Technical University of Dortmund

About: Technical University of Dortmund is a education organization based out in Dortmund, Nordrhein-Westfalen, Germany. It is known for research contribution in the topics: Context (language use) & Large Hadron Collider. The organization has 13028 authors who have published 27666 publications receiving 615557 citations. The organization is also known as: Dortmund University & University of Dortmund.

Observation of the Doubly Charmed Baryon Ξcc

Abstract: A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is reconstructed in the decay mode pK-π+. The structure is consistent with originating from a weakly decaying particle, identified as the doubly charmed baryon Ξcc++. The difference between the masses of the Ξcc++ and Λc+ states is measured to be 1334.94±0.72(stat.)±0.27(syst.) MeV/c2, and the Ξcc++ mass is then determined to be 3621.40±0.72(stat.)±0.27(syst.)±0.14(Λc+) MeV/c2, where the last uncertainty is due to the limited knowledge of the Λc+ mass. The state is observed in a sample of proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb-1, and confirmed in an additional sample of data collected at 8 TeV.

Tip-enhanced Raman scattering

Abstract: Tip-enhanced Raman scattering (TERS) is a technique that provides molecular information on the nanometre scale. Using a nanometre-sized metal particle results in a strong signal enhancement and a lateral resolution similar to the dimensions of the particle. As TERS is in a way the ultimate SERS experiment, the theoretical background will be briefly discussed with respect to the unique features and the specific effects that occur when only a single nanoparticle is used as a probe. All the major parts of the instrument will be revealed and the specific advantages of the different instrumental set ups will be investigated with respect to the particular requirements of the sample. Selected examples ranging from material science to cell biological applications demonstrate the capabilities and the potential of TERS in this tutorial review.