J. Jaeckel

Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology (2008)

Abel, S. A., Goodsell, M. D., Jaeckel, J., Khoze, V. V., Ringwald, A.

Embeddings of the standard model in type II string theory typically contain a variety of U(1) gauge factors arising from D-branes in the bulk. In general, there is no reason why only one of these -...

A Cavity Experiment to Search for Hidden Sector Photons. (2008)

J. Jaeckel, DESY Forschung Hochenergiephysik, A. Ringwald

Journal article

Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology. (2008)

S.A. Abel, DESY Forschung Hochenergiephysik, M.D. Goodsell, J. Jaeckel, V.V. Khoze, A. Ringwald

Internal report | Preprint

Signatures of a Hidden Cosmic Microwave Background. (2008)

J. Jaeckel, DESY Forschung Hochenergiephysik, J. Redondo, A. Ringwald

Internal report | Preprint

Laser Experiments Explore the Hidden Sector. (2008)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, J. Redondo, A. Ringwald

Journal article

Probing Hidden Sector Photons through the Higgs Window. (2008)

M. Ahlers, DESY Forschung Hochenergiephysik, J. Jaeckel, J. Redondo, A. Ringwald

Internal report | Preprint

Illuminating the Hidden Sector of String Theory by Shining Light through a Magnetic Field. (2008)

S.A. Abel, DESY Forschung Hochenergiephysik, J. Jaeckel, V.V. Khoze, A. Ringwald

Journal article

Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology. (2008)

S.A. Abel, DESY Forschung Hochenergiephysik, M.D. Goodsell, J. Jaeckel, V.V. Khoze, A. Ringwald

Journal article

Probing Hidden Sector Photons through the Higgs Window. (2008)

M. Ahlers, DESY Forschung Hochenergiephysik, J. Jaeckel, J. Redondo, A. Ringwald

Journal article

Signatures of a Hidden Cosmic Microwave Background. (2008)

J. Jaeckel, DESY Forschung Hochenergiephysik, J. Redondo, A. Ringwald

Journal article

The Discovery Potential of Laser Polarization Experiments. (2008)

M. Ahlers, DESY Forschung Hochenergiephysik, J. Jaeckel, A. Ringwald

Internal report | Preprint

Laser experiments explore the hidden sector (2007)

Ahlers, M., Gies, H., Jaeckel, J., Redondo, J., Ringwald, A.

Recently, the laser experiments BMV and GammeV, searching for light shining through walls, have published data and calculated new limits on the allowed masses and couplings for axion-like particles....

Light from the Hidden Sector (2007)

Ahlers, M., Gies, H., Jaeckel, J., Redondo, J., Ringwald, A.

Optical precision experiments are a powerful tool to explore hidden sectors of a variety of standard-model extensions with potentially tiny couplings to photons. An important example is given by...

Particle interpretation of the PVLAS data : neutral versus charged particles. (2007)

Ahlers, M., Gies, H., Jaeckel, J., Ringwald, A.

Recently the PVLAS Collaboration reported the observation of a rotation of linearly polarized laser light induced by a transverse magnetic field—a signal being unexpected within standard QED. Two...

SUSY breaking by a metastable ground state : why the early universe preferred the non-supersymmetric vacuum. (2007)

Abel, S. A., Chu, C-S., Jaeckel, J., Khoze, V. V.

Supersymmetry breaking in a metastable vacuum is re-examined in a cosmological context. It is shown that thermal effects generically drive the Universe to the metastable minimum even if it begins in...

SUSY breaking by a metastable ground state : why the early universe preferred the non-supersymmetric vacuum. (2007)

Abel, S. A., Chu, C-S., Jaeckel, J., Khoze, V. V.

Supersymmetry breaking in a metastable vacuum is re-examined in a cosmological context. It is shown that thermal effects generically drive the Universe to the metastable minimum even if it begins in...

A Cavity Experiment to Search for Hidden Sector Photons. (2007)

J. Jaeckel, DESY Forschung Hochenergiephysik, A. Ringwald

Internal report | Preprint

Particle Interpretation of the PVLAS Data: Neutral versus Charged Particles. (2007)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, A. Ringwald

Journal article

Extending the Reach of Axion-photon Regeneration Experiments towards Larger Masses with Phase Shift Plates. (2007)

J. Jaeckel, DESY Forschung Hochenergiephysik, A. Ringwald

Journal article

Light from the Hidden Sector: Experimental Signatures of Paraphotons. (2007)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, J. Redondo, A. Ringwald

Journal article

Extending the Reach of Axion-photon Regeneration Experiments towards larger Masses with Phase Shift Plates. (2007)

J. Jaeckel, DESY Forschung Hochenergiephysik, A. Ringwald

Internal report | Preprint

Extending the Reach of Axion-photon Regeneration Experiments towards larger Masses with Phase Shift Plates. (2007)

J. Jaeckel, DESY Forschung Hochenergiephysik, A. Ringwald

Internal report | Preprint

Light from the Hidden Sector. (2007)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, J. Redondo, A. Ringwald

Internal report | Preprint

Laser Experiments Explore the Hidden Sector. (2007)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, J. Redondo, A. Ringwald

Internal report | Preprint

The Need for Purely Laboratory-based Axion-like Particle Searches. (2007)

J. Jaeckel, DESY Forschung Hochenergiephysik, E. Masso, J. Redondo, A. Ringwald, F. Takahashi

Journal article

Light From the hidden Sector. (2007)

M. Ahlers, DESY Forschung Hochenergiephysik, H. Gies, J. Jaeckel, J. Redondo, A. Ringwald

Journal article

The Need for Purely Laboratory-Based Axion-Like Particle Searches (2006)

Jaeckel, J., Masso, E., Redondo, J., Ringwald, A., Takahashi, F.

The PVLAS signal has led to the proposal of many experiments searching for light bosons coupled to photons. The coupling strength probed by these near future searches is, however, far from the...

Polarized light propagating in a magnetic field as a probe of millicharged fermions. (2006)

Gies, H., Jaeckel, J., Ringwald, A.

Possible extensions of the standard model of particle physics suggest the existence of particles with small, unquantized electric charge. Photon-initiated pair production of millicharged fermions in...

Accelerator Cavities as a Probe of Millicharged Particles (2006)

Gies, H., Jaeckel, J., Ringwald, A.

We investigate Schwinger pair production of millicharged fermions in the strong electric field of cavities used for particle accelerators. Even without a direct detection mechanism at hand,...

Photon Defects in Noncommutative Standard Model Candidates (2006)

Abel, S. A., Jaeckel, J., Khoze, V. V., Ringwald, A.

Restrictions imposed by gauge invariance in noncommutative spaces together with the effects of ultraviolet/infrared mixing lead to strong constraints on possible candidates for a noncommutative...

Effective Actions for Strongly Interacting Fermionic Systems (2005)

Jaeckel, J

We compare different non-perturbative methods for calculating the effective action for fermionic systems featuring bosonic bound states (BBS) and spontaneous symmetry breaking (SSB). In a purely...

Effective Actions for Strongly Interacting Fermionic Systems (2005)

Jaeckel, J

We compare different non-perturbative methods for calculating the effective action for fermionic systems featuring bosonic bound states (BBS) and spontaneous symmetry breaking (SSB). In a purely...

Loop corrections to scalar quintessence potentials. (2002)

Doran, M., Jaeckel, J.

The stability of scalar quintessence potentials under quantum fluctuations is investigated for both uncoupled models and models with a coupling to fermions. We find that uncoupled models are usually...

Loop Corrections to Scalar Quintessence Potentials (2002)

Doran, M., Jaeckel, J.

The stability of scalar quintessence potentials under quantum fluctuations is investigated for both uncoupled models and models with a coupling to fermions. We find that uncoupled models are usually...