Tetraquark state candidates: Y(4260), Y(4360), Y(4660), and $$Z_c(4020/4025)$$ Z c ( 4020 / 4025 )

Wang, Zhigang

doi:10.1140/epjc/s10052-016-4238-y

Cited by 155 publications

(155 citation statements)

References 54 publications

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“…It has been observed from many recent studies that the reaction between HFA and OH generally proceeds through the formation of pre-and post-reaction complexes [15][16][17]. We could also locate such complexes from IRC analysis for each reaction channel of (CF 3 ) 2 C(OH)CH 3 + OH reaction.…”

Section: Structure and Energeticsmentioning

confidence: 93%

Theoretical studies on atmospheric chemistry of (CF3)2C(OH)CH3: Kinetics, mechanism and thermochemistry of gas phase reactions with OH radicals

Lily

Chandra

2015

Journal of Fluorine Chemistry

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Section: Structure and Energeticsmentioning

confidence: 93%

Theoretical studies on atmospheric chemistry of (CF3)2C(OH)CH3: Kinetics, mechanism and thermochemistry of gas phase reactions with OH radicals

Lily

Chandra

2015

Journal of Fluorine Chemistry

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“…The previous formalism has been applied to study the properties of the X(3872) [231], of the Z [235,236] and of the Y states [237]. The literature on the topic is impressively vast.…”

Section: Qcd Sum Rulesmentioning

confidence: 99%

“…The Z b is instead studied in [235] Lastly, the application of QCD sum rules to the Y states has been throughly done in [237]. The authors find support for the diquarkonium nature of the Y(4660) and for the mixed charmonium-diquarkonium for the Y(4260) and Y(4360).…”

Section: Qcd Sum Rulesmentioning

confidence: 99%

Multiquark resonances

2017

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Multiquark resonances are undoubtedly experimentally observed. The number of states and the amount of details on their properties have been growing over the years. It is very recent the discovery of two pentaquarks and the confirmation of four tetraquarks, two of which had not been observed before. We mainly review the theoretical understanding of this sector of particle physics phenomenology and present some considerations attempting a coherent description of the so called X and Z resonances. The prominent problems plaguing theoretical models, like the absence of selection rules limiting the number of states predicted, motivate new directions in model building. Data are reviewed going through all of the observed resonances with particular attention to their common features and the purpose of providing a starting point to further research.

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“…In other words, they are inspired by biological evolution and have proved to be robust and powerful adaptive search techniques [18]. Indeed, GAs have been successfully applied to optimization problems in many domains.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Path Planning Algorithm for a Mobile Robot Based on Visible Space and an Improved Genetic Algorithm

Zhang

Zhao

Deng

et al. 2016

International Journal of Advanced Robotic Systems

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In this study, a series of new concepts and improved genetic operators of a genetic algorithm (GA) was proposed and applied to solve mobile robot (MR) path planning problems in dynamic environments. The proposed method has two superiorities: fast convergence towards the global optimum and the feasibility of all solutions in the population. Path planning aims to provide an optimal path from a starting location to a target location, preventing collision or so-called obstacle avoidance. Although GAs have been widely used in optimization problems and can obtain good results, conventional GAs have some weaknesses in an obstacle environment, such as infeasible paths. The main ideas in this paper are visible space, matrix coding and new mutation operators. In order to demonstrate the superiority of this method, three different obstacle environments have been used and an experiment is conducted. This algorithm is effective in both static and dynamic environments.

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Tetraquark state candidates: Y(4260), Y(4360), Y(4660), and $$Z_c(4020/4025)$$ Z c ( 4020 / 4025 )

Cited by 155 publications

References 54 publications

Theoretical studies on atmospheric chemistry of (CF3)2C(OH)CH3: Kinetics, mechanism and thermochemistry of gas phase reactions with OH radicals

Theoretical studies on atmospheric chemistry of (CF3)2C(OH)CH3: Kinetics, mechanism and thermochemistry of gas phase reactions with OH radicals

Multiquark resonances

Dynamic Path Planning Algorithm for a Mobile Robot Based on Visible Space and an Improved Genetic Algorithm

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