HEPData Search

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A low-mass dark matter search using ionization signals in XENON100

The XENON collaboration Aprile, E. ; Aalbers, J. ; Agostini, F. ; et al.

Phys.Rev.D 94 (2016) 092001, 2016.

Inspire Record 1463250 DOI 10.17182/hepdata.78548

We perform a low-mass dark matter search using an exposure of 30\,kg$\times$yr with the XENON100 detector. By dropping the requirement of a scintillation signal and using only the ionization signal to determine the interaction energy, we lowered the energy threshold for detection to 0.7\,keV for nuclear recoils. No dark matter detection can be claimed because a complete background model cannot be constructed without a primary scintillation signal. Instead, we compute an upper limit on the WIMP-nucleon scattering cross section under the assumption that every event passing our selection criteria could be a signal event. Using an energy interval from 0.7\,keV to 9.1\,keV, we derive a limit on the spin-independent WIMP-nucleon cross section that excludes WIMPs with a mass of 6\,GeV/$c^2$ above $1.4 \times 10^{-41}$\,cm$^2$ at 90\% confidence level.

1 data table

Table 1

WIMP exclusion limit on the spin-independent WIMP-nucleon scattering cross section at 90% confidence level.

Measurement of absorption and charge exchange of $\pi^+$ on carbon

The DUET collaboration Ieki, K. ; Pinzon Guerra, E.S. ; Berkman, S. ; et al.

Phys.Rev.C 92 (2015) 035205, 2015.

Inspire Record 1377940 DOI 10.17182/hepdata.73770

The combined cross section for absorption and charge exchange interactions of positively charged pions with carbon nuclei for the momentum range 200 MeV/c to 300 MeV/c have been measured with the DUET experiment at TRIUMF. The uncertainty is reduced by nearly half compared to previous experiments. This result will be a valuable input to existing models to constrain pion interactions with nuclei.

1 data table

Table 1

Summary of the measurements. In this table, $p_\pi$ is the momentum of pions at the fiber tracker.

The compact emulsion spectrometer.

Buontempo, S. ; Camilleri, L. ; Catanesi, M.G. ; et al.

Nucl.Instrum.Meth.A 457 (2001) 464-470, 2001.

Inspire Record 531752 DOI 10.17182/hepdata.49938

An emulsion spectrometer has been built and tested with pion beams in a 0.7 T magnetic field. A momentum resolution, Δ P / P =13%±1%, has been obtained for 5 and 10 GeV /c particles.

2 data tables

Table 1

No description provided.

Table 2

No description provided.