609 research outputs found
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
Observation 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)±
Confirmation of a charged charmoniumlike state Zc (3885)∓ in e+e- →π± (D D ¯ ∗)∓ with double D tag
No full textÇetin, Serkant Ali (Dogus Author)We present a study of the process e+e-→π±(DD¯∗)∓ using data samples of 1092 pb-1 at s=4.23 GeV and 826 pb-1 at s=4.26 GeV collected with the BESIII detector at the BEPCII storage ring. With full reconstruction of the D meson pair and the bachelor π± in the final state, we confirm the existence of the charged structure Zc(3885)∓ in the (DD¯∗)∓ system in the two isospin processes e+e-→π+D0D∗- and e+e-→π+D-D∗0. By performing a simultaneous fit, the statistical significance of Zc(3885)∓ signal is determined to be greater than 10σ, and its pole mass and width are measured to be Mpole=(3881.7±1.6(stat)±1.6(syst)) MeV/c2 and Γpole=(26.6±2.0(stat)±2.1(syst)) MeV, respectively. The Born cross section times the (DD¯∗)∓ branching fraction (σ(e+e-→π±Zc(3885)∓)×Br(Zc(3885)∓→(DD¯∗)∓)) is measured to be (141.6±7.9(stat)±12.3(syst)) pb at s=4.23 GeV and (108.4±6.9(stat)±8.8(syst)) pb at s=4.26 GeV. The polar angular distribution of the π±-Zc(3885)∓ system is consistent with the expectation of a quantum number assignment of JP=1+ for Zc(3885)∓
Observation of a neutral charmoniumlike state Zc (4025)0 in e+e- → (D∗ D ¯ ∗)0π0
No full textÇetin, Serkant Ali (Dogus Author)We report a study of the process e+e-→(D∗D¯∗)0π0 using e+e- collision data samples with integrated luminosities of 1092 pb-1 at s=4.23 GeV and 826 pb-1 at s=4.26 GeV collected with the BESIII detector at the BEPCII storage ring. We observe a new neutral structure near the (D∗D¯∗)0 mass threshold in the π0 recoil mass spectrum, which we denote as Zc(4025)0. Assuming a Breit-Wigner line shape, its pole mass and pole width are determined to be (4025.5-4.7+2.0±3.1) MeV/c2 and (23.0±6.0±1.0) MeV, respectively. The Born cross sections of e+e-→Zc(4025)0π0→(D∗D¯∗)0π0 are measured to be (61.6±8.2±9.0) pb at s=4.23 GeV and (43.4±8.0±5.4) pb at s=4.26 GeV. The first uncertainties are statistical and the second are systematic
Collaborative Target Tracking for Laparoscopic Surgery Simulation utilizing Anticipatory Sanets
No full textLaparoscopic Surgical Simulation tools are an essential training resource for surgeons specializing in laparoscopic surgical procedures. This paper presents a Sensor-Actor Network (Sanet) training environment to simulate laparoscopic medical procedures, with the intention of using anticipatory models for target tracking and navigation. This case study implements the Belief-Desire-Intention (BDI) agent-based software reasoning approach, with neural network processes to demonstrate path trajectory planning effectively aids in the handling of laparoscopic equipment in different predefined scenarios. The immersion of the trainer in the simulation environment provides a qualitative and quantitative method of measuring the trainee's efficiency for post-analysis and feedback in laparoscopic procedures
Intelligent Agents for Educational Environments
No full textThis paper outlines a concept of employing intelligent agents to simulate, construct and deploy a Smart Library System for an educational facility. Discussion into the many technical challenges driving the concept, ideas behind this approach and the final design rationale are examined. The design model of the Smart Library System that uses Multi-agent simulation and distributed middleware frameworks can be successfully applied to many similar application areas as a means of automating a wide variety of asset monitoring and control tasks in both traditional and distributed systems concerns. Educational environments containing material such as books, multimedia and laboratory equipment can benefit from the proposed software solution allowing such assets to be efficiently managed and monitored. This subsequently would improve the quality of teaching and training support
Intelligent Tele-Homecare: The Application of Soft-Computing Models in Sensor Agent Network Systems
Full text linkThis paper conceptualises the development of an Intelligent Home Care system to assist health care professionals and carers in providing an enhanced level of support to senior citizens. The social demographics in the developed world indicate a decline in population growth, indicating a need for greater resources to be dedicated towards enhancing the lives of an aging society. Furthermore, the dissociation of extended family structures in modern society results in senior citizens to take greater independence in managing their own lives. With the technological advances in the Tele-Homecare domain, there is an impetus to develop improved computational techniques that reflect the nature of complex systems in medicine and biology
Steering a Swarm of Autonomous Sailing Vehicles implementing Biomimetic SANET Middleware
No full textThis paper describes the incorporation of object tracking heuristics with a dynamic sailing model for surface sailing vessels, using the maneuvering approach by Jouffroy (2009). A simplified dynamic model is simulated, with a path generation scheme and controller for a fundamental maneuver in sailing known as tacking. In addition, this maneuver is incorporated with obstacle algorithms for detection and avoidance. The incorporation of Sensor-Actor Networks (Sanets) in the sailing vessel makes it possible to incorporate sensors in the structure to monitor localized obstacles in an energy efficient manner, while statistical data is relayed to a centralized base station for post-processing and analysis of global environmental conditions
A Smart-Shop System - Mulit-Agent Simulation System for Monitoring Retail Activities
Full text linkThis paper outlines a concept of employing intelligent agents to simulate and deploy a Smart-Shop System for retail environments. The discussion will examine the technical and conceptual challenges, main ideas and the final design rationale. The design model of the Smart-Shop System uses Multi-Agent Simulation Systems (MASS) and distributed middleware frameworks to automate a wide variety of asset monitoring and control tasks in traditional and distributed system concerns, which can be applied to similar application areas. Retail organisations containing any form of physical inventory can benefit from the proposed software solution by allowing assets to be efficiently managed and monitored. This would improve the quality of business trade and strategic marketing to sustain sales growth
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