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18/09/2017, 09:30
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Robert McKeown (Jefferson Lab)18/09/2017, 10:00
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James Vary (Iowa State University)18/09/2017, 10:30
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Chueng Ji (North Carolina State University)18/09/2017, 11:30
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Asit De (Saha Institute of Nuclear Physics)18/09/2017, 12:00
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Bipasha Chakraborty (Jefferson Lab)18/09/2017, 14:00
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Gagan Mohanty (TIFR Mumbai)18/09/2017, 14:20
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Lotte Ansgaard Thomsen (Yale University (US))18/09/2017, 14:40
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Ashok Kumar (University of Delhi (IN))18/09/2017, 15:00
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Gerhard Brandt (Georg-August-Universitaet Goettingen (DE))18/09/2017, 15:20
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Radhey Shyam (Saha Institute of Nuclear Physics)18/09/2017, 15:40
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Tobias Frederico (Instituto Tecnologico de Aeronautica)18/09/2017, 16:30
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Vladimir Karmanov (Lebedev Physical Institute of Russian Academy of Sciences)18/09/2017, 17:00
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Carlos Camacho18/09/2017, 17:30
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Rajiv Gavai (Tata Institute, Mumbai, India)19/09/2017, 09:00
(Public Lecture)
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Abhay Deshpande (Stony Brook University)19/09/2017, 10:00
(Public Lecture)
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Prolay Mal (National Institute of Science Education and Research (IN))19/09/2017, 11:30
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Ivana Hristova (Humboldt University of Berlin (DE))19/09/2017, 12:00
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Seema Bahinipati (National Institute of Science Education and Research (IN))19/09/2017, 14:00
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James Vary (Iowa State University)19/09/2017, 15:30
(Public Lecture)
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Robert McKeown (Jefferson Lab)19/09/2017, 16:30
(Public Lecture)
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Abhay Deshpande (Stony Brook University)20/09/2017, 09:00
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Mauro Anselmino (Torino University and INFN)20/09/2017, 09:30
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Piet Mulders (VU/Nikhef)20/09/2017, 10:00
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Wally Melnitchouk20/09/2017, 10:45
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Asmita Mukherjee (IIT Bombay)20/09/2017, 11:15
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Dipankar Chakrabarti (IIT Kanpur)20/09/2017, 11:45
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Tanmay Maji (Indian Institute of Technology Kanpur.)20/09/2017, 13:30
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Mriganka Mondal (Institute of Physics (IN))20/09/2017, 13:50
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Narinder Kumar (Indian Institute of Technology Kanpur)20/09/2017, 14:10
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Jai More (Indian Institute of Technology Bombay)20/09/2017, 14:30
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Sreeraj Nair (IISER Bhopal)20/09/2017, 14:50
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Abhiram Kaushik (Indian Institute of Science, India)20/09/2017, 15:10
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Ajit Srivastava (Institute of Physics, India)20/09/2017, 16:30
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Alfred Stadler (University of Évora)20/09/2017, 17:00
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Sudhir Raniwala (University of Rajasthan (IN))20/09/2017, 17:30
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Rohini Godbole (Indian Institute of Science (IN))21/09/2017, 09:00
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Chris White (Queen Mary University of London)21/09/2017, 09:30
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Pankaj Jain (I.I.T. Kanpur)21/09/2017, 10:00
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Shunzo Kumano (KEK)21/09/2017, 11:00
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Kanchan Khemchandani21/09/2017, 11:30
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Alberto Torres (University of Sao Paulo)21/09/2017, 12:00
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Wayne Polyzou (University of Iowa)22/09/2017, 09:00
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Elmar Biernat (Instituto Superior Tecnico, Universidade de Lisboa)22/09/2017, 09:30
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João de Melo (Universidade Cruzeiro do Sul)22/09/2017, 10:00
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Xingbo Zhao (Institute of Modern Physics, Chinese Academy of Sciences)22/09/2017, 11:00
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Chandan Mondal (Institute of Modern Physics, Chinese Academy of Sciences)22/09/2017, 11:30
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Jorge Nogueira (Instituto Tecnológico de Aeronáutica and 'Sapienza' Università di Roma)22/09/2017, 12:00
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Sourabh Dube (Indian Institute of Science Education and Research (IN))22/09/2017, 14:00
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Usha Kulshreshtha (Kirori Mal College, University of Delhi, India)22/09/2017, 14:20
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Ruben Sandapen (Acadia University)22/09/2017, 14:40
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sreemoyee sarkar (UM-DAE Centre for Excellence in Basic Sciences)22/09/2017, 15:00
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Lubomir Martinovic (Institute of Physics SAS)22/09/2017, 15:20
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Anuradha Misra22/09/2017, 16:30
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Dayashankar Kulshreshtha (University of Delhi, India)22/09/2017, 17:00
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Stanley Brodsky (SLAC National Accelerator Laboratory, Stanford University)22/09/2017, 17:30
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Dipankar Chakrabarti (IIT Kanpur)
Azimuthal spin asymmetries provide valuable information about the
three dimensional structure of proton. According to the factorization theorem, azimuthal asymmetries are related to the transverse momentum dependent (TMDs) distributions which provide information about three dimensional structure as
well as spin structure of proton.
In this talk, I will present the results of azimuthal spin... -
Prof. Vladimir Karmanov (Lebedev Physical Institute of Russian Academy of Sciences)
The bound state Bethe-Salpeter amplitude was expressed by Nakanishi using a two-dimensional integral representation, in terms of a smooth weight function g, which carries the detailed dynamical information. A similar, but one-dimensional, integral representation can be obtained for the Light-Front wave function in terms of the same weight function g. By using the generalized Stieltjes...
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Dr Sanjeev Kumar (University of Delhi)
In this work we propose to present some new results obtained
in a study of the phase diagram of charged compact boson stars
in a theory involving a massless complex scalar field with a conical potential
coupled to a U(1) gauge field and gravity. In particular, we present the
new bifurcation points obtained in the phase diagram of this theory.
The theory is seen to contain rich physics in a... -
Prof. Radhey Shyam (Saha Institute of Nuclear Physics)
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\begin{center}
\Large{\bf Charm production in interactions of antiprotons with proton and nuclei
at ${\bar P}ANDA$ facility
}\
\vskip 0.1in
{\large{\bf R.~Shyam$^1$ and... -
Dr Ruben Sandapen (Acadia University)
We take into account dynamical spin effects in the holographic light-front wavefunction of the pion in order to predict the pion decay constant, radius, EM form factor, Distribution Amplitude and Transition form factor. We report a remarkable improvement in the description of all data.
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Dr Narinder Kumar (Indian Institute of Technology Kanpur)
We study the Wigner distributions for a physical electron, which reveal the multidimensional images of the electron. The physical electron is considered as a composite system of a bare electron and photon. The Wigner distributions for an unpolarized, longitudinally polarized and transversely polarized electron are presented in transverse momentum plane as well as in impact...
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Prof. Pankaj Jain (IIT Kanpur)
The end point model is based on the assumption that exclusive
hadronic processes at large momentum transfer get dominant contribution
from the kinematic region corresponding to Feynman x approximately equal
to one. The reaction proceeds by hard scattering of only one of the quarks
while the remaining quarks act as soft spectators. The process involves
non-perturbative physics and we are... -
Deepesh Bhamre (University of Mumbai)
We revisit the proof of equivalence of one loop expressions for fermion self-energy and vertex correction in light-front time-ordered perturbation theory (LFTOPT) and Covariant QED at the Feynman diagram level emphasizing the importance of the three-term photon propagator in light-front gauge. We generalize the proof of equivalence for one loop vertex correction diagram which was presented...
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Dr JAI MORE (Indian Institute of Technology Bombay)
We study the Wigner distribution of gluon in light-front dressed quark model using the overlap of light front wave functions (LFWFs). In a dressed quark model, instead of a proton state, we assume the target state as a composite spin 1/2 state of quark dressed with a gluon. This state allows us to calculate the gluon Wigner distribution analytically in term of LFWFs using Hamiltonian...
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Prof. James Vary (Iowa State University)
Recent developments using Basis Light Front Quantization (BLFQ) [1-3] will be summarized and applications to meson and baryon systems will be presented. We will present results for spectroscopy, form factors, distribution amplitudes and decays. Starting from the heavy quarkonia systems, charmonia and bottomonia, we proceed towards lighter mesons and then to baryons. The Hamiltonian eigenvalue...
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Shunzo Kumano (KEK)
Three-dimensional structure functions have been investigated by generalized parton distributions (GPDs), transverse-momentum-dependent parton distribution (TMDs), and generalized distribution amplitudes (GDAs). The GPDs and GDAs are related with other by the s-t crossing of the Mandelstam variables, and they contain spacelike and timelike form factors of the energy-momentum tensor, so that...
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Alfred Stadler (University of Évora)
The masses and vertex functions of heavy and heavy-light mesons, described as quark-antiquark bound states, are calculated with the Covariant Spectator Theory (CST). The CST two-body bound-state equation is similar to the Bethe-Salpeter equation, an integral equation formulated in Minkowski space with a kernel of two-particle irreducible Feynman diagrams describing the quark-antiquark...
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Guangyao Chen (Iowa State University)
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Dr Ashok Kumar (University of Delhi, Delhi, India)
Latest results from the CMS experiment on studies of Higgs boson production are presented. Searches involving 125 GeV Higgs boson using various Standard Model production and decay modes have been performed using proton proton collisions from data accumulated during the LHC Run II with center of mass energy of 13 TeV. Similar dataset have also been used to place constraints on physics beyond...
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Dr Paramita Deb (IIT Bombay)
The strongly interacting matter is supposed to have a rich phase structure at finite temperature and density. While our Universe at present epoch contains a significant fraction of color singlet hadrons, color non-singlet states especially quarks and gluons may have been prevalent in the few microseconds after the Big bang. One of the fundamental goals of the heavy ion collision experiments is...
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Prolay Mal (National Institute of Science Education and Research (IN))
During the LHC Run 2, the CMS experiment has so far recorded ~50 /fb of proton-proton collision data at sqrt(s)=13 TeV. With such a large volume of data-set at an unprecedented energy, CMS has updated most of its new physics searches while the precision on various SM measurements has substantially improved. This presentation would feature most recent results on Higgs boson, Top quark, flavor...
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Prof. Usha Kulshreshtha (Kirori Mal College, University of Delhi, India)
In this talk, I will consider the instant-form and light-front quantization
of some field theory models and demonstrate the advantages of the light-front
quantization over the instant-form quantization. -
Prof. Chueng-Ryong Ji (Department of Physics, North Carolina State University)
The instant form and the front form of relativistic dynamics proposed by Dirac in 1949 can be linked by introducing an interpolating angle. Entwining the fermion propagator interpolation with our previous works of the interpolating helicity spinors[1] and the electromagnetic gauge field interpolation[2], we now complete the interpolation between these two forms of quantum electrodynamics...
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Dr Mriganka Mouli Mondal (for STAR Collaboration, Institute of Physics, Bhubaneswar)
At very low Bjorken x, parton densities in a nucleon/nucleus reach a point where the gluons are expected to transit to a saturation regime. The saturation scale ($Q_s$) is defined as the inverse of typical transverse inter-partonic distance and can be expressed as $Q_s\sim(A/x)^{1/3}$. So far no clear experimental observation of the onset of gluon saturation has been made. Observables at...
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Mr George Yabusaki (Instituto Tecnologico de Aeronautica)
Using the light-front kaon wave function based on a Bethe-Salpeter amplitude model for the quark-meson interaction, we study the electromagnetic form factors, decay constants and charge radii of the kaon in nuclear medium within the framework of light-front ?eld theory.
The kaon model we adopt is well constrained by previous studies to explain the kaon properties in vacuum.
The above mentioned... -
Dr Chandan Mondal (Institute of Modern Physics, Chinese Academy of Sciences)
We evaluate both chirally even and odd generalized parton distributions(GPDs) in the leading twist in a recently proposed quark-diquark model for the proton where the light-front wavefunctions are constructed from the soft-wall AdS/QCD prediction. The GPDs in transverse impact parameter space give the spin densities for different quark and proton polarizations. For longitudinally polarized...
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Tanmay Maji (Indian Institute of Technology Kanpur.)
Transverse momentum dependent parton distributions (TMDs) encode three
dimensional structure as well as angular momentum information of a hadron and hence have attracted a lot of attention in recent time. We present all the twist-2 TMDs for proton in a light-front quark-diquark model (LFQDM) where the light front wave functions are modeled from AdS/QCD prediction. The relations among
the TMDs... -
Dr Anton Ilderton (Plymouth University)
Intense laser-matter interactions offer not only a novel experimental testing ground for fundamental physics, but also an ideal setting for exploring lightfront field theory.
I will give an overview of the application of lightfront field theory to laser-matter interactions in the relativistic and quantum regime. Topics will include non-perturbative pair production and the physical...
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Anton Ilderton (Plymouth University)
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Prof. Tobias Frederico (Instituto Tecnológico de Aeronáutica)
In this contribution I will review the recent advances in the description of light mesons, in particular the pion, as solutions of the Bethe-Salpeter equation in Minkowski space. The tool to solve the Bethe-Salpeter equation is the Nakanishi integral representation and light-front projection. Results for a "mock" pion light-front wave function based on a massive vector exchange, mimicking the...
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Prof. Wayne Polyzou (University of Iowa)
We use a basis of Daubechies scaling functions and wavelets to make an exact multi-resolution decomposition of a quantum field theories. The representation has natural resolution and volume truncations. We discuss the use of flow equation methods to decouple scales in volume and resolution truncations of the
theory. Using the example of a free scaler field theory, where different scales... -
Xingbo Zhao (Institute of Modern Physics, Chinese Academy of Sciences)
In this talk I will report our recent progress on nonperturbative renormalization scheme in Hamiltonian light-front theory. Our study is based on Basis Light-front Quantization (BLFQ), a nonperturbative method in Hamiltonian formalism and with Fock-sector truncation. So far our study has been focusing on the physical electron system (in |e>+|egamma>) and the positronium system (in...
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Doris Yangsoo Kim (Soongsil University)
The Belle II experiment, being constructed at the KEK laboratory in Japan, is a substantial upgrade of the Belle detector. The construction of the SuperKEKB accelerator, which is the upgrade of the KEKB accelerator, has been just completed. It aims to collect 50 times more data than the existing B-Factory samples beginning in 2018.
Belle II is uniquely positioned to study the so-called "XYZ"...
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Neetika Sharma (Department of Physical Sciences, I K Gujral Panjab Technical University, Jalandhar, Kapurthala-144603, Punjab, India.)
We predict the rate of diffractive phi meson electro-production using the Impact-parameter dependent Color Glass Condensate dipole model. We use an anti de -Sitter/quantum chromodynamics holographic light front wavefunction. Our predictions are compared to the available HERA data.
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Elmar Biernat (Instituto Superior Tecnico, Universidade de Lisboa)
We introduce a covariant approach in Minkowski space for the description of quarks and mesons that exhibits both chiral-symmetry breaking and confinement. Our quark-antiquark interaction kernel is the sum of a one-gluon exchange and a covariant generalization of the linear confining interaction. We assume a Lorentz vector structure for the one-gluon-exchange and a mixed equally-weighted...
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Ms Nisha Dhiman (Dr. B. R. Ambedkar National Institute of Technology Jalandhar)
We study the decay constants of pseudoscalar and vector $B$ meson in the framework of light cone quark model (LCQM). We apply the variational method to the relativistic Hamiltonian with the Gaussian-type trial wave function to obtain the values of $\beta$ (scale parameter). Then with the help of known values of constituent quark masses, we obtain the numerical results for the decay constants...
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Mr Jorge Henrique Alvarenga Nogueira (Università di Roma “La Sapienza”; INFN, Sezione di Roma; Instituto Tecnológico de Aeronáutica)
Understanding the hadronic interactions from basic principles is one of the most important challenges in modern nuclear/particle physics.
This task is very difficult and it is therefore important to perform non-perturbative studies of few-body systems using simple models, in order to understand the response of such systems to different contributions to the interaction.
For example, ladder and... -
Dr Bipasha Chakraborty (Jefferson Lab)
Most of the hadrons in nature are not stable under the strong interaction and appear as resonances in the scattering of lighter hadrons. Therefore, the study of resonances (often in coupled-channel scattering) lets us understand the workings of QCD in its low-energy non-perturbative region. This is a challenging field and there have been many advancements in this area using lattice QCD over...
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Ms Namrata Manglani (University of Mumbai and Shah and Anchor Kutchh Enggineering College)
Many beyond-Standard-Model (BSM) theories predict massive new particles. The detection of such massive particles at the Large Hadron Collider (LHC) is very challenging. Heavy mass of these particles ensures their dominant decay to top quarks. The top quarks coming from such massive particles are heavily boosted. Thus, the search for boosted tops allows the detection for these particles.
We... -
Sourabh Shishir Dube (Indian Institute of Science Education and Research (IN))
I will discuss the results of searches for various new physics phenomena in the pp collisions at 13 TeV delivered by LHC and collected with the CMS detector in last couple of years. These searches cover a broad spectrum of beyond standard model physics models. In many cases, these results are the most stringent limits on these new phenomena.
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Sudhir Raniwala (University of Rajasthan (IN))
Properties of nuclear matter at large densities have been investigated by colliding nuclei at progressively increasing energies over the last three decades. The features of strongly interacting matter have been studied systematically in collisions of a wide range of interacting-system sizes. The ALICE experiment at CERN continues to record data in pp collisions and in Pb-Pb collisions at the...
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Mr Rajesh Sangem (IIT Bombay), Asmita Mukherjee (IIT Bombay)
Gluon SIvers function (GSF) and Boer-Mulders function (BMF) have been receiving lot of interest both
theoretically and experimentally, as they provide the information about the spin nature of the hadron.
GSF describes the distribution of unpolarized gluons inside the transversely polarized proton. Gluon version
BMF represents the density of linearly polarized gluons inside an unpolarized... -
Dr Sreeraj Nair (IISER Bhopal)
We study the TMDs in SIDIS process within the framework of Soft-collinear effective
filed theory (SCET). We calculate the factorized spin dependent cross-section for SIDIS and formulate the matrix elements corresponding to the TMDs.
We focus on the Sivers TMD resulting when the target is transversely polarized with unpolarized quarks. The matching coefficients at tree and one loop level are calculated. -
Prof. Anuradha Misra (Univerity of Mumbai)
Perturbative expressions for many QCD observables measured at colliders are plagued by large logarithmic corrections which arise after cancellation of real and virtual contributions. These large logarithmic corrections, which arise either at small $Q_T$ or at partonic threshold can be organized and brought under control through all order resummation. Joint resummation formalism allows...
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Dr João Pacheco Bicudo Cabral de Melo (Universidade Cruzeiro do Sul)
The annihilation or production process $e^++e^-\rightarrow \rho^+ + \rho^- $ is studied with respect to the
universal perturbative QCD (pQCD) predictions. Sub-leading contributions
are considered together with the universal leading pQCD amplitudes such that
the matrix elements of the $\rho$-meson electromagnetic current satisfy
the constraint from the light-front angular condition. The ... -
Prof. Dayashankar Kulshreshtha (University of Delhi, India)
In this talk I would present some fascinating new results obtained
in the gravity theory in general relativity. -
Ms Satvir Kaur (Dr. B.R. Ambedkar National Institute of Technology, Jalandhar)
We investigate the Generalized Transverse-Momentum Dependent Distributions (GTMDs) describing the parton structure of hadrons using the light-front scalar-diquark model. In particular, we study the twist-2 GTMDs for scalar ($\gamma ^+$) diquark and the corresponding Wigner distributions for the unpolarized, longitudinally unpolarized and transversely unpolarized proton. The relation of...
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Prof. Stanley J. Brodsky (SLAC National Accelerator Laboratory, Stanford University)
A remarkable feature of QCD is that the mass scale which controls color confinement and hadron mass scales
does not appear explicitly in the QCD Lagrangian. However, de Alfaro, Fubini, and Furlan have shown that a
mass scale $\kappa$ can appear in the equations of motion without affecting the conformal invariance of the action if one
adds a term to the Hamiltonian proportional to the... -
Gagan Mohanty (TIFR Mumbai)
Supersymmetry (SUSY) is the most popular model for new physics as it is able to address some of the fundamental drawbacks of the standard model (SM) of particle physics. Among them are the 'hierarchy problem' that deals with a huge gap in the strength of gravitational and electroweak interactions, and absence of suitable candidate for dark matter. For each SM particle, SUSY introduces a...
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Kavita Lalwani (Malaviya National Institute of Technology Jaipur)
The Belle II experiment at the asymmetric e+ e− SuperKEKB collider is a major upgrade of the Belle experiment, which ran at the KEKB collider at the KEK laboratory in Japan. The design luminosity of SuperKEKB is 8 × 10$^{35}$ cm$^{−2}$ s$^{−1}$, 40 times higher than that of KEKB. The expected integrated luminosity of Belle II is 50 ab$^{−1}$, 50 times higher than that of Belle. The experiment...
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Dr Lubomir Martinovic (Institute of Physics, Bratislava and BLTP JINR Dubna)
We present a review of a few operator solutions of the Schwinger model found it the past along with a new solution obtained within the light-front field theory. In the former results, a few subtle points, related to the residual gauge invariance in the covariant gauge and to the choice of field variables, are identified and an improvement is suggested. Then a summary of the previous...
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Mr Bipin Sonawane (University of Mumbai,)
Transverse Single Spin Asymmetries (TSSAs) in $J/\psi$ production in scattering of low virtuality electrons/unpolarised proton target have been proposed as promising tools to explore the Gluon Sivers Function (GSF). We estimate TSSA in electroproduction of $J/\psi$ for JLab, HERMES, COMPASS, and e-RHIC energies and in hadroproduction of $J/\psi$ for RHIC energies. We present estimates of TSSAs...
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Piet Mulders (VU/Nikhef)
Light-front quantized quark and gluon states (partons) play a dominant role in high energy scattering processes. The initial state in these processes is a mixed ensemble of partons, while any produced pure partonic state appears as a mixed ensemble in the 3D world of the detector. The transition from collinear hard physics to the 3D structure including partonic transverse momenta is related to...
-
Ms Navdeep Kaur (Dr. B.R. Ambedkar National Institute of Technology, Jalandhar)
In the present work, we have studied the transverse momentum distributions (TMDs) in spin-one diquark model. We have used the overlap representation of light-front wave functions (LFWFs) where the spin-1/2 relativistic composite system consists of spin-1/2 fermion and spin-1 vector boson. The results have been obtained for T-even TMDs ( h_{1} and h_{1T}^{perp} ) in transverse momentum plane...
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Dr Mriganka Mouli Mondal (for STAR Collaboration, Institute of Physics, Bhubaneswar)
Large Transverse Single Spin Asymmetries ($A_N$) for forward rapidity inclusive hadron production have been observed over a wide range of center of mass energies. This large $A_N$ has been described by phenomenological TMD models like Sivers and Collins mechanisms for initial and final state effects respectively, or by higher twist contributions in the initial and final states. It is...
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Mr Abhiram Kaushik B (IISc)
We propose the low-virtuality leptoproduction of open charm, $p^\uparrow l\rightarrow D^0+X$, treated here in a generalized parton model framework, as a probe of the gluon Sivers function
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Dr Sreemoyee Sarkar (UM-DAE Centre for Excellence in Basic Sciences Health Centre, University of Mumbai, Vidyanagari Campus, Kalina, Santacruz (East), Mumbai 400098, India)
Jet quenching provides tomographic information of the evolution of the QCD matter formed
in the ultra-relativistic heavy ion collisions.
Perturbative QCD calculation for the jet quenching requires the informations of both elastic and
inelastic scatterings. We study the heavy quark radiative
energy loss in a dynamically screened expanding QCD medium by incorporating the
off-equilibrium... -
Dr Chris White (Queen Mary University of London)
Wilson lines have a number of uses in non-abelian gauge theories. A topical example in QCD is the description of radiation in the soft or collinear limit, which must often be resummed to all orders in perturbation theory. The relevant functions needed to describe this radiation involve Wilson lines, and new methods are needed to extend such calculations beyond the state of the...
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Vivek Kamal (University Of Delhi)
We study the wormholes in a theory involving massive complex scalar phantom field coupled to gravity. We consider a specific model defined by a certain action and a particular metric tensor and appropriate boundary conditions which provide us the desired wormhole solution. We construct the mathematical formalism for our model and obtain the Einstein equation and the matter field equations and...
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Minati Biswal (The Institute of Mathematical Sciences)
We study $Z_N$ symmetry in $SU(N)+$Higgs theories. The $Z_N$ symmetry can act only
on the gauge fields, the action is not invariant. This leads to explicit breaking of $Z_N$ symmetry. However, we find that the strength of the explicit breaking depends on the parameters of the theory, vanishing in parts of the symmetric phase. According to conventional expectations the symmetry is restored only...
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