121 citations · 563 across the 21 of their papers we have counts for
21 papers
Support of Evidence for Neutrinoless Double Beta Decay
H. V. Klapdor-Kleingrothaus, A. Dietz, I. V. Krivosheina +2
Indirect support for the evidence of neutrinoless double beta decay reported recently, is obtained by analysis of other Ge double beta experiments, which yield independent informat…
First 10 kg of Naked Germanium Detectors in Liquid Nitrogen installed in the GENIUS-Test-Facility
H. V. Klapdor-Kleingrothaus, O. Chkvorez, I. V. Krivosheina +2
The first four naked high purity Germanium detectors were installed successfully in liquid nitrogen in the GENIUS-Test-Facility (GENIUS-TF) in the GRAN SASSO Underground Laboratory…
Consequences of neutrinoless double beta decay and WMAP
H. V. Klapdor-Kleingrothaus, U. Sarkar
Observation of the neutrinoless double beta decay ($\0n$) has established that there is lepton number violation in nature and the neutrino masses are Majorana in nature. It also gi…
First Evidence for Neutrinoless Double Beta Decay
H. V. Klapdor-Kleingrothaus
Double beta decay is indispensable to solve the question of the neutrino mass matrix together with oscillation experiments. Recent analysis of the most sensitive experiment sin…
Neutrinoless Double Beta Decay from Singlet Neutrinos in Extra Dimensions
G. Bhattacharyya, H. V. Klapdor-Kleingrothaus, H. Päs +1
We study the model-building conditions under which a sizeable -decay signal to the recently reported level of~0.4 eV is due to Kaluza--Klein singlet neutrinos in theories wit…
Baryon and Lepton Number Violation with Scalar Bilinears
H. V. Klapdor-Kleingrothaus, E. Ma, U. Sarkar
We consider all possible scalar bilinears, which couple to two fermions of the standard model. The various baryon and lepton number violating couplings allowed by these exotic scal…
Search for Dark Matter by GENIUS-TF and GENIUS
H. V. Klapdor-Kleingrothaus
The new project GENIUS will cover a wide range of the parameter space of predictions of SUSY for neutralinos as cold dark matter. Together with DAMA it will be the only experiment…
Majorana neutrinos with split fermions in extra dimensions
H. V. Klapdor-Kleingrothaus, U. Sarkar
We propose new solutions to the neutrino mass problem in theories with large extra dimensions in a thick wall scenario. It has recently been argued that our 3-brane could be a thic…
GENIUS - A New Facility of Non-Accelerator Particle Physics
H. V. Klapdor-Kleingrothaus
The GENIUS (\underline {Ge}rmanium in Liquid \underline {Ni}trogen \underline {U}nderground \underline {S}etup) project has been proposed in 1997 \cite{KK-BEY97} as first third gen…
Double-beta decay matrix elements for Ge-76
S. Stoica, H. V. Klapdor-Kleingrothaus
Double-beta decay matrix elements (ME) for are calculated with different quasi random phase approximation (QRPA)-based methods. First, the ME for the two-neutrino mode ar…
Lepton number violating interactions and their effects on neutrino oscillation experiments
Sven Bergmann, H. V. Klapdor-Kleingrothaus, Heinrich Päs
Mixing between bosons that transform differently under the standard model gauge group, but identically under its unbroken subgroup, can induce interactions that violate the total l…
Confronting Dilaton-exchange gravity with experiments
H. V. Klapdor-Kleingrothaus, H. Päs, U. Sarkar
We study the experimental constraints on theories, where the equivalence principle is violated by dilaton-exchange contributions to the usual graviton-exchange gravity. We point ou…
Effects of New Gravitational Interactions on Neutrinoless Double Beta Decay
H. V. Klapdor--Kleingrothaus, H. Päs, U. Sarkar
It has recently been proposed that violations of Lorentz invariance or violations of the equivalence principle can be constrained from the non-observation of neutrinoless double be…
Weak Interaction Rates Of sd-Shell Nuclei In Stellar Environment Calculated in the Proton-Neutron Quasiparticle Random Phase Approximation
J. -U. Nabi, H. V. Klapdor-Kleingrothaus
Allowed weak interaction rates for sd-shell nuclei in stellar environment are calculated using a generalized form of proton-neutron quasiparticle RPA model with separable Gamow-Tel…
High-purity germanium detector ionization pulse shapes of nuclear recoils, gamma interactions and microphonism
L. Baudis, J. Hellmig, H. V. Klapdor-Kleingrothaus +3
Nuclear recoil measurements with high-purity Germanium detectors are very promising to directly detect dark matter candidates. The main background sources in such experiments are n…
Improved bounds on SUSY accompanied neutrinoless double beta decay
H. Päs, M. Hirsch, H. V. Klapdor-Kleingrothaus
Neutrinoless double beta decay induced by light Majorana neutrino exchange between two decaying nucleons with squark/slepton exchange inside one and W exchange inside the other nuc…
A general parametrization for the long-range part of neutrinoless double beta decay
H. Päs, M. Hirsch, S. G. Kovalenko +1
Double beta decay has been proven to be a powerful tool to constrain violating physics beyond the standard model. We present a representation for the long-range part of the g…
A Xenon Solar Neutrino Detector
A. Sh. Georgadze, H. V. Klapdor-Kleingrothaus, H. Päs +1
The neutrino capture by Xe with a threshold at 352 keV as reaction to detect solar neutrinos is examined. The most important feature of this process is its high sensitivity…
R-parity Conserving Supersymmetry, Neutrino Mass and Neutrinoless Double Beta Decay
M. Hirsch, H. V. Klapdor-Kleingrothaus, S. G. Kovalenko
We consider contributions of R-parity conserving softly broken supersymmetry (SUSY) to neutrinoless double beta ($\znbb$) decay via the (B-L)-violating sneutrino mass term. The lat…
Bounds on new Majoron models from the Heidelberg-Moscow-Experiment
A. Balysh
In recent years several new Majoron models were invented to avoid shortcomings of the classical models while leading to observable decay rates in double beta experiments. We give t…
New Supersymmetric Contributions to Neutrinoless Double Beta Decay.
M. Hirsch, H. V. Klapdor-Kleingrothaus, S. G. Kovalenko
The neutrinoless double beta ($\znbb$) decay is analyzed within the Minimal Supersymmetric Standard Model with explicit R-parity violation (\rp MSSM). We have found new supersymmet…