1,473 research outputs found
Use randam amplified polymorphic DNAs Maskers to distinguish temperature isolates of Aspergillus fumigatus of Taiwan.
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Search for Zc(3900) ± → ωπ ±
No full textÇetin, Serkant Ali (Dogus Author)The decay Zc(3900)±→ωπ± is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is found, and upper limits at the 90% confidence level on the Born cross section for the process e+e-→Zc(3900)±π →ωπ+π- are determined to be 0.26 and 0.18 pb at s=4.23 and 4.26 GeV, respectively
Production of Zc(3900 ) and Zc(4020) in Bc decay
No full textAbstract In the present work, we propose to search the charmonium-like states Zc(3900 ) and Zc(4020) in the Bc decay. In an effective Lagrangian approach, the branching ratios of Bc+→Zc(3900)+π0 and Bc+→Zc(4020)+π0 are estimated to be of order of 10-4 and 10-7 , respectively. The large production rate of Zc(3900) could provide an important source of the production of Zc(3900) from the semi-exclusive decay of b-flavored hadrons reported by D0 Collaboration, which can be tested by the exclusive measurements in LHCb
Search for Zc (3900)± →ωπ± SEARCH for Zc (3900)± →ωπ± M. ABLIKIM et al
No full textThe decay Zc(3900)-->omega pi+- is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies sqrt(s)=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is found, and upper limits at the 90% confidence level on the Born cross section for the process e+e- -->Zc(3900)±pi-+ -->omega pi+pi- are determined to be 0.26 and 0.18 pb at sqrt(s)=4.23 and 4.26 GeV, respectively
Tuning the structure of cerium-based metal-organic frameworks for efficient removal of arsenic species: The role of organic ligands
No full textThe ability of organic ligands to change the structure of metal-organic frameworks (MOFs) in nature and influence their adsorption efficiency for arsenic species is enormous. The current work was designed to investigate the adsorption performance of cerium-based MOFs with tunable structures through the use of organic ligands (Ce-MOF-66 and Ce-MOF-808) towards arsenic species from water. The structural features of Ce-MOF-66 and CeMOF-808 with varying crystallinity, morphology, particle size, and surface area are considerably altered by organic ligands tuning, resulting in clearly distinct arsenate (As (V)) and arsenite (As (III)) adsorption capabilities. The experimental results showed that the Langmuir adsorption capacities of As (V) by Ce-MOF-66 and CeMOF-808 reached 355.67 and 217.80 mg/g, respectively, while for As (III) were 5.52 and 402.10 mg/g for CeMOF-66 and Ce-MOF-808, respectively. Except for the impact of PO43- on As (V), co-existing ions had no significant influence on adsorption, illustrating the high selectivity. Furthermore, to understand the structure and adsorption mechanism, two adsorbents were characterized by powder X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, specific surface area, Fourier transform infrared and X-ray photoelectron spectroscopy, in which identified that unsaturated sites and ligand exchange were the main adsorption mechanisms of As (V) and As (III). Overall, this research presents a novel approach for developing high-performance Ce-derived MOFs adsorbents to capture arsenic species
Fungi genus and concentration in the air of onion fields and their opportunistic action related to mycotic keratitis
No full textObservation of Zc (3900)0 in e+e- →π0π0J/ψ
Full text linkÇetin, Serkant Ali (Dogus Author)Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, we observe a new neutral state Zc(3900)0 with a significance of 10.4σ. The mass and width are measured to be 3894.8±2.3±3.2MeV/c2 and 29.6±8.2±8.2MeV, respectively, where the first error is statistical and the second systematic. The Born cross section for e+e-→π0π0J/ψ and the fraction of it attributable to π0Zc(3900)0→π0π0J/ψ in the range Ec.m.=4.19-4.42GeV are also determined. We interpret this state as the neutral partner of the four-quark candidate Zc(3900)±
Zc(3900)/Zc(3885) as a virtual state from πJ/ψ-D¯∗D interaction
No full textAbstract In this work, we study the πJ/ψ and D¯∗D invariant mass spectra of the Y(4260) decay to find out the origin of the Zc(3900) and Zc(3885) structures. The πJ/ψ-D¯∗D interaction is studied in a coupled-channel quasipotential Bethe–Saltpeter equation approach, and embedded to the Y(4260) decay process to reproduce both π-J/ψ and D∗-D0 invariant mass spectra observed at BESIII simultaneously. It is found out that a virtual state at energy about 3870 MeV is produced from the interaction when both invariant mass spectra are comparable with the experiment. The results support that both Zc(3900) and Zc(3885) have the same origin, that is, a virtual state from πJ/ψ-D¯∗D interaction, in which the D¯∗D interaction is more important and the coupling between D¯∗D and πJ/ψ channels plays a minor role
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