University of Zurich

output

19922026

most citedGW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral

9.8k 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 1994Show all

19 papers · 1 filter

hep-th1994★ 51 cited

Gauge Theories in a Bag

A. Wipf, S. Duerr

We investigate multi-flavour gauge theories confined in $d\es 2n$-dimensional Euclidean bags. The boundary conditions for the 'quarks' break the axial flavour symmetry and depend o…

gr-qc1994★ 44 cited

Instability Proof for Einstein-Yang-Mills Solitons and Black Holes with Arbitrary Gauge Groups

Othmar Brodbeck, Norbert Straumann

We prove that static, spherically symmetric, asymptotically flat soliton and black hole solutions of the Einstein-Yang-Mills equations are unstable for arbitrary gauge groups, at l…

supr-con1994★ 50 cited

Spin pseudo-gap and interplane coupling in Y_2Ba_4Cu_7O_{15}: a ^{63}Cu nuclear spin-spin relaxation study

R. Stern, M. Mali, J. Roos +1

We report measurements of the Gaussian contribution, T_{2G}, to the plane ^{63}Cu nuclear spin--spin relaxation time in the YBa_2Cu_3O_7 and YBa_2Cu_4O_8 blocks of normal and super…

hep-th1994★ 21 cited

Nonabelian Gauge Theories: The Causal Approach

Tobias Hurth

We present the causal construction of perturbative Yang-Mills theories in four(3+1)-dimensional space-time. We work with free quantum fields throughout. The inductive causal method…

hep-th1994

Fermions in the Background of Dilatonic Sphalerons

George Lavrelashvili

We discuss the properties and interpretation of a discrete sequence of a static spherically symmetric solutions of the Yang-Mills-dilaton theory. This sequence is parametrized by t…

astro-ph1994★ 63 cited

A case for a baryonic dark halo

F. De Paolis, G. Ingrosso, Ph. Jetzer +1

Recent observations of microlensing events in the Large Magellanic Cloud by the MACHO and EROS collaborations suggest that an important fraction of the galactic halo is in the form…

hep-ph1994★ 99 cited

Effects of new physics in the rare decays $B \to K ℓ^{+} ℓ^{-}$ and $B \to K^{*} ℓ^{+} ℓ^{-}$

C. Greub, A. Ioannissian, D. Wyler

We parametrize phenomenologically possible new physics effects and calculate their influence on the invariant dilepton mass spectrum and the Dalitz plot for the decays $B \to K \el…

astro-ph1994★ 10 cited

Structure Formation in the Universe from Texture Induced Fluctuation

Ruth Durrer, Zhi-hong Zhou

The topic of this letter is structure formation with topological defects. We first present a partially new, fully local and gauge invariant system of perturbation equations to trea…

hep-ph1994★ 43 cited

Branching ratio and direct CP-violating rate asymmetry of the rare decays $B \to K^{*} γ$ and $B \to ρ γ$

C. Greub, H. Simma, D. Wyler

We calculate CP-violating rate asymmetries in the rare radiative decays $B^{\pm} \to K^{*\pm} γ$ and $B^{\pm} \to ρ^{\pm} γ$ . They arise because of the interference betw…

hep-ph1994★ 15 cited

On the Spontaneous CP Breaking at Finite Temperature in a Nonminimal Supersymmetric Standard Model

D. Comelli, M. Pietroni, A. Riotto

We study the spontaneous CP breaking at finite temperature in the Higgs sector in the Minimal Supersymmetric Standard Model with a gauge singlet. We consider the contribution of th…

hep-th1994★ 13 cited

Einstein-Yang-Mills Sphalerons and Level Crossing

Mikhail S. Volkov

The fermion energy spectrum along paths which connect topologically distinct vacua in the Einstein-Yang-Mills theory passing through the gravitational sphaleron equilibrium solutio…

hep-ph1994★ 10 cited

Atomic Alchemy

C. Greub, D. Wyler, S. Brodsky +1

We consider the transitions between electromagnetic bound states, such as the exclusive weak decay of a muonic atom into an electronic atom: $(μ^{-} Z) \to (e^{-} Z) ν ˉ_{e} ν_{μ} .$ …

astro-ph1994★ 9 cited

A new Contribution to Cosmological Perturbations of some Inflationary Models

R. Durrer, M. Sakellariadou

We show that there are inflationary models for which perturbations in the energy momentum tensor, which are of second order in the scalar field, cannot be neglected. We first speci…

hep-ph1994★ 19 cited

Gauge invariance of massless QED

Michael Duetsch, Tobias Hurth, Guenter Scharf

A simple general proof of gauge invariance in QED is given in the framework of causal perturbation theory. It illustrates a method which can also be used in non-abelian gauge theor…

math.FA1994

Self-Induced Compactness in Banach Spaces

Peter G. Casazza, Hans Jarchow

The question which led to the title of this note is the following: {\it If $X$ is a Banach space and $K$ is a compact subset of $X$ , is it possible to find a compact, or even appro…

gr-qc1994★ 26 cited

Instability of Gravitating Sphalerons

P. Boschung, O. Brodbeck, F. Moser +2

We prove the instability of the gravitating regular sphaleron solutions of the $S U (2)$ Einstein-Yang-Mills-Higgs system with a Higgs doublet, by studying the frequency spectrum of…

astro-ph1994★ 21 cited

Light Deflection in Perturbed Friedmann Universes

Ruth Durrer

In this letter a new formula for light deflection is derived using only physically observable concepts. The general result is specialized to cosmological perturbation theory and ex…

hep-th1994★ 2 cited

Fermion number non-conservation and gravity