Interactions Between Wheat and a Corrugated Steel Surface

Zhang, Q.; Britton, M. G.; Kieper, R. J.

doi:10.13031/2013.28164

Cited by 18 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[21] the Y (10890) was interpreted as a bound tetraquark state [bq][bq] = QQ with the spin and angular momentum quantum numbers: S Q = 0, SQ = 0, S QQ = 0, L QQ = 1. This same configuration was used in a QCDSR calculation [22] and the obtained mass was 10.88 ± 0.13 GeV, in a very good agreement with the Y (10890) mass. In this section we want to check if the tetraquark current constructed with scalar and vector diquarks:…”

Section: Tetraquark Current For Thesupporting

confidence: 56%

“…Within the available experimental information, none of these suggestions can be completely ruled out. For the Y b (10890) it has been interpreted as a tetraquark state, in a P -wave scalardiquark scalar-antidiquark configuration [21,22]. An alternative scenario is that the anomalously large Υ(nS)π + π − , n = 1, 2, 3 production observed by the Belle Collaboration does not come from a new resonance but via sub-process Υ(5S) → B ( * ) B ( * ) → Υ(1S, 2S)π + π − [23,24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Exotic1--states in QCD sum rules

2011

View full text Add to dashboard Cite

Using the QCD sum rules we test if the charmonium-like structure Y (4260), observed in the J/ψππ invariant mass spectrum, can be described as a exotic state, with a J/ψ f0(980) molecular current with J P C = 1 −− . By exotic we mean a more complex structure than the simple quark-antiquark state and not exotic J P C quantum numbers. We consider the contributions of condensates up to dimension six and we work at leading order in αs. We keep terms which are linear in the strange quark mass ms. The mass obtained for such state is mY = (4.67 ± 0.09) GeV, when the vector and scalar mesons are in color singlet configurations. We conclude that the proposed current can better describe the Y (4660) state that could be interpreted as a Ψ(2S) f0(980) molecular state. We also use different J P C = 1 −− currents to study the recently observed Y b (10890) state. Our findings indicate that the Y b (10890) can be well described by a scalar-vector tetraquark current.

show abstract

Section: Tetraquark Current For Thesupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Exotic1--states in QCD sum rules

2011

View full text Add to dashboard Cite

show abstract

“…J=c with the J=c decaying into lepton pairs and ! K þ K À , to search for high mass states with J PC ¼ 0 þþ or 2 þþ , such as the tetraquark states and molecular states that are predicted by various models [2][3][4]. We find an unexpected structure in J=c mass near 4350 MeV=c 2 .…”

mentioning

confidence: 88%

Evidence for a New Resonance and Search for theY(4140)in theγγ→ϕJ/ψProcess

Shen¹,

Yuan²,

Aihara³

et al. 2010

Phys. Rev. Lett.

129

View full text Add to dashboard Cite

The process gammagamma-->phiJ/psi is measured using a data sample of 825 fb{-1} collected with the Belle detector. A narrow peak of 8.8{-3.2}{+4.2} events, with a significance of 3.2 standard deviations including systematic uncertainty, is observed. The mass and natural width of the structure [named X(4350)] are measured to be [4350.6{-5.1}{+4.6}(stat)+/-0.7(syst)] MeV/c{2} and [13{-9}{+18}(stat)+/-4(syst)] MeV, respectively. The product of its two-photon decay width and branching fraction to phiJ/psi is [6.7{-2.4}{+3.2}(stat)+/-1.1(syst)] eV for J{P}=0{+}, or [1.5{-0.6}{+0.7}(stat)+/-0.3(syst)] eV for J{P}=2{+}. No signal for the Y(4140)-->phiJ/psi structure reported by the CDF Collaboration in B-->K{+}phiJ/psi decays is observed, and limits of Gamma_{gammagamma}(Y(4140))B(Y(4140)-->phiJ/psi)<41 eV for J{P}=0;{+} or <6.0 eV for J{P}=2{+} are determined at the 90% C.L. This disfavors the scenario in which the Y(4140) is a D{s}{*+}D{s}{*-} molecule.

show abstract

“…2). The direct shear tester was a modified version of that was designed and described by Zhang et al (1994). The unit is consistent with the standard shear apparatus originally developed by Jenike for determination of flow properties, and described in more detail in Mohsenin (1986).…”

Section: Direct Shear Testmentioning

confidence: 99%