Ruhr University Bochum

output

19922026

most citedLOFAR: The LOw-Frequency ARray

2.7k citations

researchers with a paper here

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

collaborating institutions

Showing 2018 · hep-phShow all

13 papers · 2 filters

hep-ph2018★ 13 cited

Possible bound states with hidden bottom from $K ˉ^{()} B^{()} B ˉ^{(*)}$ systems

Xiu-Lei Ren, Zhi-Feng Sun

We study the three-body systems of $K ˉ^{(*)} B^{(*)} B ˉ^{(*)}$ by solving the Faddeev equations in the fixed-center approximation, where the light particle $K ˉ^{(*)}$ …

hep-ph2018★ 5 cited

Exact summation of leading infrared logarithms in 2D effective field theories

Jonas Linzen, Maxim V. Polyakov, Kirill M. Semenov-Tian-Shansky +1

A method of exact all-order summation of leading infrared logarithms in two dimensional massless $Φ^{4}$ -type non-renormalizable effective field theories (EFTs) is developed. The met…

hep-ph2018★ 90 cited

Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data

IceCube Collaboration, M. G. Aartsen, M. Ackermann +325

The IceCube Collaboration has observed a high-energy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506+056. These results open…

hep-ph2018★ 19 cited

Remarks on the Heavy-Quark Flavour Symmetry for doubly heavy hadronic molecules

V. Baru, E. Epelbaum, J. Gegelia +3

The possibility for a common effective field theory for hadronic molecules with different heavy-quark flavours is examined critically. It is argued that such a theory does not allo…

hep-ph2018★ 57 cited

Nucleon gravitational form factors from instantons: forces between quark and gluon subsystems

Maxim V. Polyakov, Hyeon-Dong Son

Using the instanton picture of the QCD vacuum we compute the nucleon $c ˉ^{Q} (t)$ form factor of the quark part of the energy momentum tensor (EMT). This form factor describes the…

hep-ph2018★ 32 cited

$Ω (2012)$ through the looking glass of flavour SU(3)

Maxim V. Polyakov, Hyeon-Dong Son, Bao-Dong Sun +1

We perform the flavour $S U (3)$ analysis of the recently discovered $Ω (2012)$ hyperon. We find that well known (four star) $Δ (1700)$ resonance with quantum numbers of $J^{P} = 3/ 2^{-}$ is…

hep-ph2018★ 9 cited

Calculation of the pion-photon transition form factor using dispersion relations and renormalization-group summation

C. Ayala, S. V. Mikhailov, N. G. Stefanis

We consider the lightcone sum-rule description of the pion-photon transition form factor, based on dispersion relations, in combination with the renormalization group of QCD, in te…

hep-ph2018★ 43 cited

$K^{*}$ mesons with hidden charm arising from $K X (3872)$ and $K Z_{c} (3900)$ dynamics

Xiu-Lei Ren, Brenda B. Malabarba, Li-Sheng Geng +2

Inspired by the recent discovery of the pentaquark states $P_{c} (4450)$ and $P_{c} (4380)$ , which can be viewed as excited nucleon states with hidden charm, we study the three-body inte…

hep-ph2018★ 65 cited

The line shapes of the $Z_{b} (10610)$ and $Z_{b} (10650)$ in the elastic and inelastic channels revisited

Q. Wang, V. Baru, A. A. Filin +3

The most recent experimental data for all measured production and decay channels of the bottomonium-like states $Z_{b} (10610)$ and $Z_{b} (10650)$ are analysed simultaneously using solu…

hep-ph2018★ 368 cited

Forces inside hadrons: pressure, surface tension, mechanical radius, and all that

Maxim V. Polyakov, Peter Schweitzer

The physics related to the form factors of the energy momentum tensor spans a wide spectrum of problems, and includes gravitational physics, hard exclusive reactions, hadronic deca…

hep-ph2018★ 19 cited

Octet baryon magnetic moments at next-to-next-to-leading order in covariant chiral perturbation theory

Yang Xiao, Xiu-Lei Ren, Jun-Xu Lu +2

We calculate the octet baryon magnetic moments in covariant baryon chiral perturbation theory with the extended-on-mass-shell renormalization scheme up to next-to-next-to-leading o…

hep-ph2018★ 11 cited

On tetraquarks with hidden charm and strangeness as phi-psi(2S) hadrocharmonium

Julia Yu. Panteleeva, Irina A. Perevalova, Maxim V. Polyakov +1

In the hadrocharmonium picture a $c ˉ c$ state and a light hadron form a bound state. The effective interaction is described in terms of the chromoelectric polarizability of the…

hep-ph2018★ 13 cited

Determination of $J / ψ$ chromoelectric polarizability from lattice data