scholarly journals Probing the color structure of the perfect QCD fluids via soft-hard-event-by-event azimuthal correlations

2018 ◽  
Vol 42 (10) ◽  
pp. 104104 ◽  
Author(s):  
Shuzhe Shi ◽  
Jinfeng Liao ◽  
Miklos Gyulassy
2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
S. Acharya ◽  
◽  
D. Adamová ◽  
A. Adler ◽  
J. Adolfsson ◽  
...  

Abstract Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ s NN = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (η) and transverse momentum (pT) ranges |η| < 0.8 and 0.2 < pT< 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators γ1, 1 = 〈cos(φα + φβ − 2Ψ2)〉 and γ1, − 3 = 〈cos(φα − 3φβ + 2Ψ2)〉. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured γ1,1. Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form γ1, 2 = 〈cos(φα + 2φβ − 3Ψ3)〉, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of γ1,1.


Universe ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 155
Author(s):  
Xiaoyun Chen

In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers JPC=0++,1+−,2++ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method. In this calculation, two structures, meson-meson and diquark–antidiquark, as well as their mixing with all possible color-spin configurations, are considered. The results show that no bound states can be formed. However, resonances are possible because of the color structure. The genuine resonances are identified by the stabilization method (real scaling method). Several resonances for the full-charm system are proposed, and some of them are reasonable candidates for the full-charm states recently reported by LHCb.


2021 ◽  
Vol 4 (10(74)) ◽  
pp. 4-7
Author(s):  
M. Harutyunyan

Thus, our scientific research led to the conclusion that the applied art which originated in the previous centuries continued to develop along with other branches of the culture of Artsakh in the second half of the XIX century and the beginning of the XX century.  In this scientific article, we have presented mainly the following branches of the applied arts of Artsakh: carpet weaving, handicrafts, embroidery, silversmithing, pottery. We have mainly presented interesting information about the branches of the applied art which were covered in the periodicals of the second half of the XIX century and the beginning of the XX century. Noting about the carpet weaving of Artsakh, we emphasized that the carpets of that region of Artsakh stood out with their color structure, richness of ornaments, technical mastery. We highlighted the role of handicrafts in the life of Armenian women, emphasizing that this form of the applied art was developed in Artsakh in the Middle Ages. In this article, we also presented a number of pottery samples found during excavations by foreign archaeologists. 


2021 ◽  
Vol 2 (01) ◽  
pp. 41-51
Author(s):  
Jwan Saeed ◽  
Subhi Zeebaree

Skin cancer is among the primary cancer types that manifest due to various dermatological disorders, which may be further classified into several types based on morphological features, color, structure, and texture. The mortality rate of patients who have skin cancer is contingent on preliminary and rapid detection and diagnosis of malignant skin cancer cells. Limitations in current dermoscopic images, including shadow, artifact, and noise, affect image quality, which may hamper detection effort. Attempts to overcome these challenges have been made by analyzing the images using deep learning neural networks to perform skin cancer detection. In this paper, the authors review the state-of-the-art in authoritative deep learning concepts pertinent to skin cancer detection and classification.


2012 ◽  
Vol 174-177 ◽  
pp. 3074-3077
Author(s):  
Shao Hong Li

The paper presented the research on for German Navy's second battalion headquarters building site from the perspectives of building site, building plane, building facades and building structure. building site conformed to terrain, Shapes of building facades were flexible and varied, the overall architectural construction was brick-stone-wood composite structure.The building style was the typical of German Romanticism, both in layout or in the facade shape, color, structure, etc.; it had shown the lively romantic chic, eclectic architectural style.


1995 ◽  
Vol 4 (11) ◽  
pp. 1289-1295 ◽  
Author(s):  
T.J. Kistenmacher ◽  
S.A. Ecelberger ◽  
B.R. Stoner

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