Skip to main content

Research Repository

Advanced Search

Outputs (271)

Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering (2024)
Journal Article
Gardi, E., Herzog, F., Jones, S., & Ma, Y. (2024). Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering. Journal of High Energy Physics, 2024(8), Article 127. https://doi.org/10.1007/jhep08%282024%29127

Parametric representations of Feynman integrals have a key property: many, frequently all, of the Landau singularities appear as endpoint divergences. This leads to a geometric interpretation of the singularities as faces of Newton polytopes, which f... Read More about Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering.

Magnetization dynamics in single and trilayer nanowires. (2024)
Journal Article
Kuchibhotla, M., Haldar, A., & Adeyeye, A. O. (2024). Magnetization dynamics in single and trilayer nanowires. Journal of Physics: Condensed Matter, 36(45), Article 455808. https://doi.org/10.1088/1361-648X/ad6c9a

We have studied the magnetization dynamics of single Py( ) ( = 20 nm, 50 nm) and trilayer [Py(50)/Pd( )/Py(20)] nanowire arrays fabricated over large areas using deep ultraviolet lithography technique. The dynamic properties are sensitive to the fiel... Read More about Magnetization dynamics in single and trilayer nanowires..

Lorentz violating backgrounds from quadratic, shift-symmetric, ultralight dark matter (2024)
Journal Article
Jiang, M., Pecjak, B. D., Perez, G., & Sankaranarayanan, S. (in press). Lorentz violating backgrounds from quadratic, shift-symmetric, ultralight dark matter. Journal of High Energy Physics, 2024(8), Article 114. https://doi.org/10.1007/jhep08%282024%29114

We consider an effective theory for a shift-symmetric, quadratically-coupled, ultralight spin-0 field. The leading CP conserving interactions with Standard Model fields in the effective theory arise at dimension 8. We discuss the renormalization grou... Read More about Lorentz violating backgrounds from quadratic, shift-symmetric, ultralight dark matter.

Following the Pulsations in the Long-term Cooling of GW Librae and V386 Serpentis (2024)
Journal Article
Szkody, P., van Roestel, J., Bell, K. J., Vanderbosch, Z. P., Mukadam, A., & Scaringi, S. (2024). Following the Pulsations in the Long-term Cooling of GW Librae and V386 Serpentis. Astronomical Journal, 168(3), Article 114. https://doi.org/10.3847/1538-3881/ad656f

GW Lib and V386 Ser are dwarf novae systems containing pulsating white dwarfs that underwent large 8–9 mag amplitude outbursts in 2007 and 2019, respectively. Following the pulsation periods in these systems after the outburst provides a means to vie... Read More about Following the Pulsations in the Long-term Cooling of GW Librae and V386 Serpentis.

Antenna subtraction for processes with identified particles at hadron colliders (2024)
Journal Article
Bonino, L., Gehrmann, T., Marcoli, M., Schürmann, R., & Stagnitto, G. (2024). Antenna subtraction for processes with identified particles at hadron colliders. Journal of High Energy Physics, 2024(8), Article 73. https://doi.org/10.1007/jhep08%282024%29073

Collider processes with identified hadrons in the final state are widely studied in view of determining details of the proton structure and of understanding hadronization. Their theory description requires the introduction of fragmentation functions,... Read More about Antenna subtraction for processes with identified particles at hadron colliders.

Indirect measurement of atomic magneto-optical rotation via Hilbert transform (2024)
Journal Article
Briscoe, J. D., Pizzey, D., Wrathmall, S. A., & Hughes, I. G. (2024). Indirect measurement of atomic magneto-optical rotation via Hilbert transform. Journal of Physics B: Atomic, Molecular and Optical Physics, 57(17), 175401. https://doi.org/10.1088/1361-6455/ad5e24

The Kramers–Kronig relations are a pivotal foundation of linear optics and atomic physics, embedding a physical connection between the real and imaginary components of any causal response function. A mathematically equivalent, but simpler, approach i... Read More about Indirect measurement of atomic magneto-optical rotation via Hilbert transform.

Tri-boson and WH production in the W + W + jj channel: predictions at full NLO accuracy and beyond (2024)
Journal Article
Denner, A., Pellen, M., Schönherr, M., & Schumann, S. (2024). Tri-boson and WH production in the W + W + jj channel: predictions at full NLO accuracy and beyond. Journal of High Energy Physics, 2024(8), Article 43. https://doi.org/10.1007/jhep08%282024%29043

In this work, we present the first full NLO predictions for the process pp → μ+νμe+νejj at the LHC in a typical tri-boson phase space. The NLO corrections reach 50% at the level of the fiducial cross section and have a very different hierarchy with r... Read More about Tri-boson and WH production in the W + W + jj channel: predictions at full NLO accuracy and beyond.

First measurements of energetic protons in Mega Amp Spherical Tokamak Upgrade (MAST-U). (2024)
Journal Article
Aboutaleb, A., Allan, S. Y., Boeglin, W. U., Cecconello, M., Jackson, A., McClements, K. G., & Parr, E. (2024). First measurements of energetic protons in Mega Amp Spherical Tokamak Upgrade (MAST-U). Review of Scientific Instruments, 95(8), Article 083522. https://doi.org/10.1063/5.0218380

First proton production rates from the d(d,p)t reaction in the Mega Amp Spherical Tokamak Upgrade (MAST-U) are measured. The data were taken during the MAST-U experimental campaign with an upgraded version of the proton detector (PD) previously used... Read More about First measurements of energetic protons in Mega Amp Spherical Tokamak Upgrade (MAST-U)..