BERND SURROW, Assistant Professor of Physics
Research Interests
Bernd Surrow's research is focused
on investigating the structure of the proton and its underlying
dynamics.
Lepton-nucleon scattering experiments
have played an important role in our understanding of the structure
of the proton in terms of its underlying constituent momentum and
spin distribution functions. Those measurements contributed to the
test of the field theory among quarks and gluons know as Quantum
Chromodynamics (QCD). The first electron-proton collider, HERA at
DESY, has allowed researchers to explore the structure of the proton
in a new kinematic region compared to previous fixed target experiments,
in particular the observation of the steep rise of the proton structure
function F2 at low Bjorken x.
Surrow was deeply involved in the
investigation of the transition region of non-perturbative ("soft")
and perturbative ("hard") QCD. Together with Dieter Schildknecht,
he formulated the GVD/CDP (Generalized Vector-Dominance/Color-Dipole
Picture) model, which led to the observation of low x scaling in
γ*p collisions.
Similar to the unpolarized case, several
polarized fixed-target experiments have been conducted in the past
to gain a deeper understanding of the spin structure of the proton.
Those experimental efforts have been restricted to large values
of Bjorken x. The role of the gluons to make up for the missing
proton spin is currently only poorly constrained from scaling violations
in fixed target experiments. A need for a new generation of experiments
to explore the spin structure of the proton is clearly apparent.
The spin physics program at RHIC at BNL focuses on the collision
of polarized protons to gain a deeper understanding of the spin
structure of the proton in a new, previously unexplored territory.
Exploring the structure of the proton
and atomic nuclei at a future electron-ion collider facility at
BNL would allow researchers to probe QCD in a manner previously
not possible such as the polarized quark and gluon distributions
at low x and in particular possible saturation phenomenon at high
patron density.
Bernd Surrow is currently working
as a member of the Hadronic Physics Group on the RHIC Spin program
within the STAR experiment and on a future electron-ion collider
facility at BNL.
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Biographical Sketch
Bernd Surrow was born in Germany. In 1989, at the beginning of
his university studies at the Department of Physics at the University
of Wurzburg, he was awarded a scholarship by the German National
Academic Foundation. He received his Pre-Diploma in Physics in 1991.
In 1992, Surrow joined the Department of Physics at the State University
of New York at Stony Brook to continue his graduate work. He conducted
his Masters Thesis research work within the Relativistic-Heavy Ion
Group at Stony Brook with the design and test of a RICH detector
for the PHENIX experiment at RHIC. Surrow received a Masters Degree
in Physics in 1993, which was subsequently granted as a German Diploma
degree.
In 1994, Surrow joined the ZEUS experiment at DESY where he conducted
his Ph.D. thesis research on the measurement of the proton structure
function F2 at low Q2 and very low x. His
work was supported by a DESY Ph.D. scholarship. Surrow received
a Ph.D. in Physics in 1998 by the University of Hamburg and was
awarded the DESY Ph.D. Thesis prize and the Ph.D. Thesis prize by
the Department of Physics at the University of Hamburg.
From 1998 until 2000, Surrow worked as a CERN Fellow for the CMS
and OPAL Collaboration where he served on the OPAL run coordination
team and as convenor of the OPAL Two-Photon
physics working group. He was subsequently appointed a permanent
staff member at DESY before joining the Physics Department at BNL
as a Goldhaber Fellow. Surrow will join the MIT faculty in
January 2004 as an Assistant Professor of Physics, starting a new
involvement within the Medium-Energy Group at the RHIC Spin
Program within the STAR experiment at BNL and towards a future electron-ion
collider at BNL.
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Selected Publications
B. Surrow, "Measurement of the Proton Structure Function F2
at low Q2 and Very Low x with the ZEUS Beam Pipe Calorimeter
at HERA," Eur. Phys. J. direct C1 (1999) 2.
ZEUS Collaboration (J. Breitweg et al.), "ZEUS Results on
the Measurement and Phenomenology of F2 at low x and
and low Q2," Eur. Phys. J. C7 (1999) 609.
ZEUS Collaboration (J. Breitweg et al.), "Measurement of the
Proton Structure Function F2 and σtot(γ*p)
at low Q2 and very low x," Phys. Lett.
B 407 (1997) 432.
G. Cvetic, D. Schildknecht, B. Surrow and M. Tentykov, "The
Generalized Vector Dominance Color Dipole Picture of Deep Inelastic
Scattering at low x," Eur. Phys. J. C20 (2001) 77.
OPAL Collaboration (G. Abbiendi et al.), "Measurement of the
Hadronic Cross section for the scattering of two virtual photons
at LEP," Eur. Phys. J. C24 (2002) 17.
OPAL Collaboration (G. Abbiendi et al.), "Total Hadronic Cross-section
of Photon-Photon Interactions at LEP," Eur. Phys. J.
C14 (2000) 199.
CMS Tracker Collaboration (B. Surrow et al.), "Automated Silicon
Module Assembly for the CMS Silicon Tracker," Nucl. Instrum.
Meth. A 461 (2001) 251.
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