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How much space is left for a new family of fermions? (2009)
Journal Article
Bobrowski, M., Lenz, A., Riedl, J., & Rohrwild, J. (2009). How much space is left for a new family of fermions?. Physical Review D, 79(11), Article 113006. https://doi.org/10.1103/physrevd.79.113006

We perform an exploratory study of the allowed parameter range for the CKM-like mixing of hypothetical quarks of a fourth generation. As experimental constraints we use the tree-level determinations of the 3×3 Cabibbo-Kobayashi-Maskawa (CKM) elements... Read More about How much space is left for a new family of fermions?.

The long-chain dynamics in a model homopolymer blend under strong flow: small-angle neutron scattering and theory (2009)
Journal Article
Graham, R. S., Bent, J., Clarke, N., Hutchings, L. R., Richards, R. W., Gough, T., …McLeish, T. C. (2009). The long-chain dynamics in a model homopolymer blend under strong flow: small-angle neutron scattering and theory. Soft Matter, 5(12), 2383-2389. https://doi.org/10.1039/b817440g

We use small-angle neutron scattering (SANS) measurements to provide a detailed picture of the non-linear dynamics of the long chains in a model polystyrene blend. By a weighted subtraction of SANS measurements from two otherwise identical blends wit... Read More about The long-chain dynamics in a model homopolymer blend under strong flow: small-angle neutron scattering and theory.

N-ification of Forces: A Holographic Perspective on D-brane Model Building (2009)
Journal Article
Franco, S., Rodriguez-Gómez, D., & Verlinde, H. (2009). N-ification of Forces: A Holographic Perspective on D-brane Model Building. Journal of High Energy Physics, 2009(06), Article 030. https://doi.org/10.1088/1126-6708/2009/06/030

We study geometric aspects of extensions of the supersymmetric standard model that exhibit a periodic duality cascade. Via the holographic correspondence, the growth of the gauge group rank towards the UV is interpreted as a gradual decompactificatio... Read More about N-ification of Forces: A Holographic Perspective on D-brane Model Building.

Whispering-gallery exciton polaritons in submicron spheres (2009)
Journal Article
Platts, C., Kaliteevski, M., Brand, S., Abram, R., Iorsh, I., & Kavokin, A. (2009). Whispering-gallery exciton polaritons in submicron spheres. Physical review B, 79(24), https://doi.org/10.1103/physrevb.79.245322

We show that a semiconductor sphere with a radius comparable with the wavelength of light at the exciton resonance frequency can behave as a high-quality three-dimensional microcavity or "polariton dot." We obtain numerical results for gallium arseni... Read More about Whispering-gallery exciton polaritons in submicron spheres.

Statistical mechanics of convergent evolution in spatial patterning (2009)
Journal Article
Khatri, B. S., McLeish, T. C., & Sear, R. P. (2009). Statistical mechanics of convergent evolution in spatial patterning. Proceedings of the National Academy of Sciences, 106(24), 9564-9569. https://doi.org/10.1073/pnas.0812260106

We explore how the genotype–phenotype map determines convergent evolution in a simple model of spatial gene regulation during development. Evolution is simulated via a Monte Carlo scheme that incorporates mutation, selection, and genetic drift, by us... Read More about Statistical mechanics of convergent evolution in spatial patterning.

Effect of branching in cross-slot flow: the formation of ``W cusps'' (2009)
Journal Article
Hassell, D., Hoyle, D., Auhl, D., Harlen, O., Mackley, M., & McLeish, T. (2009). Effect of branching in cross-slot flow: the formation of ``W cusps''. Rheologica Acta, 48(5), 551-561. https://doi.org/10.1007/s00397-009-0353-0

The sensitivity of the principal stress difference (PSD) profile to molecular architecture is demonstrated for flow in a cross-slot geometry. For materials with low levels of branching, the pattern along the outlet centre line exhibited “single cusps... Read More about Effect of branching in cross-slot flow: the formation of ``W cusps''.

Detection of Far-Infrared and Polycyclic Aromatic Hydrocarbon Emission from the Cosmic Eye: Probing the Dust and Star Formation of Lyman Break Galaxies (2009)
Journal Article
Siana, B., Smail, I., Swinbank, A., Richard, J., Teplitz, H., Coppin, K., …Edge, A. (2009). Detection of Far-Infrared and Polycyclic Aromatic Hydrocarbon Emission from the Cosmic Eye: Probing the Dust and Star Formation of Lyman Break Galaxies. Astrophysical Journal, 698(2), 1273-1281. https://doi.org/10.1088/0004-637x/698/2/1273

We report the results of a Spitzer infrared (IR) study of the Cosmic Eye, a strongly lensed, L*UV Lyman break galaxy (LBG) at z = 3.074. We obtained Spitzer mid-IR spectroscopy as well as MIPS 24 and 70 μm photometry. The Eye is detected with high si... Read More about Detection of Far-Infrared and Polycyclic Aromatic Hydrocarbon Emission from the Cosmic Eye: Probing the Dust and Star Formation of Lyman Break Galaxies.

Balancing the energy budget between star formation and active galactic nuclei in high-redshift infrared luminous galaxies (2009)
Journal Article
Murphy, E., Chary, R., Alexander, D., Dickinson, M., Magnelli, B., Morrison, G., …Teplitz, H. (2009). Balancing the energy budget between star formation and active galactic nuclei in high-redshift infrared luminous galaxies. Astrophysical Journal, 698(1), 1380-1397. https://doi.org/10.1088/0004-637x/698/2/1380

We present deep Spitzer mid-infrared spectroscopy, along with 16, 24, 70, and 850 μm photometry, for 22 galaxies located in the Great Observatories Origins Deep Survey-North (GOODS-N) field. The sample spans a redshift range of 0.6 lsim z lsim 2.6, 2... Read More about Balancing the energy budget between star formation and active galactic nuclei in high-redshift infrared luminous galaxies.