## Who Am I?

Hi! This is Taushif Ahmed! Currently, I'm a Research Associate at INFN Torino, University of Torino in Italy. I worked as a post-doctoral scientist at Max-Planck-Institute for Physics at Munich in Germany from October 2018 to September 2020. I work on theorretical physics. Understanding the connection among various gauge theories from the perspective of transcendentality weight and infrared structures, making precise theoretical predictions through computing radiative corrections to scattering amplitudes and observables employing state-of-the-art techniques are my primary objectives. My primary focus is on maximally supersymmetric Yang-Mills theory, perturbative QCD and Electroweak theory.

Research

## My Research

• Multi-loop and multi-leg calculations in perturbative QCD & Electroweak theory, $$\cal N$$=4 SYM.
• Computations of Feynman integrals
• Threshold correction and threshold resummation
• Collider Physics phenomenology
• EFT in Gravity from the Perspective of Modern Methods of Scattering Amplitudes
• My Specialty

## My Skills

• Theoretical Physics: Quantum Chromodynamics (QCD), Standard Model, $$\cal N$$=4 supersymmetric Yang-Mills
• Programming: FORM, Mathematica, C++, Fortran
• Integration-by-parts reduction packages: FiniteFlow, FIRE, Kira, Reduze, LiteRed
• Numerical integration: pySecDec
• Operating systems: Linux, MacOS
• Text editors: Vim, Emacs
• $$\LaTeX$$, HTML
Findings

## Publication

#### My research profile on INSPIREHEP

The renormalization constant $$Z_J$$ of the flavor-singlet axial-vector current with a non-anticommuting $$\gamma_5$$ in dimensional regularization is determined to order $$\alpha_s^3$$ in QCD with massless quarks. The result is obtained by computing the matrix elements of the operators appearing in the axial-anomaly equation between the vacuum and a state of two (off-shell) gluons to 4-loop order.

We consider QCD corrections to two loops for the polarized amplitudes of $$q{\bar q}\to Z +$$ Higgs boson. First we show how the polarized amplitudes of $$b \bar{b} \rightarrow Z h$$ associated with a non-vanishing $$b$$-quark Yukawa coupling and a scalar or pseudoscalar Higgs boson $$h$$ can be built up solely from vector form factors (FF) of properly grouped classes of diagrams, bypassing completely the need of explicitly manipulating $$\gamma_5$$ in dimensional regularization (up to a few anomalous'', i.e., triangle diagrams). We determine the contributions of the triangle diagrams in the heavy top limit. We present the analytic results of the vector FF and the triangle-diagram contributions to the axial vector FF, which are sufficient for deriving the two-loop QCD amplitudes for $$b \bar{b} \rightarrow Z h$$ with a CP-even and CP-odd Higgs boson $$h$$. We derive the respective Ward identity for these amplitudes, which are subsequently verified to two-loop order in QCD using these FF. In addition, the FF of a class of corrections to $$q \bar{q} \rightarrow ZH$$ proportional to the top-Yukawa coupling are obtained analytically to two-loop order in QCD in the heavy-top limit using the Higgs-gluon effective Lagrangian where the top quark is integrated out. We address a pitfall that occurs when applying the non-anticommutating $$\gamma_5$$ prescription to this class of contributions that has been overlooked so far in the literature. We attribute this issue to the fact that the absence of certain heavy-mass expanded diagrams in the infinite-mass limit of a scattering amplitude with an axial vector current depends on the particular $$\gamma_5$$ prescription in use.

We present the first calculations of two-point two-loop form factors (FFs) with two identical operators insertion in maximally supersymmetric Yang-Mills theory. In this article, we consider the supersymmetry protected half-BPS primary and unprotected Konishi operators. Unlike the Sudakov FFs of half-BPS primary, the FFs involving two half-BPS operators are found to contain lower transcendentality weight terms in addition to the highest ones. Moreover, in contrast to Sudakov FFs, the highest weight terms of the FFs of double half-BPS no longer match with that of double Konishi. We also find that the principle of maximal transcendentality which dictates the presence of identical highest weight terms in the scalar FFs of half-BPS and quark/gluon FFs in QCD does not hold true anymore for insertions of two identical operators. We discover the absence of any additional ultraviolet counterterm that could arise from the contact interaction between two composite operators

We compute all helicity amplitudes for four particle scattering in massless QCD with $$n_f$$ fermion flavours to next-to-next-to-leading order (NNLO) in perturbation theory. In particular, we consider all possible configurations of external quarks and gluons. We evaluate the amplitudes in terms of a Laurent series in the dimensional regulator to the order required for future next-to-next-to-next-to-leading order (N$$^3$$LO) calculations. The coefficients of the Laurent series are given in terms of harmonic polylogarithms that can readily be evaluated numerically. We present our findings in the conventional dimensional regularisation and in the t’Hooft-Veltman schemes.

Production of the Higgs boson, H in association with a massive vector boson, V , i.e., the V H process, plays an important role in the explorations of Higgs physics at the Large Hadron Collider, both for a precise study of Higgs’ Standard Model couplings and for probing New Physics. In this publication we present the two-loop corrections in mass- less quantum chromodynamics (QCD) to the amplitude of the Higgs production associated with a Z boson via the bottom quark-antiquark annihilation channel with a non-vanishing bottom-quark Yukawa coupling, which is a necessary ingredient of the full next-to-next- to-leading-order QCD corrections to the V H process in the five-flavour scheme. The com- putation is performed by projecting the D-dimensional scattering amplitude directly onto an appropriate set of Lorentz structures related to the linear polarisation states of the Z boson. We provide analytic expressions of the complete set of renormalised polarised amplitudes in terms of polylogarithms of maximum weight four. To give an estimation of the size of contributions from amplitudes considered in this work, we compute numerically the resulting cross sections under the soft-virtual approximation. We also take the oppor- tunity to make a dedicated discussion regarding an interesting subtlety appearing in the conventional form factor decomposition of amplitudes involving axial currents regularised in D dimensions.

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JHEP 2001 (2020) 030

Taushif Ahmed, A. H. Ajjath, Long Chen, Prasanna K. Dhani, Pooja Mukherjee and V. Ravindran

Form factors are important ingredients to investigate the principle of maximal transcendentality (PMT) and to extract anomalous dimensions of local gauge invariant operators. In this article, we compute several two- and three-point FFs to three- and two- loops, respectively, for three different choices of local gauge invariant operators in $$\cal N$$ = 4 super Yang-Mills (SYM) theory. The operators O1 and O2 are flavour and helicity blind configurations of supersymmetric descendant of the half-BPS and Konishi primary, respec- tively, and O3 is the energy-momentum tensor. The operators O1 and O2 are composed of non-protected dimension-three (classical) fermionic and scalar components belonging to SU(2|3) closed sub-sector of $$\cal N$$ = 4 SYM. We analyse the mixing among the non-protected fermionic and scalar components of these operators up to three-loops in perturbation the- ory and consequently, compute the quantum corrections to the corresponding dilatation operators. The highest transcendental (HT) weight terms of the FFs of O1 are found to be independent of the external on-shell states and, moreover, those are equal to that of half-BPS, however, this does not hold true for the FFs of O2. FFs of the O3 exhibit identical behaviours to that of half-BPS, in concordance with the classical expectations. However, the three-point FFs of O3 violate the PMT while comparing with the corresponding quan- tity in the standard model, observed for the first time at the level of FF.

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Under review

Taushif Ahmed, Pulak Banerjee, Amlan Chakraborty, Prasanna K. Dhani and V. Ravindran

The two-loop four-point amplitude of two massless SU(N) colored scalars and two color singlet massive particles with different virtuality described by a half-BPS and Konishi operators is calculated analytically in maximally supersymmetric Yang-Mills the- ory. We verify the ultraviolet behaviour of the unprotected composite operator and ex- ponentiation of the infrared divergences with correct universal values of the anomalous dimensions in modified dimensional reduction scheme. The amplitude is found to contain lower transcendental weight terms in addition to the highest ones and the latter has no similarity with similar amplitudes in QCD.

We solve renormalization group equations that govern infrared divergences of massless and massive form factors. By comparing to recent results for planar massive three-loop and massless four-loop form factors in QCD, we give predictions for the high- energy limit of massive form factors at the four- and for the massless form factor at five-loop order. Furthermore, we discuss the relation which connects infrared divergences regularized dimensionally and via a small quark mass and extend results present in the literature to higher order.

We investigate the interaction of spin-2 fields with those of the Standard Model in a model independent framework. We have considered interactions where the spin-2 fields couple to two sets of gauge invariant tensorial operators that are not conserved unlike the energy momentum tensor with different coupling strengths. Such interactions not only change the ultraviolet behaviour of the couplings but also expand the scope of the searches of spin-2 particles at the colliders. We present all the relevant renormalisation constants up to three loop level in QCD and also the form factors that contribute to poten- tial observables. This sets the ground to investigate the phenomenological consequences of these interactions with spin-2 fields through more than one tensorial operator.

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Phys.Rev. D95 (2017) no.3, 034035

Taushif Ahmed, Pulak Banerjee, Prasanna K. Dhani, Prakash Mathews, Narayan Rana and V. Ravindran

We present the first results on the third order corrections to on-shell form factor (FF) of the Kon- ishi operator in $$\cal N$$ = 4 supersymmetric Yang-Mills theory using Feynman diagrammatic approach in modified dimensional reduction (DR) scheme. We show that it satisfies KG equation in DR scheme while the result obtained in four dimensional helicity (FDH) scheme needs to be suitably modified not only to satisfy the KG equation but also to get the correct ultraviolet (UV) anomalous dimensions. We find that the cusp, soft and collinear anomalous dimensions obtained to third order are same as those of the FF of the half-BPS operator confirming the universality of the infrared (IR) structures of on-shell form factors. In addition, the highest transcendental terms of the FF of Konishi operator are identical to those of half-BPS operator indicating the probable existence of deeper structure of the on-shell FF. We also confirm the UV anomalous dimensions of Konishi operator up to third order providing a consistency check on the both UV and universal IR structures in $$\cal N$$ = 4.

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Phys.Rev. D95 (2017) no.8, 085019

Taushif Ahmed, Pulak Banerjee, Prasanna K. Dhani, Narayan Rana, V. Ravindran and Satyajit Seth

Two-loop QCD correction to massive spin-2 Graviton decaying to q + $$\overline q$$ + g is presented considering a generic universal spin-2 coupling to the SM through the conserved energy-momentum tensor. Such a massive spin-2 particle can arise in extra-dimensional models. The ultraviolet and infrared structure of the QCD amplitudes are studied. In di- mensional regularisation, the infrared pole structure is in agreement with Catani’s proposal, confirming the universal factorization property of QCD amplitudes, even with the spin-2 tensorial coupling. This computation now completes the full two-loop QCD corrections for the production of a spin-2 in association with a jet.

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Eur.Phys.J. C76 (2016) no.12, 667

Taushif Ahmed, Goutam Das, Prakash Mathews, Narayan Rana and V. Ravindran

Thefirstresultsonthecompletenext-to-next-to-leadingorder(NNLO)Quantum Chromodynamic (QCD) corrections to the production of di-leptons at hadron colliders in large extra dimension models with spin-2 particles are reported in this article. In particu- lar, we have computed these corrections to the invariant mass distribution of the di-leptons taking into account all the partonic subprocesses that contribute at NNLO. In these mod- els, spin-2 particles couple through the energy-momentum tensor of the Standard Model (SM) with the universal coupling strength. The tensorial nature of the interaction and the presence of both quark annihilation and gluon fusion channels at the Born level make it challenging computationally and interesting phenomenologically. We have demonstrated numerically the importance of our results at the Large Hadron Collider (LHC) energies. The two loop corrections contribute an additional 10% to the total cross section. We find that the QCD corrections are not only large but also important to make the predictions stable under renormalisation and factorisation scale variations providing an opportunity to stringently constrain the parameters of the models with a spin-2 particle.

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Eur.Phys.J. C77 (2017) no.1, 22

Taushif Ahmed, Pulak Banerjee, Prasanna K. Dhani, M.C. Kumar, Prakash Mathews, Narayan Rana and V. Ravindran

We consider the production of a pseudo-scalar particle A at the LHC, and present accurate theoretical predictions for its inclusive cross section in gluon fusion. The prediction is based on com- bining fixed-order perturbation theory and all-order threshold resummation. At fixed order we include the exact next-to-next-to-leading order (NNLO) plus an approximate next-to-next-to-next-to-leading or- der (N$$^3$$LO$$_A$$ which is based on the recent computation at this order for the scalar case. We then add threshold resummation at next-to-next-to-next-to leading logarithmic accuracy (N3LL'). Various forms of threshold resummation are considered, differing by the treatment of subleading terms, allowing a robust estimate of the theoretical uncertainties due to missing higher orders. With particular attention to pseudo- scalar masses of 200 GeV and 750 GeV, we also observe that perturbative convergence is much improved when resummation is included. Additionally, results obtained with threshold resummation in direct QCD are compared with analogous results as computed in soft-collinear effective theory, which turn out to be in good agreement. We provide precise predictions for pseudo-scalar inclusive cross section at 13 TeV LHC for a wide range of masses. The results are available through updated versions of the public codes ggHiggs and TROLL.

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Eur.Phys.J. C76 (2016) no.12, 663

Taushif Ahmed, Marco Bonvini, M.C. Kumar, Prakash Mathews, Narayan Rana, V. Ravindran, Luca Rottoli

We present the first results on the production of pseudo-scalar through gluon fusion at the LHC to N3LO in QCD taking into account only soft gluon effects. We have used the effective Lagrangian that describes the coupling of pseudo-scalar with the gluons in the large top quark mass limit. We have used recently available quantities namely the three loop pseudo-scalar form factor and the third order universal soft function in QCD to achieve this. Along with the fixed order results, we also present the process dependent resummation coefficient for threshold resummation to N3LL in QCD. Phenomenological impact of these threshold N3LO corrections to pseudo-scalar production at the LHC is presented and their role to reduce the renormalisation scale dependence is demonstrated.

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Eur.Phys.J. C76 (2016) no.6, 355

Taushif Ahmed, Marco Bonvini, M.C. Kumar, Prakash Mathews, Narayan Rana, V. Ravindran, Luca Rottoli

The coupling of a pseudo-scalar Higgs boson to gluons is mediated through a heavy quark loop. In the limit of large quark mass, it is described by an effective Lagrangian that only admits light degrees of freedom. In this effective theory, we compute the three- loop massless QCD corrections to the form factor that describes the coupling of a pseudo- scalar Higgs boson to gluons. Due to the axial anomaly, the pseudo-scalar operator for the gluonic field strength mixes with the divergence of the axial vector current. Working in dimensional regularization and using the ’t Hooft-Veltman prescription for the axial vector current, we compute the three-loop pseudo-scalar form factors for massless quarks and gluons. Using the universal infrared factorization properties, we independently derive the three-loop operator mixing and finite operator renormalisation from the renormalisation group equation for the form factors, thereby confirming recent results in the operator product expansion. The finite part of the three-loop form factor is an important ingredient to the precise prediction of the pseudo-scalar Higgs boson production cross section at hadron colliders. We discuss potential applications and derive the hard matching coefficient in soft-collinear effective theory.

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JHEP 1511 (2015) 169

Taushif Ahmed, Thomas Gehrmann, Prakash Mathews, Narayan Rana and V. Ravindran

Spin-2 fields are often candidates in physics beyond the Standard Model namely the models with extra-dimensions where spin-2 Kaluza-Klein gravitons couple to the fields of the SM. Also, in the context of Higgs searches, spin-2 fields have been studied as an alternative to the scalar Higgs boson. In this article, we present the complete three loop QCD radiative corrections to the spin-2 quark-antiquark and spin-2 gluon-gluon form factors in SU(N) gauge theory with nf light flavors. These form factors contribute to both quark-antiquark and gluon-gluon initiated processes involving spin-2 particle in the hadronic reactions at the LHC. We have studied the structure of infrared singularities in these form factors up to three loop level using Sudakov integro-differential equation and found that the anomalous dimensions originating from soft and collinear regions of the loop integrals coincide with those of the electroweak vector boson and Higgs form factors confirming the universality of the infrared singularities in QCD amplitudes.

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JHEP 1512 (2015) 084

Taushif Ahmed, Goutam Das, Prakash Mathews, Narayan Rana and V. Ravindran

The recent result on the third order correction to the Higgs boson production through gluon fusion by Anastasiou et al. [1] not only provides a precise prediction with reduced scale uncertain- ties for studying the Higgs boson properties but also establishes the reliability of the perturbative QCD. In this letter, we propose a novel approach to further reduce the uncertainty arising from the renormalization scale by systematically resumming the renormalization group (RG) accessible log- arithms to all orders in the strong coupling constant. Our numerical study based on this approach, demonstrates a significant improvement over the fixed order predictions.

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Taushif Ahmed, Goutam Das, M. C. Kumar, Narayan Rana and V. Ravindran

We present threshold enhanced N3LO QCD corrections to inclusive Higgs production through bottom anti-bottom annihilation at hadron colliders using threshold resummed cross section. The resummed cross section is obtained using factorization prop- erties and Sudakov resummation of the inclusive cross section. We use the recent results on threshold N3LO corrections in QCD for Drell-Yan production and three loop QCD cor- rections to Higgs form factor with bottom anti-bottom quark to achieve this task. This is the first step towards the evaluation of complete N3LO result. We have numerically demonstrated the importance of such corrections at the LHC.

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JHEP 1410 (2014) 139

Taushif Ahmed, M. K. Mandal, Narayan Rana and V. Ravindran

We present threshold enhanced N$$^3$$LO QCD corrections to inclusive Higgs production through bottom anti-bottom annihilation at hadron colliders using threshold resummed cross section. The resummed cross section is obtained using factorization prop- erties and Sudakov resummation of the inclusive cross section. We use the recent results on threshold N3LO corrections in QCD for Drell-Yan production and three loop QCD cor- rections to Higgs form factor with bottom anti-bottom quark to achieve this task. This is the first step towards the evaluation of complete N3LO result. We have numerically demonstrated the importance of such corrections at the LHC.

Exclusive observables involving Higgs boson in association with jets are often well suited to study the Higgs boson properties. They are rates involving cuts on the final state jets or differential distributions of rapidity, transverse momentum of the observed Higgs boson. While they get dominant contributions from gluon initiated partonic subpro- cesses, it is important to include the subdominant ones coming from other channels. In this article, we study one such channel namely the Higgs production in association with a jet in bottom anti-bottom annihilation process. We compute relevant amplitude H → b+b+g up to two loop level in QCD where Higgs couples to bottom quark through Yukawa coupling. We use projection operators to obtain the coefficients for each tensorial structure appearing in this process. We have demonstrated that the renormalized amplitudes do have the right infrared structure predicted by the QCD factorization in dimensional regularization. The finite parts of the one and two loop amplitudes are presented after subtracting the infrared poles using Catani’s subtraction operators.

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JHEP 1408 (2014) 075

Taushif Ahmed, Maguni Mahakhud, Prakash Mathews, Narayan Rana and V. Ravindran

We present the threshold N3LO perturbative QCD corrections to the rapidity distributions of dileptons in the Drell-Yan process and Higgs boson in gluon fusion. Sudakov resummation of QCD amplitudes, renormalization group invariance, and the mass factorization theorem provide useful guidelines to obtain them in an elegant manner. We use various state of the art three loop results that have been recently available to obtain these distributions. For the Higgs boson, we demonstrate numerically the importance of these corrections at the LHC.

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Phys.Rev.Lett. 113 (2014) 212003

Taushif Ahmed, M. K. Mandal, Narayan Rana and V. Ravindran

The recent computation on the full threshold contributions to Higgs boson production at next- to-next-to-next-to-leading order (N$$^3$$LO) in QCD contains valuable information on the soft gluons resulting from virtual and real emission partonic subprocesses. We use those from the real emissions to obtain the corresponding soft gluon contributions to Drell-Yan production and determine the missing $$\delta$$(1 − z) part of the N$$^3$$LO. The numerical impact of threshold effects demonstrates the importance of our results in the precision study with the Drell-Yan process at the LHC.

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Phys.Rev.Lett. 113 (2014) no.11, 112002

Taushif Ahmed, Maguni Mahakhud, Narayan Rana and V. Ravindran

We present the third order virtual QCD corrections to the process h $$\rightarrow$$ g+g+g due to interference of born and two-loop amplitudes, where h is a massive spin-2 particle and g is the gluon. We assume that the SM fields couple to h through the SM energy momentum tensor. Our result constitutes one of the ingredients to full NNLO QCD contribution to production of a massive spin-2 particle along with a jet in the scattering process at the LHC. In particular, this massive spin-2 could be a KK mode of a ADD graviton in large extra dimensional model or a RS KK mode in warped extra dimensional model or a generic massive spin-2. In addition, it provides an opportunity to study the ultraviolet and infrared structures of QCD amplitudes involving tensorial coupling resulting from energy momentum operator. Using dimensional regularization, we find that infrared poles of this amplitude are in agreement with the proposal by Catani confirming the factorization property of QCD amplitudes with tensorial insertion.

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JHEP 1405 (2014) 107

Taushif Ahmed, Maguni Mahakhud, Prakash Mathews, Narayan Rana and V. Ravindran

#### Conference Proceedings

We present a detailed study on the infrared structure of N = 4 SYM and its connection to QCD. Calculation of collinear splitting functions helps to understand the structure and thus one can get infrared safe cross sections. We also demonstrate the factorization property that soft plus virtual part of the cross section satisfies and through factorization, we calculate soft distribution function up to third order in perturbation theory. We show that the soft distribution function is process independent that includes operators as well as external legs. In addition to this we compare our findings against the known results in QCD through principle of maximum transcendentality (PMT). We extend our analysis further for the case of three-point form factors involving stress tensor and find that it violates the PMT while comparing with the corresponding quantity in the standard model, observed for the first time at the level of form factor.

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Taushif Ahmed, Pulak Banerjee, Amlan Chakraborty, Prasanna K. Dhani, V. Ravindran and Satyajit Seth

14th International Symposium on Radiative Corrections (RADCOR2019), Palais des Papes, Avignon, France

We present the two-loop QCD corrections to the amplitude of the Higgs production associated with a Z boson via the bottom quark-antiquark annihilation channel with a non-vanishing bottom- quark Yukawa coupling. The computation is performed by projecting the D-dimensional scattering amplitude directly onto a set of Lorentz structures related to the linear polarisation states of the Z boson. We cross-check the finite remainders through a computation based on conventional form factor decomposition. We show that for physical observables, an ultimate D-dimensional form factor decomposition of amplitudes is not necessary which has a huge potential to simplify a multiloop computation. We compute numerically the resulting cross sections under the soft- virtual approximation to NNLO and find it three orders of magnitude smaller than that of the s-channel.

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Taushif Ahmed, A. H. Ajjath, Long Chen, Prasanna K. Dhani, Pooja Mukherjee and V. Ravindran

14th International Symposium on Radiative Corrections (RADCOR2019), Palais des Papes, Avignon, France

In the limit of large top quark mass, using an effective Lagrangian that only admits light degrees of freedom we compute the three-loop QCD corrections to the quark and gluon form factors of a pseudo-scalar Higgs boson. Using the universal infrared factorisation properties, the three-loop operator mixing and finite operator renormalisation are re-derived thereby confirming the results in the operator product expansion. We find that our findings are consistent with the anomaly equation. We derive the hard matching coefficient in soft-collinear effective theory in order to perform the matching of the SCET-based resummation onto the full QCD calculation up to the three loop order.

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PoS LL2016 (2016) 026

Taushif Ahmed, Thomas Gehrmann, Prakash Mathews, Narayan Rana and V. Ravindran

Loops and Legs in Quantum Field Theory - LL 2016, Leipzig, Germany

Career track

## Employment & Education

• Oct 2020 - Present
• INFN Torino, Turin, Italy

• Oct 2018 - Sept 2020
• Max-Planck-Institute for Physics (Werner Heiserberg Institute), Munich, Germany

Group of Johannes Henn

• Oct 2017 - Sept 2018
• Johannes Guttenberg University of Mainz, Germany

Group of Johannes Henn

• Oct 2016 - Sept 2017
• Karlsruhe Institute of Technology, Germany

Group of Matthias Steinhauser (and Johannes Henn from Mainz)

• Mar 2015 - Sep 2016
• The Institute of Mathematical Sciences, Chennai, India

• Oct 2013 - Feb 2015
• Harish-Chandra Research Institute, Allahabad, India

Doctoral Thesis

• QCD Radiative Corrections to Higgs Physics

Oct 2010 - Sept 2013

Master Thesis

• Spin Coherent State through Path Integral & Semi-Classical Physics
• Unruh Effect
• Intrinsic Parity of Neutral Pion
• Dirac and Majorana Neutrino
• The Anti-proton
• Classical Analogy of Fano Interference

Aug 2007 - Jul 2010
St. Xavier's College, Kolkata, India

Bachelor Thesis

• General Relativistic Spin Precision of Binary Pulsars

Aug 2001 - Jul 2007
Al-Ameen Mission, Howrah, India

Awards & Fellowships

## Junior Research Fellowship Offer for Integrated PhD (MSc + PhD) from2010

• Harish-Chandra Research Institute, India
• The Institute of Mathematical Sciences, India
• Indian Institute of Science, India
• The Inter-University Centre for Astronomy and Astrophysics, India
• National Centre for Radio Astrophysics, India
• Indian Institute of Astrophysics, India
• S. N. Bose National Centre For Basic Sciences, India

## Joint Entrance Screening Test, All India Entrance Examination for PhD at Research Institutes in India 2010

All India score 97.85 percentile

## JAM, Entrance Examination for MSc at Indian Institute of Technology, India2010

All India rank 67

## National Graduate Physics Examination, India2009

One of the National Toppers

## National Merit Scholarship, Government of India2005

Not so useful things!

## Miscellaneous

Seminars (Selected)

Teaching Assistant in Advanced QFT, Spring 2015 and 2016

Lecture Notes

Useful webpages

Get in Touch

## Contact

Via Pietro Giuria 1, 10125 Torino, Germany