Asis Chaudhuri
I am a theoretical physicist, recently superannuated from VECC (Variable Energy Cyclotron Centre), Kolkata, India. Presently, I am continuing at VECC as a DST Scientist. I had my initial training at the prestigious Training School of Bhabha Atomic Research Centre, Mumbai. I obtained my doctoral degree from the University of Calcutta. My primary research interest is High Energy Nuclear Physics, in particular, physics of Quark Gluon Plasma. I do have a healthy interest in other areas of physics, e.g. chaos, early universe, physics beyond standard model etc. and occasionally contributed scientifically in those areas. I have authored/co-authored approximately 100 research articles and an advanced textbook,
"A short course on Relativistic Heavy Ion Collisions"
Institute of Physics, London.
I am now working on another book on Relativistic Hydrodynamics.
Being a practitioner of science, it pained me to find our society getting more and more apathetic to science and scientific thinking. Sir Oliver Lodge once wrote about the attitude of common man to science; “A common man won’t cross the street to learn about science.” The attitude is not changed, if not more apathetic now. Yet, I believe that science is the key to human freedom, freedom from religious bondage, freedom from superstition, freedom from poverty, freedom from hunger. In my own humble way, by various writings, I am trying to change the situation.
I have authored a popular science book,
"Cooking Cosmos; unraveling mysteries of the Universe."
World Scientific, Singapore published the book.
I also maintain a website,
https://asischaudhuri.wordpress.com
where some of my popular science articles can be found. I can be reached at,
[email protected]
"A short course on Relativistic Heavy Ion Collisions"
Institute of Physics, London.
I am now working on another book on Relativistic Hydrodynamics.
Being a practitioner of science, it pained me to find our society getting more and more apathetic to science and scientific thinking. Sir Oliver Lodge once wrote about the attitude of common man to science; “A common man won’t cross the street to learn about science.” The attitude is not changed, if not more apathetic now. Yet, I believe that science is the key to human freedom, freedom from religious bondage, freedom from superstition, freedom from poverty, freedom from hunger. In my own humble way, by various writings, I am trying to change the situation.
I have authored a popular science book,
"Cooking Cosmos; unraveling mysteries of the Universe."
World Scientific, Singapore published the book.
I also maintain a website,
https://asischaudhuri.wordpress.com
where some of my popular science articles can be found. I can be reached at,
[email protected]
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Papers by Asis Chaudhuri
A short course on Relativistic Heavy Ion Collisions,
Institute of Physics Publishing, London.
is assumed to be a two step process, (i) formation of
c
c¯ pair, which is accurately calculable in QCD
and (ii) formation of J/ψ meson from the
c
c¯ pair, which can be conveniently parameterized. In
a pA/AA collision, the as the
c
c¯ pair pass through the nuclear medium, it gain relative squar
e
momentum at the rate of
ε
2 per unit path length. As a result, some of the
c
c¯ pairs can gain
enough momentum to cross the threshold to become an open charm meson, leading to suppression
in pA/AA collisions. The parameters of the model were fixed from experimental data on the total
J/ψ cross section as a function of effective nuclear length. The model without any free parameter,
give excellent description of NA50 data on
E
T dependence of J/ψ to Drell-Yan ratio. The model
was applied to predict the
E
T dependence of J/ψ at RHIC energy. Much larger suppression of J/ψ
,
in agreement with other model calculations are predicted.
(QGP) fluid created in a heavy-ion collision. In jet quenching, a hard QCD parton, before fragmenting
into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed
production of highp
T hadrons. Assuming that the deposited energy quickly thermalizes, we simulate
the subsequent hydrodynamic evolution of the QGP fluid. For partons moving at supersonic
speed,
v
p > c
s, and sufficiently large energy loss, a shock wave forms leading to conical flow [1]. The
PHENIX Collaboration recently suggested that observed structures in the azimuthal angle distribution
[2] might be caused by conical flow. We show here that, for phenomenologically acceptable
values of parton energy loss, conical flow effects are too weak to explain these structures.
Drafts by Asis Chaudhuri
A short course on Relativistic Heavy Ion Collisions,
Institute of Physics Publishing, London.
is assumed to be a two step process, (i) formation of
c
c¯ pair, which is accurately calculable in QCD
and (ii) formation of J/ψ meson from the
c
c¯ pair, which can be conveniently parameterized. In
a pA/AA collision, the as the
c
c¯ pair pass through the nuclear medium, it gain relative squar
e
momentum at the rate of
ε
2 per unit path length. As a result, some of the
c
c¯ pairs can gain
enough momentum to cross the threshold to become an open charm meson, leading to suppression
in pA/AA collisions. The parameters of the model were fixed from experimental data on the total
J/ψ cross section as a function of effective nuclear length. The model without any free parameter,
give excellent description of NA50 data on
E
T dependence of J/ψ to Drell-Yan ratio. The model
was applied to predict the
E
T dependence of J/ψ at RHIC energy. Much larger suppression of J/ψ
,
in agreement with other model calculations are predicted.
(QGP) fluid created in a heavy-ion collision. In jet quenching, a hard QCD parton, before fragmenting
into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed
production of highp
T hadrons. Assuming that the deposited energy quickly thermalizes, we simulate
the subsequent hydrodynamic evolution of the QGP fluid. For partons moving at supersonic
speed,
v
p > c
s, and sufficiently large energy loss, a shock wave forms leading to conical flow [1]. The
PHENIX Collaboration recently suggested that observed structures in the azimuthal angle distribution
[2] might be caused by conical flow. We show here that, for phenomenologically acceptable
values of parton energy loss, conical flow effects are too weak to explain these structures.
This book takes you through the intellectual journey of mankind, unraveling the mysteries of the Cosmos. Starting from Aristotle's Earth-centered Universe, it will take you step by step to the Copernican Sun-centered Universe, to Hubble's expanding Universe, to the Big Bang, to the currently accepted accelerating Universe. In the process, the book explores the origin of space-time, black hole, black hole radiation, dark matter, dark energy, quantum gravity, string theory, all in terms comprehensible to general audiences.
[Cooking Cosmos: Unraveling the mysteries of the Universe, World Scientific, 2016]