We report the observation by angle-resolved photoemission spectroscopy measurements of a highly anisotropic Dirac-cone structure in high quality SrMnBi2 crystals. We reveal a well-…
Possible nodal superconducting gap emerging at the Lifshitz transition in heavily hole-doped Ba0.1K0.9Fe2As2
N. Xu, P. Richard, X. Shi +11
We performed a high energy resolution ARPES investigation of over-doped Ba0.1K0.9Fe2As2 with T_c= 9 K. The Fermi surface topology of this material is similar to that of KFe2As2 and…
Measurement of and
BESIII Collaboration, M. Ablikim, M. N. Achasov +361
Based on a sample of 225.3 million J/ψevents accumulated with the BESIII detector at the BEPCII, the decays of η' to pi+pi-l+l- are studied via J/ψto γη'. A clear η' signal is obse…
Study of at BESIII
The BESIII Collaboration, M. Ablikim, M. N. Achasov +363
The decay has been studied, using events accumulated at BESIII. No significant enhancement near the invariant-mass…
Partial wave analysis of
M. Ablikim, M. N. Achasov, O. Albayrak +358
Based on a sample of events collected with the BESIII detector at BEPCII, a full partial wave analysis on was performed using the relativistic…