Bulk entanglement entropy for photons and gravitons in AdS$_3$ (2020)
Journal Article
Belin, A., Iqbal, N., & Kruthoff, J. (2020). Bulk entanglement entropy for photons and gravitons in AdS$_3$. SciPost Physics, 8(5), Article 075. https://doi.org/10.21468/scipostphys.8.5.075

We study quantum corrections to holographic entanglement entropy in AdS3/CFT2; these are given by the bulk entanglement entropy across the Ryu-Takayanagi surface for all fields in the effective gravitational theory. We consider bulk U(1) gauge fields... Read More about Bulk entanglement entropy for photons and gravitons in AdS$_3$.

How to include exclusive J/ψ production data in global PDF analyses (2020)
Journal Article
Flett, C., Jones, S., Martin, A., Ryskin, M., & Teubner, T. (2020). How to include exclusive J/ψ production data in global PDF analyses. Physical Review D, 101(9), Article 094011. https://doi.org/10.1103/physrevd.101.094011

We compare the cross section for exclusive J=ψ photoproduction calculated at next-to-leading order (NLO) in the collinear factorization approach with HERA and LHCb data. Using the optimum scale formalism together with the subtraction of the low kt co... Read More about How to include exclusive J/ψ production data in global PDF analyses.

Quantized Coulomb Branches, Monopole Bubbling and Wall-Crossing Phenomena in 3d N=4 Theories (2020)
Journal Article
Assel, B., Cremonesi, S., & Renwick, M. (2020). Quantized Coulomb Branches, Monopole Bubbling and Wall-Crossing Phenomena in 3d N=4 Theories. Journal of High Energy Physics, 2020(4), Article 213. https://doi.org/10.1007/jhep04%282020%29213

To study the quantized Coulomb branch of 3d N = 4 unitary SQCD theories, we propose a new method to compute correlators of monopole and Casimir operators that are inserted in the R×R2ε Omega background. This method combines results from supersymmetri... Read More about Quantized Coulomb Branches, Monopole Bubbling and Wall-Crossing Phenomena in 3d N=4 Theories.

Large Effects from Small QCD Instantons: Making Soft Bombs at Hadron Colliders (2020)
Journal Article
Khoze, V. V., Krauss, F., & Schott, M. (2020). Large Effects from Small QCD Instantons: Making Soft Bombs at Hadron Colliders. Journal of High Energy Physics, 2020(4), Article 201. https://doi.org/10.1007/jhep04%282020%29201

It is a common belief that the last missing piece of the Standard Model of particles physics was found with the discovery of the Higgs boson at the Large Hadron Collider. However, there remains a major prediction of quantum tunnelling processes media... Read More about Large Effects from Small QCD Instantons: Making Soft Bombs at Hadron Colliders.

SU(2) channels the cancellation of K3 BPS states (2020)
Journal Article
Taormina, A., & Wendland, K. (2020). SU(2) channels the cancellation of K3 BPS states. Journal of High Energy Physics, 2020(04), Article 184. https://doi.org/10.1007/jhep04%282020%29184

The conformal field theoretic elliptic genus, an invariant for N = (2, 2) superconformal field theories, counts the BPS states in any such theory with signs, according to their bosonic or fermionic nature. For K3 theories, this invariant is the sourc... Read More about SU(2) channels the cancellation of K3 BPS states.

CP violation and circular polarisation in neutrino radiative decay (2020)
Journal Article
Balaji, S., Ramirez-Quezada, M., & Zhou, Y. (2020). CP violation and circular polarisation in neutrino radiative decay. Journal of High Energy Physics, 2020(4), Article 178. https://doi.org/10.1007/jhep04%282020%29178

The radiative decay of neutral fermions has been studied for decades but CP violation induced within such a paradigm has evaded attention. CP violation in these processes can produce an asymmetry between circularly polarised directions of the radiate... Read More about CP violation and circular polarisation in neutrino radiative decay.

Isolated photon and photon+jet production at NNLO QCD accuracy (2020)
Journal Article
Chen, X., Gehrmann, T., Glover, N., Höfer, M., & Huss, A. (2020). Isolated photon and photon+jet production at NNLO QCD accuracy. Journal of High Energy Physics, 2020(4), Article 166. https://doi.org/10.1007/jhep04%282020%29166

We describe the calculation of the next-to-next-to-leading order (NNLO) QCD corrections to isolated photon and photon-plus-jet production, and discuss how the experimental hadron-level photon definition and isolation criteria can be approximated in t... Read More about Isolated photon and photon+jet production at NNLO QCD accuracy.

Generalized ’t Hooft anomalies on non-spin manifolds (2020)
Journal Article
Anber, M. M., & Poppitz, E. (2020). Generalized ’t Hooft anomalies on non-spin manifolds. Journal of High Energy Physics, 2020(4), Article 97. https://doi.org/10.1007/jhep04%282020%29097

We study the mixed anomaly between the discrete chiral symmetry and general baryon-color-flavor (BCF) backgrounds in SU(Nc) gauge theories with Nf flavors of Dirac fermions in representations ℛc of N -ality nc, formulated on non-spin manifolds. We sh... Read More about Generalized ’t Hooft anomalies on non-spin manifolds.

Type-B anomaly matching and the 6D (2,0) theory (2020)
Journal Article
Niarchos, V., Papageorgakis, C., & Pomoni, E. (2020). Type-B anomaly matching and the 6D (2,0) theory. Journal of High Energy Physics, 2020(4), Article 48. https://doi.org/10.1007/jhep04%282020%29048

We study type-B conformal anomalies associated with 12 -BPS Coulomb-branch operators in 4D N = 2 superconformal field theories. When the vacuum preserves the conformal symmetry these anomalies coincide with the two-point function coefficients in the... Read More about Type-B anomaly matching and the 6D (2,0) theory.

Logarithmic accuracy of angular-ordered parton showers (2020)
Journal Article
Bewick, G., Ravasio, S. F., Richardson, P., & Seymour, M. H. (2020). Logarithmic accuracy of angular-ordered parton showers. Journal of High Energy Physics, 2020(4), Article 19. https://doi.org/10.1007/jhep04%282020%29019

We study the logarithmic accuracy of angular-ordered parton showers by considering the singular limits of multiple emission matrix elements. This allows us to consider different choices for the evolution variable and propose a new choice which has bo... Read More about Logarithmic accuracy of angular-ordered parton showers.

One-loop amplitudes in AdS5×S5 supergravity from N = 4 SYM at strong coupling (2020)
Journal Article
Aprile, F., Drummond, J., Heslop, P., & Paul, H. (2020). One-loop amplitudes in AdS5×S5 supergravity from N = 4 SYM at strong coupling. Journal of High Energy Physics, 2020(3), Article 190. https://doi.org/10.1007/jhep03%282020%29190

We explore the structure of maximally supersymmetric Yang-Mills correlators in the supergravity regime. We develop an algorithm to construct one-loop supergravity amplitudes of four arbitrary Kaluza-Klein supergravity states, properly dualised into s... Read More about One-loop amplitudes in AdS5×S5 supergravity from N = 4 SYM at strong coupling.

Isolating the Odderon in central production in high energy pA and AA collisions (2020)
Journal Article
McNulty, R., Khoze, V., Martin, A., & Ryskin, M. (2020). Isolating the Odderon in central production in high energy pA and AA collisions. The European Physical Journal C, 80(3), Article 80. https://doi.org/10.1140/epjc/s10052-020-7846-5

We study the rapidity dependence of the central exclusive production cross sections of C-even mesons in pA and AA collisions, where A is a heavy ion. We observe qualitatively different behaviour of the contributions arising from γ-Odderon and Pomeron... Read More about Isolating the Odderon in central production in high energy pA and AA collisions.

Off-shell vs on-shell modelling of top quarks in photon associated production (2020)
Journal Article
Bevilacqua, G., Hartanto, H., Kraus, M., Weber, T., & Worek, M. (2020). Off-shell vs on-shell modelling of top quarks in photon associated production. Journal of High Energy Physics, 2020(3), Article 154. https://doi.org/10.1007/jhep03%282020%29154

We present a comparative study of various approaches for modelling of the e+veμ−v¯¯¯μbb¯¯γ final state in tt¯γ production at the LHC. Working at the NLO in QCD we compare the fully realistic description of the top quark decay chain with the one provi... Read More about Off-shell vs on-shell modelling of top quarks in photon associated production.

Charming new B-physics (2020)
Journal Article
Jäger, S., Kirk, M., Lenz, A., & Leslie, K. (2020). Charming new B-physics. Journal of High Energy Physics, 2020(3), Article 122. https://doi.org/10.1007/jhep03%282020%29122

We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in b → cc¯¯cs transitions, considering the full set of 20 four-quark operators. We discuss the leading-order structure of their RG mixing with each other as... Read More about Charming new B-physics.

Deconfinement on axion domain walls (2020)
Journal Article
Anber, M. M., & Poppitz, E. (2020). Deconfinement on axion domain walls. Journal of High Energy Physics, 2020(3), Article 124. https://doi.org/10.1007/jhep03%282020%29124

We study SU(Nc) gauge theories with Dirac fermions in representations ℛ of nonzero N -ality, coupled to axions. These theories have an exact discrete chiral symmetry, which has a mixed ’t Hooft anomaly with general baryon-color-flavor backgrounds, ca... Read More about Deconfinement on axion domain walls.

Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector (2020)
Journal Article
Ballett, P., Boschi, T., & Pascoli, S. (2020). Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector. Journal of High Energy Physics, 2020(3), Article 111. https://doi.org/10.1007/jhep03%282020%29111

Heavy nearly-sterile neutrinos are a common ingredient in extensions of the Standard Model which aim to explain neutrino masses, like for instance in Type I seesaw models, or one of its variants. If the scale of the new Heavy Neutral Leptons (HNLs) i... Read More about Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector.

The axion mass from 5D small instantons (2020)
Journal Article
Gherghetta, T., Khoze, V. V., Pomarol, A., & Shirman, Y. (2020). The axion mass from 5D small instantons. Journal of High Energy Physics, 2020(3), Article 063. https://doi.org/10.1007/jhep03%282020%29063

We calculate a new contribution to the axion mass that arises from gluons propagating in a 5th dimension at high energies. By uplifting the 4D instanton solution to five dimensions, the positive frequency modes of the Kaluza-Klein states generate a p... Read More about The axion mass from 5D small instantons.

A Peptide–Nucleic Acid Replicator Origin for Life (2020)
Journal Article
Piette, B. M., & Heddle, J. G. (2020). A Peptide–Nucleic Acid Replicator Origin for Life. Trends in Ecology and Evolution, 35(5), 397-406. https://doi.org/10.1016/j.tree.2020.01.001

Evolution requires self-replication. But, what was the very first self-replicator directly ancestral to all life? The currently favoured RNA World theory assigns this role to RNA alone but suffers from a number of seemingly intractable problems. Inst... Read More about A Peptide–Nucleic Acid Replicator Origin for Life.

Detecting gravitational waves from cosmological phase transitions with LISA: an update (2020)
Journal Article
Caprini, C., Chala, M., Dorsch, G. C., Hindmarsh, M., Huber, S. J., Konstandin, T., …Weir, D. J. (2020). Detecting gravitational waves from cosmological phase transitions with LISA: an update. Journal of Cosmology and Astroparticle Physics, 2020(03), Article 024. https://doi.org/10.1088/1475-7516/2020/03/024

We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in... Read More about Detecting gravitational waves from cosmological phase transitions with LISA: an update.

Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment (2020)
Journal Article
Aralis, T., Aramaki, T., Arnquist, I., Azadbakht, E., Baker, W., Banik, S., …Zheng, L. (2020). Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment. Physical Review D, 101(5), Article 052008. https://doi.org/10.1103/physrevd.101.052008

We present an analysis of electron recoils in cryogenic germanium detectors operated during the SuperCDMS Soudan experiment. The data are used to set new constraints on the axioelectric coupling of axionlike particles and the kinetic mixing parameter... Read More about Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment.