Charge shielding in the In-situ Storage Image Sensor for a vertex detector at the ILC (2009)
LCFI Collaboration, Zhang, Z, Stefanov, KD, Bailey, D, Banda, Y, Buttar, C, ...
J. Richardson, F. Kagawa, A. Nichols
Background: A number of policy documents suggest that health services should be taking climate change and sustainability seriously and recommendations have been made to mitigate and adapt to the...
Progress with vertex detector sensors for the International Linear Collider. (2007)
Worm, Steve, Banda , Y., Bowdery, Chris, Buttar, C., Clarke, P., Cussans, D., ...
In the past year, the Linear Collider Flavour Identification (LCFI) Collaboration has taken significant steps towards having a sensor suitable for use in the silicon vertex detector of the...
The optical links of the ATLAS SemiConductor tracker (2007)
Wilson, J. A., Abdesselam, A., Allport, P. P., Apsimon, R. J., Band, C., Barr, A. J., ...
28 pages, 17 figures.-- PACS nrs.: 42.88.+h, 04.40.Nr, 85.40, 85.60.-- ISI Article Identifier: 000253652000008.-- Open Access article at the publisher's site.
Firstly, I would like to thank my advisor, Dan Fisk, for his faithful support, encouragement, and for the Big Picture; also Wendy Rogers, for her guidance and attention to detail (an acquired skill...
Structure of the two-boundary XXZ model with non-diagonal boundary terms (2005)
We study the integrable XXZ model with general non-diagonal boundary terms at both ends. The Hamiltonian is considered in terms of a two boundary extension of the Temperley-Lieb algebra. We use a...
The Temperley-Lieb algebra and its generalizations in the Potts and XXZ models (2005)
We discuss generalizations of the Temperley-Lieb algebra in the Potts and XXZ models. These can be used to describe the addition of different types of integrable boundary terms. We use the...
Spectral equivalences and symmetry breaking in integrable SU_q(N) spin chains with boundaries (2005)
We consider the SU_q (N) invariant spin chain with diagonal and non-diagonal integrable boundary terms. The algebraic study of spin chains with different types of boundary terms is used to motivate a...
One-boundary Temperley-Lieb algebras in the XXZ and loop models (2004)
Nichols, A., Rittenberg, V., De Gier, J.
We give an exact spectral equivalence between the quantum group invariant XXZ chain with arbitrary left boundary term and the same XXZ chain with purely diagonal boundary terms. This equivalence, and...
The origin of multiplets of chiral fields in SU(2)_k WZNW at rational level (2003)
We study solutions of the Knizhnik-Zamolodchikov equation for discrete representations of SU(2)_k at rational level k+2=p/q using a regular basis in which the braid matrices are well defined for all...
Extended chiral algebras and the emergence of SU(2) quantum numbers in the Coulomb gas (2003)
We study a set of chiral symmetries contained in degenerate operators beyond the `minimal' sector of the c(p,q) models. For the operators h_{(2j+2)q-1,1}=h_{1,(2j+2)p-1} at conformal weight [...
New strings with world-sheet supersymmetry (2002)
Nichols, A., Manvelyan, R., Savvidy, G.
We suggest a new model of string theory with world-sheet supersymmetry. It possesses an additional global fermionic symmetry which is similar in many ways to BRST symmetry. The spectrum consists of...
SU(2)_k Logarithmic Conformal Field Theories (2002)
We analyse the SU(2)_k WZNW models beyond the integrable representations and in particular the case of SU(2)_0. We find that these are good examples of logarithmic conformal field theories as...
SU(2)_k Logarithmic Conformal Field Theories (2002)
We analyse the SU(2)_k WZNW models beyond the integrable representations and in particular the case of SU(2)_0. We find that these are good examples of logarithmic conformal field theories as...
Extended multiplet structure in Logarithmic Conformal Field Theories (2002)
We use the process of quantum hamiltonian reduction of SU(2)_k, at rational level k, to study explicitly the correlators of the h_{1,s} fields in the c_{p,q} models. We find from direct calculation...
Stress Energy Tensor in c=0 Logarithmic Conformal Field Theory (2002)
We discuss the partners of the stress energy tensor and their structure in Logarithmic conformal field theories. In particular we draw attention to the fundamental differences between theories with...
Extended chiral algebras in the SU(2)_0 WZNW model (2001)
We investigate the W-algebras generated by the integer dimension chiral primary operators of the SU(2)_0 WZNW model. These have a form almost identical to that found in the c=-2 model but have, in...
Stress Energy tensor in LCFT and the Logarithmic Sugawara construction (2001)
We discuss the partners of the stress energy tensor and their structure in Logarithmic conformal field theories. In particular we draw attention to the fundamental differences between theories with...
SU(2)_0 and OSp(2|2)_{-2} WZNW models : Two current algebras, one Logarithmic CFT (2001)
We show that the SU(2)_0 WZNW model has a hidden OSp(2|2)_{-2} symmetry. Both these theories are known to have logarithms in their correlation functions. We also show that, like OSp(2|2)_{-2}, the...
Logarithmic Currents in the SU(2)_0 WZNW model (2001)
We study four point correlation functions of the spin 1 operators in the SU(2)_0 WZNW model. The general solution which is everywhere single-valued has logarithmic terms and thus has a natural...
Logarithmic operators in the SL(2,R) WZNW model (2000)
We find some exact solutions of the Knizhnik-Zamolodchikov equation for the four point correlation functions that occur in the SL(2,R) WZNW model. They exhibit logarithmic behaviour in both the...
Hilton, D.R., Thirlwall, M.F., Taylor, R.N., Murton, B.J., Nichols, A.
To consider the 3He characteristics of plume-related lavas, we report a detailed survey of helium isotope (3He/4He) and concentration ([He]) variations along an 800-km transect of the Reykjanes Ridge...
Design and performance of the SLD vertex detector, a 307 Mpixel tracking system (1997)
Abe, K, Arodzero, A, Baltay, C, Brau, J E, Breidenbach, M, Burrows, P N, ...
Design and performance of the SLD vertex detector, a 307 Mpixel tracking system (1997)
Abe, K, Arodzero, A, Baltay, C, Brau, J E, Breidenbach, M, Burrows, P N, ...
Initial impact parameter resolution of the new SLD vertex detector (1997)
Sinev, NB, Brau, JE, Abe, K, Arodzero, AA, Baltay, C, Breidenbach, M, ...
ATLAS calorimeter performance (1996)
ATLAS Collaboration, Airapetian, A, Grabsky, V, Hakopian, H, Vartapetian, A, Fares, F, ...
ATLAS computing technical proposal (1996)
ATLAS Collaboration, Airapetian, A, Grabsky, V, Hakopian, H, Vartapetian, A, Fares, F, ...
ATLAS computing technical proposal (1996)
Airapetian, A., Grabsky, V., Hakopian, H., Vartapetian, A., Fares, F., Moorhead, G.F., ...
ATLAS calorimeter performance (1996)
Airapetian, A., Grabsky, V., Hakopian, H., Vartapetian, A., Fares, F., Moorhead, G.F., ...
ATLAS computing technical proposal (1996)
Airapetian, A., Grabsky, V., Hakopian, H., Vartapetian, A., Fares, F., Moorhead, G.F., ...
ATLAS calorimeter performance (1996)
Airapetian, A., Grabsky, V., Hakopian, H., Vartapetian, A., Fares, F., Moorhead, G.F., ...
Herrera, P L, Huarte, J, Zufferey, R, Nichols, A, Mermillod, B, Philippe, J, ...
Ontogenic relationships between the different types of endocrine cells in the islets of Langerhans were explored by generating transgenic mouse embryos in which cells transcribing the glucagon,...
Design and performance of the SLD vertex detector, a 120-MPixel tracking system (1992)
SLD Collaboration, Agnew, G, Cotton, R, Damerell, C, English, R, Gillman, A, ...
Design and performance of the SLD vertex detector: A 120-Mpixel tracking system (1992)
Damerell, C J S, English, RL, Gillman, A R, Lintern, A L, Nichols, A, Gang, R, ...
In *Dallas 1992, Proceedings, High energy physics, vol. 2* 1862-1866
ALEPH: a detector for electron-positron annihilations at LEP (1990)
Décamp, D, Deschizeaux, B, Lees, J P, Minard, M N, Crespo, J M, Delfino, M C, ...
Scale and Performance in a Distributed File System (1988)
John H. Howard, Michael L. Kazar, Sherri G. Menees, A. Nichols, M. Satyanarayanan, Robert N. Sidebotham, ...
The Andrew File System is a location-transparent distributed tile system that will eventually span more than 5000 workstations at Carnegie Mellon University. Large scale affects performance and...
Jones, K. E., Nichols, A., Zewail, A. H.
This paper outlines new ways for separating the different channels of optical dephasing of molecules in beams. It is shown that both the population loss and the optical phase relaxation rates can be...
Ablation of islet endocrine cells by targeted expression of hormone-promoter-driven toxigenes.
Herrera, P L, Huarte, J, Zufferey, R, Nichols, A, Mermillod, B, Philippe, J, ...
Ontogenic relationships between the different types of endocrine cells in the islets of Langerhans were explored by generating transgenic mouse embryos in which cells transcribing the glucagon,...
Ablation of islet endocrine cells by targeted expression of hormone-promoter-driven toxigenes.
Herrera, P L, Huarte, J, Zufferey, R, Nichols, A, Mermillod, B, Philippe, J, ...
Ontogenic relationships between the different types of endocrine cells in the islets of Langerhans were explored by generating transgenic mouse embryos in which cells transcribing the glucagon,...