11 research outputs found
Dissociation of heavy quarkonia at finite \mu
We studied the properties of the heavy quarkonia in the presence of finite
quark-chemical potential for different number of flavors by using the quasi
particle approach. The effect of the finite quark-chemical potential has been
incorporated through the quasi-particle Debye mass to examine the binding
energies of the quarkonium states. From the imaginary part of the potential we
have calculated the thermal width of the ground state of the quarkonia and
found that the thermal width increases with finite quark-chemical potential.
The dissociation temperature (T_D) of the J/psi and Upsilon have been
calculated in the presence of finite quark-chemical potential for different
flavors (i.e., N_f = 1, 2 and 3). The effect of the finite quark-chemical
potential on the mass spectra of the quarkonium states has been also studied.Comment: 14 pages, 10 figure
Dissociation of J/ and using dissociation energy criteria in N-dimensional space
The analytical exact iteration method (AEIM) have been used widely to
calculate N-dimensional radial Schrodinger equation with medium modified form
of Cornell potential and is generalized to the finite value of magnetic field
(eB) with quasi-particle approach in hot quantum chromodynamics (QCD) medium.
In N-dimensional space the energy eigen values have been calculated for any
states (n,l). These results have been used to study the properties of
quarkonium states (i.e, the binding energy and mass spectra, dissociation
temperature and thermodynamical properties in the N-dimensional space). We have
determined the binding energy of the ground states of quarkonium with magnetic
field and dimensionality number. We have also determined the effects of
magnetic field and dimensionality number on mass spectra for ground states of
quarkonia. But main result is quite noticeable for the values of dissociation
temperature in terms of magnetic field and dimensionality number for ground
states of quarkonia after using the criteria of dissociation energy. At last,
we have also calculated the thermodynamical properties of QGP (i.e., pressure,
energy density and speed of sound) using the parameter eB with ideal equation
of states (EoS).Comment: 14 pages, 11 figure
Study of Differential Scattering Cross-section using Yukawa term of medium-modified Cornell potential
In the present work we have studied the Differential Scattering Cross-section
for ground states of charmonium and bottomonium in the frame work of the medium
modified form of quark-antiquark potential and Born-approximation using the
non-relativistic quantum chromo-dynamics approach. To reach this end,
quasi-particle (QP) Debye mass depending upon baryonic chemical potential
(b) and temperature has been employed and hence the variation of
Differential Scattering Cross-section with baryonic chemical potential and
temperature at fixed value of the scattering angle () has been
studied. The variation of Differential Scattering Cross-section with scattering
angle (in degree) at fixed temperature and baryonic chemical potential
has also been studied. We have also studied the effect of impact parameter and
transverse momentum on differential scattering cross-section at
.Comment: 13 pages, 8 figures (Accepted in advances in High Energy Physics
Journal
Dissociation and thermodynamical properties of heavy quarkonia in an anisotropic strongly coupled hot QGP: using baryonic chemical potential
We extended the recent work Phys. Rev. D 97(9), 094033 (2018) to investigate
quarkonium dissociation in presence of baryonic chemical potential (mu_b) and
anisotropy ({\xi}) using quasi-particle approach in hot quantum chromodynamics
(QCD) medium. We have determined binding energy and thermal width of S-states
of charmonia and bottomonia for n=1 and n=2 (radial quantum number) with
anisotropic parameter ({\xi}) and baryonic chemical potential. We have also
determined the effects of baryonic chemical potential and anisotropy on mass
spectra of 1S-states of quarkonia and the results obtained were consistent with
theoretical and experimental works. But the key result obtained was
dissociation temperature of the S-states with the effect of {mu_b} and {\xi}.
At last, we have calculated the thermodynamical properties of QGP (i.e.,
pressure, energy density and speed of sound) using the parameter {\xi} and
{mu_b}, which is the main key to study suppression of the quarkonium with
latest determined value of energy density psNN after incorporating the effect
of {\xi} and (mu_b).Comment: 23 pages, 15 figure
Study of Quarkonium properties using SUSYQM method with baryonic chemical potential
In this article, we employed the Quasi-particle debye mass at finite baryonic
chemical potential which can be used in the medium modified heavy quark
potential to solve the N-dimensional Schroedinger equation. The bound state
solution of the Schroedinger equation using Cornell potential is obtained by
Super-Symmetry Quantum Mechanics (SUSYQM) method. The thermodynamical
properties of quark matter is calculated by using baryonic chemical potential
(mu). We found that the binding energy of quarkonia dissociates more with
quasi-particle debye mass in comparison to non-perturbative and leading order
debye mass. The medium modified form of potential (real part) has been used to
study the thermodynamical properties of quark matter with different equation of
states (EoS) (i.e., pressure, energy density and speed of sound) with {mu}. The
mass spectra of quarkonia has been also calculated in the N-dimensional space,
and compared with the experimental data at N=3. We have also calculated the
dissociation temperature (T_D) for the ground states of quarkonium using the
dissociation criteria of thermal width.Comment: 20 pages, 9 figure
Melting of Quarkonia in strong magnetic field
In this paper, spectra of the quarkonium states has been studied using the conditions temperature, chemical potential and the magnetic field. Here our main focus is to study the effect of strong magnetic field on the quarkonium properties. The binding energies and the dissociation temperature for the ground and the first excited states of the charmonium and bottomonium in the presence of strong magnetic field at chemical potential μ = 500 MeV has been studied. Here we use quasiparticle(QP) Debye mass depending upon temperature, magnetic field and chemical potential obtained from the quasiparticle approach. The Debye mass strongly increases at different values of temperature and magnetic field. The binding energy decreases with increase in the temperature at different magnetic field eB=0.3, 0.5, and 0.7 GeV2 and also decreases with magnetic field at different at T=200,300 and 400 MeV for the J/ψ, Ψ’, ϒ, and ϒ’ states of the quarkonia. The dissociation temperature of the quarkonium states falls with the increasing values of the magnetic field at critical temperature Tc =197 MeV
Melting of Quarkonia in strong magnetic field
475-481In this paper, spectra of the quarkonium states has been studied using the conditions temperature, chemical potential and
the magnetic field. Here our main focus is to study the effect of strong magnetic field on the quarkonium properties. The
binding energies and the dissociation temperature for the ground and the first excited states of the charmonium and
bottomonium in the presence of strong magnetic field at chemical potential μ = 500 MeV has been studied. Here we use
quasiparticle(QP) Debye mass depending upon temperature, magnetic field and chemical potential obtained from the
quasiparticle approach. The Debye mass strongly increases at different values of temperature and magnetic field. The binding
energy decreases with increase in the temperature at different magnetic field eB=0.3, 0.5, and 0.7 GeV2 and also decreases with
magnetic field at different at T=200,300 and 400 MeV for the J/ψ, Ψ’, ϒ, and ϒ’ states of the quarkonia. The dissociation
temperature of the quarkonium states falls with the increasing values of the magnetic field at critical temperature Tc =197 MeV
Social media sentiment analysis on third booster dosage for COVID-19 vaccination: a holistic machine learning approach
Over a period of more than two years the public health has been experiencing legitimate threat due to COVID-19 virus infection. This article represents a holistic machine learning approach to get an insight of social media sentiment analysis on third booster dosage for COVID-19 vaccination across the globe. Here in this work, researchers have considered Twitter responses of people to perform the sentiment analysis. Large number of tweets on social media require multiple terabyte sized database. The machine learned algorithm-based sentiment analysis can actually be performed by retrieving millions of twitter responses from users on daily basis. Comments regarding any news or any trending product launch may be ascertained well in twitter information. Our aim is to analyze the user tweet responses on third booster dosage for COVID-19 vaccination. In this sentiment analysis, the user sentiment responses are firstly categorized into positive sentiment, negative sentiment, and neutral sentiment. A performance study is performed to quickly locate the application and based on their sentiment score the application can distinguish the positive sentiment, negative sentiment and neutral sentiment-based tweet responses once clustered with various dictionaries and establish a powerful support on the prediction. This paper surveys the polarity activity exploitation using various machine learning algorithms viz. Naïve Bayes (NB), K- Nearest Neighbors (KNN), Recurrent Neural Networks (RNN), and Valence Aware wordbook and sEntiment thinker (VADER) on the third booster dosage for COVID-19 vaccination. The VADER sentiment analysis predicts 97% accuracy, 92% precision, and 95% recall compared to other existing machine learning models
Movie's-Emotracker: Movie induced emotion detection by using EEG and AI tools
The proposed work “Movie’s-Emotracker” has been designed to track movie induced emotions by using electroencephalography signals and artificial intelligence tools. Electrodes placed with human brain scalp while watching movies and send through BrainTech Traveler system to store data as numerical form. In this procedure of data acquisition, we used 25 video clips applied on 20 participations for detecting a distinct emotional state using brain signals. Due to watching movie occipital lobe is active, due to listen movie temporal lobes is active, parietal due to thinking about the movie and frontal lobe for emotion detection. 1–30 Hz bandpass filter used for filtering, for artifact removal used independent component analysis, feature extraction by Root mean square, classification done by Self-assessment Manikins and Back propagation neural network. Finally, movie induced emotions categorized as negative, natural and positive emotion. Observations are analyzed by proposed system and movie rating will be send to the user’s smart phone, based on previous rating the users also be alert about the movie type. Average test accuracy of our proposed work is 90% and above. The current system can be used for weak old aged peoples, teenagers and also used for psychological guide, and the system will be prodigious impression on the world
A study of comparison of PUVASOL and NBUVB in patients with vitiligo
Introduction: Vitiligo is an acquired, hypomelanotic disease, characterized by circumscribed depigmented macules. Phototherapy, which is the use of ultraviolet irradiation with or without exogenous photosensitizer is a well established treatment option. Psoralens with sunlight as the source of ultraviolet A-rays is known as PUVASOL. Narrow band Ultraviolet B phototherapy (NBUVB; 311–313 nm) has been introduced over the past decade. Aims: To study the clinical effectiveness and assess the safety of NBUVB and PUVASOL therapy in Vitiligo patients. Methods: The patients were randomly allocated in to two groups containing 25 patients each. Group A patients received NBUVB with an initial dose of 250 mJ/cm2, incremented by 20% with each subsequent visit till optimum dose was achieved, twice a week on non-consecutive days. Group B patients received PUVASOL-oral Trimethylpsoralen or topical 0.2% w/w Trioxsalen followed by exposure to sunlight, twice a week on non-consecutive days. The extent of repigmentation was documented at regular intervals upto 6 months. Results: Amongst patients receiving NBUVB and PUVASOL, 56% and 48% had ≥50% repigmentation respectively. Disease was unstable in 48% and 36% of patients prior to commencement of therapy which reduced to 12% and 16% after therapy, respectively. 16% and 36% of the patients experienced side effects and 76% and 48% showed excellent colour match of the repigmented patches respectively. Conclusion: While both PUVASOL and NBUVB are both good therapeutic options; NBUVB therapy is found to be more effective and more cosmetically acceptable, with better colour matching of lesions and minimal adverse effects