289 citations · 3k across the 114 of their papers we have counts for
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Polarised and Unpolarised Charmonium Production at Higher Orders in v
Sourendu Gupta, Prakash Mathews
We study the unpolarised and polarised hadro-production of charmonium in non-relativistic QCD (NRQCD) at low transverse momentum, including sufficiently higher orders in the relati…
Single Polarisation Asymmetries for Quarkonia in Non-relativistic QCD
Sourendu Gupta
We find that single spin asymmetries in NRQCD are non-vanishing in general. They are proportional to the imaginary parts of some non-perturbative matrix elements. With statistics o…
Chi_1 and Polarisation Asymmetries for Quarkonia at High Orders in Non-relativistic QCD
Sourendu Gupta, Prakash Mathews
We study doubly polarised asymmetries of c-cbar and b-bbar mesons in hadro- and photo-production at low transverse momentum in non-relativistic QCD to high orders in the relative v…
Higher Orders in the Colour-Octet Model of J/ψProduction
Sourendu Gupta, Prakash Mathews
We study the hadro- and photo-production of and mesons at low transverse momentum to high orders in the relative velocity of the pair, v, in non-relativistic QC…
Is there Anomalous J/psi Suppression in Present-day Heavy-ion Collisions?
R. V. Gavai, Sourendu Gupta
We re-analyse the data on J/psi cross sections for proton-nucleus and nucleus-nucleus collisions obtained by the CERN experiments NA38, NA51 and NA50. Our systematic analysis of er…
Thermal Effects on Two-photon Decays of Pseudo-scalars
Sourendu Gupta, S. N. Nayak
We study the effect of finite temperatures and Fermion density on the effective pseudo-scalar-photon vertex induced by the triangle diagram. The manifestly covariant calculations s…