Scientific Commons: S. Klein

In the asymptotic limit $Q^2 \gg m^2$, the heavy flavor Wilson coefficients for deep--inelastic scattering factorize into the massless Wilson coefficients and the universal heavy flavor operator...

Higher order corrections to heavy flavour production in deep inelastic scattering (2008)

Bierenbaum, I., Blümlein, J., Klein, S.

In the asymptotic limit $Q^2 \gg m^2$, the non-power corrections to the heavy flavour Wilson coefficients in deep--inelastic scattering are given in terms of massless Wilson coeffcients and massive...

Crystal-field level inversion in lightly Mn-doped Sr3Ru2O7 (2008)

Hossain, M. A., Hu, Z., Haverkort, M. W., Burnus, T., Chang, C. F., Klein, S., ...

Sr3(Ru1-xMnx)2O7, in which 4d-Ru is substituted by the more localized 3d-Mn, is studied by x-ray dichroism and spin-resolved density functional theory. We find that Mn impurities do not exhibit the...

Comparative investigation of nucleation undercooling of Zirconium using the electromagnetic and electrostatic levitation technique (2008)

Klein, S., Herlach, D.M.

Heavy Flavour Production in Deep--Inelastic Scattering - Two--Loop Massive Operator Matrix Elements and Beyond (2007)

Bierenbaum, I., Blümlein, J., Klein, S.

We calculate the O($\eps$)--term of the two--loop massive operator matrix elements for twist 2--operators, which contribute to the heavy flavour Wilson coefficients in unpolarized deep--inelastic...

Determining the crystal-field ground state in rare earth Heavy Fermion materials using soft-x-ray absorption spectroscopy (2007)

Hansmann, P., Severing, A., Hu, Z., Haverkort, M. W., Chang, C. F., Klein, S., ...

We infer that soft-x-ray absorption spectroscopy is a versatile method for the determination of the crystal-field ground state symmetry of rare earth Heavy Fermion systems, complementing neutron...

Difference Equations in Massive Higher Order Calculations (2007)

Bierenbaum, I., Blümlein, J., Klein, S., Schneider, C.

The calculation of massive 2--loop operator matrix elements, required for the higher order Wilson coefficients for heavy flavor production in deeply inelastic scattering, leads to new types of...

Two-Loop Massive Operator Matrix Elements for Polarized and Unpolarized Deep-Inelastic Scattering (2007)

Bierenbaum, I., Blümlein, J., Klein, S.

The $O(\alpha_s^2)$ massive operator matrix elements for unpolarized and polarized heavy flavor production at asymptotic values $Q^2 >> m^2$ are calculated in Mellin space without applying the...

Calculation of Massive 2-Loop Operator Matrix Elements with Outer Gluon Lines (2007)

Bierenbaum, I., Blümlein, J., Klein, S.

Massive on-shell operator matrix elements and self-energy diagrams with outer gluon lines are calculated analytically at $O(\alpha_s^2)$, using Mellin-Barnes integrals and representations through...

Progress Towards a Micromachined Heat Exchanger for a Cryosurgical Probe (2007)

Hoch, D.W., Nellis, Gregory F., Schuetter, S., Klein, S., Zhu, W., Gianchandani, Yogesh B.

Temperature Control Strategies in a Rectified Continuous Flow Loop for the Thermal Management of Large Structures (2007)

Skye, H., Hoch, D.W., Klein, S., Nellis, Gregory F., Maddocks, J., Roberts, T.

Heavy flavour production in deep-inelastic scattering - Two-loop massive operator matrix elements and beyond. (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Journal article

Two loop massive operator matrix elements and unpolarized heavy flavor production at asymptotic values Q2 >> m2. (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Journal article

Two-loop massive operator matrix elements for polarized and unpolarized deep-inelastic scattering. 2007-04-23 - 2007-04-27 (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Contribution to a conf. proceeding (book/online)

Calculating massive two-loop two-point functions and two-loop massive operator matrix elements with Mellin-Barnes integrals. 2006-07-05 - 2006-07-05 (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Contribution to a conf. proceeding (book/online)

Difference equations in massive higher order calculations. 2007-04-23 - 2007-04-27 (2007)

I. Bierenbaum, J. Blümlein, S. Klein, C. Schneider

Contribution to a conf. proceeding (book/online)

Heavy flavour production in deep-inelastic scattering: Two-loop massive operator matrix elements and beyond. 2007-09-05 - 2007-09-11 (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Contribution to a conf. proceeding (journal)

Difference equations in massive higher order calculations. 2007-04-23 - 2007-04-27 (2007)

I. Bierenbaum, J. Blümlein, S. Klein, C. Schneider

Contribution to a conf. proceeding (book/online)

Heavy flavour production in deep-inelastic scattering: Two-loop massive operator matrix elements and beyond. 2007-09-05 - 2007-09-11 (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Contribution to a conf. proceeding (journal)

Calculation of massive 2-loop operator matrix elements with outer gluon lines. (2007)

I. Bierenbaum, J. Blümlein, S. Klein

Journal article

Two-loop massive operator matrix elements for polarized and unpolarized deep-inelastic scattering 2007-04-16 - 2007-04-20 (2007)

I. Bierenbaum, J. Blümlein, S. Klein, G. Grindhammer, K. Sachs (ed.)

Contribution to a conf. proceeding (book/online)

Structural relations between harmonic sums up to w=6. 2007-04-16 - 2007-04-20 (2007)

J. Blümlein, S. Klein, G. Grindhammer, K. Sachs (ed.)

Contribution to a conf. proceeding (book/online)

The Longitudinal Heavy Quark Structure Function F_{L}^{Q\bar{Q}} in the Region Q^2 \gg m^2 at O(\alpha_s^3) (2006)

Blümlein, J., De Freitas, A., Van Neerven, W. L., Klein, S.

The logarithmic and constant contributions to the Wilson coefficient of the longitudinal heavy quark structure function to $O(\alpha_s^3)$ are calculated using mass factorization techniques in Mellin...

Evaluating Two-Loop massive Operator Matrix Elements with Mellin-Barnes Integrals (2006)

Bierenbaum, I., Blümlein, J., Klein, S.

We calculate massive 5-propagator 2-loop integrals for operator matrix elements in the light-cone expansion, using Mellin-Barnes techniques and representations through generalized hypergeometric...

Measurement of Ion Beam Losses due to Bound-Free Pair Production in RHIC (2006)

Bruce, R, Drees, A, Fischer, W, Gilardoni, S S, Klein, S, ...

When the LHC operates as a Pb82+ ion collider, losses of Pb81+ ions, created through Bound-free Pair Production at the collision point, and localized in cold magnets, are expected to be a major...

The challenge of preparation for a chemical, biological, radiological or nuclear terrorist attack (2006)

Alexander, DA, Klein, S

Imaging by second-harmonic generation and fluorescence for the development of optical devices based on functionalized organnic materials (2006)

Barsella, A., Gindre, D., Klein, S., Taupier, G., Vola, J.P., Dorkenoo, K.D.

Organic micro components for optical integrated devices (2006)

Dorkenoo, K.D., Klein, S., Barsella, A., Bombenger, J.P., Mager, L., Gindre, D., ...

Functionalized photopolymers for integrated optical components (2006)

Fort, A., Klein, S., Bombenger, J.P., Dorkenoo, K.D., Mager, L., Barsella, A., ...

Bonding at copper-alumina interfaces established by different surface treatments: a critical review (2006)

Scheu, C., Gao, M., Oh, S. H., Dehm, G., Klein, S., Tomsia, A. P., ...

Micromachined heat exchanger for a cryosurgical probe (2006)

Zhu, Weibin, Gianchandani, Y., Nellis, G., Klein, S.

This paper describes a lithography-based microfabrication process developed for a recuperative heat exchanger intended for use in a cryosurgical probe. The probe, which uses the Joule-Thomson (JT)...

Bonding at copper-alumina interfaces established by different surface treatments: a critical review (2006)

Scheu, C., Gao, M., Oh, S. H., Dehm, G., Klein, S., Tomsia, A. P., ...

Micromachined heat exchanger for a cryosurgical probe (2006)

Zhu, Weibin, Gianchandani, Y., Nellis, G., Klein, S.

This paper describes a lithography-based microfabrication process developed for a recuperative heat exchanger intended for use in a cryosurgical probe. The probe, which uses the Joule-Thomson (JT)...

Bonding at copper-alumina interfaces established by different surface treatments: a critical review (2006)

Scheu, C., Gao, M., Oh, S. H., Dehm, G., Klein, S., Tomsia, A. P., ...

Evaluating Two-Loop massive Operator Matrix Elements with Mellin-Barnes Integrals. 2006-04-23 - 2006-04-28 (2006)

I. Bierenbaum, J. Blümlein, S. Klein

Contribution to a conf. proceeding (journal)

Introduction to the SALSA, a saltdome shower array as a GZK neutrino observatory. 2005-05-17 - 2005-05-19 (2006)

D. Saltzberg, K. Arisaka, R. Bain, S. Barwick, ...

Contribution to a conf. proceeding (journal)

Random laser action in organic film during the photopolymerization process (2005)

Klein, S., Cregut, O., Gindre, D., Boeglin, A., Dorkenoo, K.D.

One-Step wavaguide and optical circuit writing in phopolymerizable materials processed by two-photon absorption (2005)

Klein, S., Barsella, A., Leblond, H., Bulou, H., Fort, A., Andraud, C., ...

Microcrystalline silicon solar cells deposited at high rates (2005)

Mai, Y., Klein, S., Carius, R., Wolff, J., Lambetz, A., Finger, F., ...

This version is available at the following Publisher URL: http://jap.aip.org

Deposition of microcrystalline silicon prepared by hot-wire chemical-vapor deposition: The influence of the deposition parameters on the material properties and solar cell performance (2005)

Klein, S., Finger, F., Carius, R., Stutzmann, M.

This version is available at the following Publisher URL: http://jap.aip.org

Open circuit voltage improvement of high-deposition-rate microcrystalline silicon solar cells by hot wire interface layer (2005)

Mai, Y., Klein, S., Carius, R., Stiebig, H., Geng, X., Finger, F.

This version is available at the following Publisher URL: http://apl.aip.org

Photoluminescence and solar cell properties in µc-Si:H (2005)

Carius, R., Merdzhanova, T., Finger, F., Klein, S.

Instability phenomena in microcrystalline silicon films (2005)

Finger, F., Carius, R., Dylla, T., Klein, S., Okur, S., Günes, M.

Impact of instability in µc-Si:H i-layers on the performance of solar cells (2005)

Sendova-Vassileva, M., Finger, F., Klein, S., Lambertz, A.

Band tail states in microcrystalline silicon solar cells probed by photoluminescence and open circuit voltage (2005)

Carius, R., Merdzhanova, T., Klein, S., Finger, F.

A comparison of model calculations and experimental results on photoluminescence energy and open circuit voltage of µc-Si:H solar cells (2005)

Merdzhanova, T., Carius, R., Klein, S., Finger, F., Dimova-Malinovska, D.

Method for measuring centroid algorithm accuracy (2004)

Klein, S., Liewer, K.

This paper will describe such a method for measuring the accuracy of centroid algorithms using a relatively inexpensive setup consisting of a white light source, lenses, a CCD camea, an...

Structure adjustment during high-deposition-rate growth of microcrystalline silicon solar cells (2004)

Mai, Y., Klein, S., Geng, X., Finger, F.

This version is available at the following Publisher URL: http://apl.aip.org

Ankle-arm index versus angiography for the preassessment of the fibula free flap (2003)

Klein, S., Hage, J.J., Lagerweij, M.

Verdwenen prothesen. Borstimplantaties worden onvoldoende geregistreerd (2003)

Klein, S.

A Comparison of Model Simulated Trends in Stratospheric Temperatures (2003)

Shine, K.P., Bourqui, M.S., Forster, P.M. De, Hare, S.H.E., Langematz, U., Braesicke, P., ...

Chemical reactions and morphological stability at the Cu/Al2O3 interface (2002)

Scheu,C., Klein,S., Tomsia,A. P., Rühle,M.

The high-energy gamma-ray fluence and energy spectrum of GRB 970417a from observations with Milagrito (2002)

Atkins, R., Benbow, W., Berley, D., Chen, M. L., Coyne, D. G., Dingus, B. L., ...

Evidence of TeV emission from GRB970417a has been previously reported using data from the Milagrito detector. Constraints on the TeV fluence and the energy spectrum are now derived using additional...

Fingerprint Image Segmentation Based on Hidden Markov Models (2002)

Klein, S., Bazen, A.M., Veldhuis, R.N.J.

An important step in fingerprint recognition is segmentation. During segmentation the fingerprint image is decomposed into foreground, background and low-quality regions. The foreground is used in...

Chemical reactions and morphological stability at the Cu/Al2O3 interface (2002)

Scheu, C., Klein, S., Tomsia, A. P., Rühle, M.

Ultra-peripheral collisions of relativistic heavy ions (2001)

Klein, S., Collaboration, For The STAR

We report the first observation of exclusive $\rho$ production in ultra-peripheral collisions at RHIC. The $\rho$ are produced electromagnetically at large impact parameters where no hadronic...

Microstructure and modifications of Cu/Al2O3 interfaces (2001)

Scheu,C., Stein,W., Klein,S., Wagner,T., Tomsia,A. P., Rühle,M.

Microstructure and modifications of Cu/Al2O3 interfaces (2001)

Scheu,C., Stein,W., Klein,S., Wagner,T., Tomsia,A. P., Rühle,M.

Ultra-peripheral collisions of relativistic heavy ions (2001)

Klein, S., STAR Collaboration

Gesture plays a role in thinking for speaking. (2001)

Alibali,M., Kita,S., Bigelow,L., Wolfman,C., Klein,S.

Interfacial chemistry and structure of Cu/al2O3 (2001)

Scheu,C., Stein,W., Klein,S., Tomsia,A. P., Rühle,M.

Festkörperreaktionen an diffusionsverschweißten Cu-Al2O3-Grenzflächen. Solid State Reactions at Diffusion Bonded Cu-Al2O3-Interfaces (2001)

Klein, S.

Microstructure and modifications of Cu/Al2O3 interfaces (2001)

Scheu, C., Stein, W., Klein, S., Wagner, T., Tomsia, A. P., Rühle, M.

Microstructure and modifications of Cu/Al2O3 interfaces (2001)

Scheu, C., Stein, W., Klein, S., Wagner, T., Tomsia, A. P., Rühle, M.

’Separating the wheat from the chaff‘: A novel food processing technique in captive gorillas. (2001)

Klein, S., Tomasello, Michael

Gesture plays a role in thinking for speaking. (2001)

Alibali, M., Kita, S., Bigelow, L., Wolfman, C., Klein, S.

Interfacial chemistry and structure of Cu/al2O3 (2001)

Scheu, C., Stein, W., Klein, S., Tomsia, A. P., Rühle, M.

An Intercomparison of Single-Column Model Simulations of Summertime Midlatitude Continental Convection (2000)

S. J. Ghan, D. G. Cripe, R. T. Cederwall, S. C. Xie, J. J. Yio, ...

Introduction The ultimate goal of the Atmospheric Radiation Measurement (ARM) Program is the improvement of parameterizations of clouds and radiation used in climate models. This goal is being...

The STAR time projection chamber (1999)

Ackermann, K.H., Adams, N., Adler, C., Aluyshin, M., Ananeva, M.A., Anderson, M., ...

The STAR time projection chamber (1999)

Ackermann, K.H., Adams, N., Adler, C., Aluyshin, M., Ananeva, M.A., Anderson, M., ...

Two-photon physics at RHIC: separating signals from backgrounds (1998)

Nystrand, J, Klein, S

This presentation will show the feasibility of studying two-photon interactions in the STAR experiment at RHIC. Signals, detection efficiencies, backgrounds, triggering and analysis techniques will...

Testing the Markov condition in ion channel recordings (1997)

Timmer, J., Klein, S.

A statistical test is presented to decide whether data are adequately described by probabilistic functions of finite state Markov chains (''hidden Markov models'') as applied in the analysis of ion...

Lipolytic sensitivity to catecholamines in patients with human immunodeficiency virus infection (1997)

Heijligenberg, R., Romijn, J.A., Klein, S., Endert, E., Sauerwein, H.P.

STAR Controls System (1996)

J. Meier, R. Burke, M. Cherney, P. Colarco, J. Chrin, J. Gross, ...

The Slow Controls System for the Solenoidal Tracker At RHIC (STAR) is presented. The application of the Experimental Physics and Industrial Control System (EPICS) to this system is discussed. A...

Homogeneity of Titania-Silica Mixed Oxides : Detailed UV-DRS-studies as function of titania-content (1996)

Weckhuysen, B.M., Klein, S., Martens, J.A., Maier, W.F., Jacobs, P.A.

Two photon physics at RHIC (1995)

Klein, S

Protozoa as Model System for the Study of Cellular Responses to Altered Gravity Conditions (1994)

Hemmersbach-Krause, R., Briegleb, W., Klein, S. (2), Mulisch, M. (2)

Abstract (1992)

Strohscheer, I., Kleinert, R., Westphal, C., Schüller, J., Werner, K., Anders, O., ...

Peer Reviewed

S. Klein

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