Uppsala University

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2017 · hep-phShow all

11 papers · 2 filters

hep-ph2017★ 3 cited

Cristal and Azurite: new tools for integration-by-parts reductions

Alessandro Georgoudis, Kasper J. Larsen, Yang Zhang

Scattering amplitudes computed at a fixed loop order, along with any other object computed in perturbative quantum field theory, can be expressed as a linear combination of a finit…

hep-ph2017★ 17 cited

Minimal anomalous $U (1)$ theories and collider phenomenology

Andreas Ekstedt, Rikard Enberg, Gunnar Ingelman +2

We study the collider phenomenology of a neutral gauge boson $Z^{'}$ arising in minimal but anomalous $U (1)$ extensions of the Standard Model (SM). To retain gauge invariance…

hep-ph2017★ 11 cited

Heavy charged scalars from $c s ˉ$ fusion: A generic search strategy applied to a 3HDM with $U (1) \times U (1)$ family symmetry

José Eliel Camargo-Molina, Tanumoy Mandal, Roman Pasechnik +1

We describe a class of three Higgs doublet models (3HDMs) with a softly broken $U (1) \times U (1)$ family symmetry that enforces a Cabibbo-like quark mixing while…

hep-ph2017★ 15 cited

Production and sequential decays of charmed hyperons

Göran Fäldt

We investigate production and decay of the $Λ_{c}^{+}$ hyperon. The production considered is through the $e^{+} e^{-}$ annihilation channel, $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ , with summat…

hep-ph2017★ 38 cited

The nucleon as a test case to calculate vector-isovector form factors at low energies

Stefan Leupold

Extending a recent suggestion for hyperon form factors to the nucleon case, dispersion theory is used to relate the low-energy vector-isovector form factors of the nucleon to the p…

hep-ph2017★ 31 cited

Identifying a light charged Higgs boson at the LHC Run II

Abdesslam Arhrib, Rachid Benbrik, Rikard Enberg +3

We analyse the phenomenological implications of a light Higgs boson, $h$ , within the CP-conserving 2-Higgs Doublet Model (2HDM) Type-I, for the detection prospects of the charged $…

hep-ph2017

Electroweak production of Higgs boson pairs in 2HDMs

Rikard Enberg, William Klemm, Stefano Moretti +1

One of the main features of a Two-Higgs Doublet Model (2HDM) is the presence of two additional neutral Higgs states, besides the one mimicking the ~125 GeV state observed at the LH…

hep-ph2017★ 4 cited

A scale at 10 MeV, gravitational topological vacuum, and large extra dimensions

Ufuk Aydemir

We discuss a possible scale of gravitational origin at around $10$ MeV, or $1 0^{- 12}$ cm, which arises in the MacDowell-Mansouri formalism of gravity due to the topological Gauss-B…

hep-ph2017★ 110 cited

Hadronic structure functions in the $e^{+} e^{-} \to Λ ˉ Λ$ reaction

Göran Fäldt, Andrzej Kupsc

Cross-section distributions are calculated for the reaction $e^{+} e^{-} \to J / ψ \to Λ ˉ (\to p ˉ π^{+}) Λ (\to p π^{-})$ , and related annihilation reactio…

hep-ph2017★ 57 cited

The electromagnetic Sigma-to-Lambda hyperon transition form factors at low energies

Carlos Granados, Stefan Leupold, Elisabetta Perotti

Using dispersion theory the low-energy electromagnetic form factors for the transition of a Sigma to a Lambda hyperon are related to the pion vector form factor. The additionally r…

hep-ph2017★ 15 cited

Effect of strong magnetic field on competing order parameters in two-flavor dense quark matter

Tanumoy Mandal, Prashanth Jaikumar

We study the effect of strong magnetic field on competing chiral and diquark order parameters in a regime of moderately dense quark matter. The inter-dependence of the chiral and d…