Outputs (2904)

Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections (2019)
Journal Article
Broggio, A., Ferroglia, A., Frederix, R., Pagani, D., Pecjak, B. D., & Tsinikos, I. (2019). Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections. Journal of High Energy Physics, 2019(8), Article 39. https://doi.org/10.1007/jhep08%282019%29039

This work studies the associated production of a top-quark pair with a W, Z, or Higgs boson at the LHC. Predictions for the total cross sections as well as for several differential distributions of the massive particles in the final state are provide... Read More about Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections.

What if Planet 9 is a Primordial Black Hole? (2020)
Journal Article
Scholtz, J., & Unwin, J. (2020). What if Planet 9 is a Primordial Black Hole?. Physical Review Letters, 125(5), Article 051103. https://doi.org/10.1103/physrevlett.125.051103

We highlight that the anomalous orbits of trans-Neptunian objects (TNOs) and an excess in microlensing events in the 5-year Optical Gravitational Lensing Experiment data set can be simultaneously explained by a new population of astrophysical bodies... Read More about What if Planet 9 is a Primordial Black Hole?.

Non-Lorentzian M5-brane Theories from Holography (2019)
Journal Article
Lambert, N., Lipstein, A., & Richmond, P. (2019). Non-Lorentzian M5-brane Theories from Holography. Journal of High Energy Physics, 2019(08), Article 060. https://doi.org/10.1007/jhep08%282019%29060

M-theory on AdS7 × S4 admits a description where the AdS7 factor is constructed as a timelike Hopf fibration over a non-compact three dimensional complex projective space CP ~ 3 CP~3 [1]. We consider the worldvolume theory for M5-branes at a fixed CP... Read More about Non-Lorentzian M5-brane Theories from Holography.

Probes of the Standard Model effective field theory extended with a right-handed neutrino (2019)
Journal Article
Alcaide, J., Banerjee, S., Chala, M., & Titov, A. (2019). Probes of the Standard Model effective field theory extended with a right-handed neutrino. Journal of High Energy Physics, 2019(8), Article 31. https://doi.org/10.1007/jhep08%282019%29031

If neutrinos are Dirac particles and, as suggested by the so far null LHC results, any new physics lies at energies well above the electroweak scale, the Standard Model effective field theory has to be extended with operators involving the right-hand... Read More about Probes of the Standard Model effective field theory extended with a right-handed neutrino.

A revisit to scalar dark matter with radiative corrections (2019)
Journal Article
Banerjee, S., & Chakrabarty, N. (2019). A revisit to scalar dark matter with radiative corrections. Journal of High Energy Physics, 2019(5), Article 150. https://doi.org/10.1007/jhep05%282019%29150

Extended Higgs sectors have been studied extensively in context of dark matter phenomenology in tandem with other aspects. In this study, we compute radiative corrections to the dark matter-Higgs portal coupling, which is in fact a common feature of... Read More about A revisit to scalar dark matter with radiative corrections.

Bs mixing observables and |Vtd/Vts| from sum rules (2019)
Journal Article
King, D., Lenz, A., & Rauh, T. (2019). Bs mixing observables and |Vtd/Vts| from sum rules. Journal of High Energy Physics, 2019(5), Article 34. https://doi.org/10.1007/jhep05%282019%29034

We consider the effects of a non-vanishing strange-quark mass in the determination of the full basis of dimension six matrix elements for Bs mixing, in particular we get for the ratio of the V − A Bag parameter in the Bs and Bd system: B s Q1 /B d Q1... Read More about Bs mixing observables and |Vtd/Vts| from sum rules.

Dai-Freed anomalies in particle physics (2019)
Journal Article
García-Etxebarria, I., & Montero, M. (2019). Dai-Freed anomalies in particle physics. Journal of High Energy Physics, 2019(8), Article 3. https://doi.org/10.1007/jhep08%282019%29003

Anomalies can be elegantly analyzed by means of the Dai-Freed theorem. In this framework it is natural to consider a refinement of traditional anomaly cancellation conditions, which sometimes leads to nontrivial extra constraints in the fermion spect... Read More about Dai-Freed anomalies in particle physics.

Generalised CP symmetry in modular-invariant models of flavour (2019)
Journal Article
Novichkov, P., Penedo, J., Petcov, S., & Titov, A. (2019). Generalised CP symmetry in modular-invariant models of flavour. Journal of High Energy Physics, 2019(7), Article 65. https://doi.org/10.1007/jhep07%282019%29165

The formalism of combined finite modular and generalised CP (gCP) sym-metries for theories of flavour is developed. The corresponding consistency conditions for the two symmetry transformations acting on the modulus τ and on the matter fields are der... Read More about Generalised CP symmetry in modular-invariant models of flavour.

Metastable Nonextremal Antibranes (2019)
Journal Article
Armas, J., Nguyen, N., Niarchos, V., Obers, N., & Van Riet, T. (2019). Metastable Nonextremal Antibranes. Physical Review Letters, 122(18), Article 181601. https://doi.org/10.1103/physrevlett.122.181601

We find new and compelling evidence for the metastability of supersymmetry-breaking states in holographic backgrounds whose consistency has been the source of ongoing disagreements in the literature. As a concrete example, we analyze anti-D3 branes a... Read More about Metastable Nonextremal Antibranes.

Twisted indices of 3d N = 4 gauge theories and enumerative geometry of quasi-maps (2019)
Journal Article
Bullimore, M., Ferrari, A., & Kim, H. (2019). Twisted indices of 3d N = 4 gauge theories and enumerative geometry of quasi-maps. Journal of High Energy Physics, 2019(7), Article 14. https://doi.org/10.1007/jhep07%282019%29014

We explore the geometric interpretation of the twisted index of 3d N = 4 gauge theories on S 1 × Σ where Σ is a closed Riemann surface. We focus on a rich class of supersymmetric quiver gauge theories that have isolated vacua under generic mass and F... Read More about Twisted indices of 3d N = 4 gauge theories and enumerative geometry of quasi-maps.

Neutrino portals to dark matter (2019)
Journal Article
Blennow, M., Fernandez-Martinez, E., Olivares-Del Campo, A., Pascoli, S., Rosauro-Alcaraz, S., & Titov, A. (2019). Neutrino portals to dark matter. The European Physical Journal C, 79(7), Article 555. https://doi.org/10.1140/epjc/s10052-019-7060-5

We explore the possibility that dark matter interactions with Standard Model particles are dominated by interactions with neutrinos. We examine whether it is possible to construct such a scenario in a gauge invariant manner. We first study the coupli... Read More about Neutrino portals to dark matter.

A note on non-flat points in the SU(5) × U(1)PQ F-theory model (2019)
Journal Article
Achmed-Zade, I., García-Etxebarria, I., & Mayrhofer, C. (2019). A note on non-flat points in the SU(5) × U(1)PQ F-theory model. Journal of High Energy Physics, 2019(5), Article 13. https://doi.org/10.1007/jhep05%282019%29013

Non-flat fibrations often appear in F-theory GUT models, and their interpretation is still somewhat mysterious. In this note we explore this issue in a model of particular phenomenological interest, the global SU(5) × U(1) Peccei-Quinn F-theory model... Read More about A note on non-flat points in the SU(5) × U(1)PQ F-theory model.

Early seeds of axion miniclusters (2019)
Journal Article
Vaquero, A., Redondo, J., & Stadler, J. (2019). Early seeds of axion miniclusters. Journal of Cosmology and Astroparticle Physics, 2019, Article 012. https://doi.org/10.1088/1475-7516/2019/04/012

We study the small scale structure of axion dark matter in the post-inflationary scenario, which predicts the formation of low-mass, high density clumps of gravitationally bound axions called axion miniclusters. To this end we follow numerically the... Read More about Early seeds of axion miniclusters.

Exclusive vector meson production in heavy ion collisions (2019)
Journal Article
Khoze, V., Martin, A., & Ryskin, M. (2019). Exclusive vector meson production in heavy ion collisions. Journal of Physics G: Nuclear and Particle Physics, 46(8), Article 085002. https://doi.org/10.1088/1361-6471/ab2009

We discuss the salient features of exclusive vector meson production in heavy ion collisions at LHC energies. Special attention is paid to the space-time picture of the process. We account for both coherent and incoherent contributions. The explicit... Read More about Exclusive vector meson production in heavy ion collisions.

Out-of-the-box baryogenesis during relaxation (2019)
Journal Article
Abel, S., Gupta, R., & Scholtz, J. (2019). Out-of-the-box baryogenesis during relaxation. Physical Review D, 100, Article 015034. https://doi.org/10.1103/physrevd.100.015034

We show that spontaneous baryogenesis occurs automatically in relaxion models if the reheating temperature is larger than the weak scale, provided the Standard Model fields are charged under the U(1) of which the relaxion is a pseudo-Nambu-Goldstone... Read More about Out-of-the-box baryogenesis during relaxation.

Five-dimensional SCFTs and gauge theory phases: an M-theory/type IIA perspective (2019)
Journal Article
Closset, C., Del Zotto, M., & Saxena, V. (2019). Five-dimensional SCFTs and gauge theory phases: an M-theory/type IIA perspective. SciPost Physics, 6(5), Article 052. https://doi.org/10.21468/scipostphys.6.5.052

We revisit the correspondence between Calabi-Yau (CY) threefold isolated singularities X and five-dimensional superconformal field theories (SCFTs), which arise at low energy in M-theory on the space-time transverse to X. Focussing on the case of tor... Read More about Five-dimensional SCFTs and gauge theory phases: an M-theory/type IIA perspective.

Multiple interactions and rapidity gap survival (2018)
Journal Article
Khoze, V., Martin, A., & Ryskin, M. (2018). Multiple interactions and rapidity gap survival. Journal of Physics G: Nuclear and Particle Physics, 45(5), Article 053002. https://doi.org/10.1088/1361-6471/aab1bf

Observations of rare processes containing large rapidity gaps at high energy colliders may be exceptionally informative. However the cross sections of these events are small in comparison with that for the inclusive processes since there is a large p... Read More about Multiple interactions and rapidity gap survival.

Effective field theory for black holes with induced scalar charges (2019)
Journal Article
Wong, L. K., Davis, A., & Gregory, R. (2019). Effective field theory for black holes with induced scalar charges. Physical Review D, 100(2), Article 024010. https://doi.org/10.1103/physrevd.100.024010

While no-hair theorems forbid isolated black holes from possessing permanent moments beyond their mass, electric charge, and angular momentum, research over the past two decades has demonstrated that a black hole interacting with a time-dependent bac... Read More about Effective field theory for black holes with induced scalar charges.

HYTREES: combining matrix elements and parton shower for hypothesis testing (2019)
Journal Article
Prestel, S., & Spannowsky, M. (2019). HYTREES: combining matrix elements and parton shower for hypothesis testing. The European Physical Journal C, 79(7), Article 546. https://doi.org/10.1140/epjc/s10052-019-7030-y

We present a new way of performing hypothesis tests on scattering data, by means of a perturbatively calculable classifier. This classifier exploits the “history tree” of how the measured data point might have evolved out of any simpler (reconstructe... Read More about HYTREES: combining matrix elements and parton shower for hypothesis testing.

B anomalies and dark matter: a complex connection (2019)
Journal Article
Cerdeño, D., Cheek, A., Martín-Ramiro, P., & Moreno, J. (2019). B anomalies and dark matter: a complex connection. The European Physical Journal C, 79(6), Article 517. https://doi.org/10.1140/epjc/s10052-019-6979-x

We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in B→K(∗)l+l− decays at LHCb, while providing a viable candidate for dark matter. The model incorporates two new scalar fields and... Read More about B anomalies and dark matter: a complex connection.