Simulation results for future measurements of electromagnetic proton form factors at $\overline{\rm P}$ ANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision with which the proton form factors can be determined is estimated. The signal channel $\bar{p}p\rightarrow e^{+}e^{-}$ is studied on the basis of two different but consistent procedures. The suppression of the main background channel, i.e. $\bar{p}p\rightarrow \pi^{+}\pi^{-}$ , is studied. Furthermore, the background versus signal efficiency, statistical and systematical uncertainties on the extracted proton form factors are evaluated using two different procedures. The results are consistent with those of a previous simulation study using an older, simplified framework. However, a slightly better precision is achieved in the PandaRoot study in a large range of momentum transfer, assuming the nominal beam conditions and detector performance.

Bar (unit)

Statistical error

Momentum transfer

SIGNAL (programming language)

Momentum (technical analysis)

10.1140/epja/i2016-16325-5

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Study of excited $$\varvec{\varXi }$$ baryons with the $$\overline{\text{ P }}$$ANDA detector

The European Physical Journal A (2021)

G. Barucca Fabrizio Davı́Giovanni Lancioni P. Mengucci Luigi Montalto

The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards $N^*$ and $\Delta$ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the $N^*$ and $\Delta$ spectra. The future antiproton experiment PANDA will provide direct access to final states containing a $\bar{\Xi}\Xi$ pair, for which production cross sections up to $\mu$b are expected in $\bar{p}p$ reactions. With a luminosity of $L=10^{31}\,cm^{-2}s^{-1}$ in the first phase of the experiment, the expected cross sections correspond to a production rate of $\sim 10^6$ events$/$day. With a nearly $4\pi$ detector acceptance, PANDA will thus be a hyperon factory. In this study, reactions of the type $\bar{p}p\rightarrow \bar{\Xi}^+ \Xi^{*-}$ as well as $\bar{p}p\rightarrow \bar{\Xi}^{*+} \Xi^{-}$ with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between $3\,\%$ and $5\,\%$. This allows high statistics data to be collected within a few weeks of data taking.

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10.1140/epja/s10050-021-00444-5

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Technical Design Report for the PANDA Endcap Disc DIRC

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

Fabrizio Davı́W. Erni B. Krusche M. Steinacher N. Walford

PANDA (anti-Proton ANnihiliation at DArmstadt) is planned to be one of the four main experiments at the future international accelerator complex FAIR (Facility for Antiproton and Ion Research) in Darmstadt, Germany. It is going to address fundamental questions of hadron physics and quantum chromodynamics using cooled antiproton beams with a high intensity and and momenta between 1.5 and 15 GeV/c. PANDA is designed to reach a maximum luminosity of 2x10^32 cm^2 s. Most of the physics programs require an excellent particle identification (PID). The PID of hadronic states at the forward endcap of the target spectrometer will be done by a fast and compact Cherenkov detector that uses the detection of internally reflected Cherenkov light (DIRC) principle. It is designed to cover the polar angle range from 5{\deg} to 22{\deg} and to provide a separation power for the separation of charged pions and kaons up to 3 standard deviations (s.d.) for particle momenta up to 4 GeV/c in order to cover the important particle phase space. This document describes the technical design and the expected performance of the novel PANDA Disc DIRC detector that has not been used in any other high energy physics experiment (HEP) before. The performance has been studied with Monte-Carlo simulations and various beam tests at DESY and CERN. The final design meets all PANDA requirements and guarantees suffcient safety margins.

Particle identification

Antiproton

DESY

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Technical design report for the $\overline{{\rm{P}}}\mathrm{ANDA}$ Barrel DIRC detector

Journal of Physics G Nuclear and Particle Physics (2018)

B. P. Singh W. Erni B. Krusche M. Steinacher N. K. Walford

This documents describes the technical design and the expected performance of the Barrel DIRC detector for the PANDA experiment. The Barrel DIRC will provide hadronic charged particle identification in the polar angle range of $22^\circ$ to $140^\circ$ for particle momenta between 0.5 GeV/c and 3.5 GeV/c. The design is based on the successful BaBar DIRC with several key improvements. The performance and system cost were optimized in detailed detector simulations and validated with full system prototypes using particle beams at GSI and CERN. The final design meets or exceeds the PID goal of clean $π/K$ separation with at least 3 standard deviations over the entire phase space of charged kaons in the Barrel DIRC.

Particle identification

Particle (ecology)

10.1088/1361-6471/aade3d

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Citations (38)

Study of doubly strange systems using stored antiprotons

Nuclear Physics A (2016)

B. Singh W. Erni B. Krusche M. Steinacher N. K. Walford

Antiproton

10.1016/j.nuclphysa.2016.05.014

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Citations (26)

Precision resonance energy scans with the PANDA experiment at FAIR

The European Physical Journal A (2019)

G. Barucca Fabrizio Davı́Giovanni Lancioni P. Mengucci Luigi Montalto

This paper summarises a comprehensive Monte Carlo simulation study for precision resonance energy scan measurements. Apart from the proof of principle for natural width and line shape measurements of very narrow resonances with PANDA, the achievable sensitivities are quantified for the concrete example of the charmonium-like X(3872) state discussed to be exotic, and for a larger parameter space of various assumed signal cross-sections, input widths and luminosity combinations. PANDA is the only experiment that will be able to perform precision resonance energy scans of such narrow states with quantum numbers of spin and parities that differ from $ J^{PC} = 1^{--}$.

SIGNAL (programming language)

Line (geometry)

10.1140/epja/i2019-12718-2

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Citations (31)

Równoległe łamanie haseł metodą słownikową w środowiskach MPI, OPENMP i CUDA

Czasopismo Techniczne. Nauki Podstawowe (2011)

J. Płażek Michał Podyma

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Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR

arXiv (Cornell University) (2016)

PANDA Collaboration B. K. Singh W. Erni B. Krusche M. Steinacher

Simulation results for future measurements of electromagnetic proton form factors at \PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision with which the proton form factors can be determined is estimated. The signal channel $\bar p p \to e^+ e^-$ is studied on the basis of two different but consistent procedures. The suppression of the main background channel, $\textit{i.e.}$ $\bar p p \to π^+ π^-$, is studied. Furthermore, the background versus signal efficiency, statistical and systematical uncertainties on the extracted proton form factors are evaluated using two different procedures. The results are consistent with those of a previous simulation study using an older, simplified framework. However, a slightly better precision is achieved in the PandaRoot study in a large range of momentum transfer, assuming the nominal beam conditions and detector performance.

Bar (unit)

SIGNAL (programming language)

Momentum (technical analysis)

Momentum transfer

Basis (linear algebra)

10.48550/arxiv.1606.01118

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Citations (4)

Selected Issues on Histograming on GPUs

Computing and Informatics / Computers and Artificial Intelligence (2016)

K. Korcyl J. J. Chwastowski J. Płażek Piotr Poznański

The contemporary large scale measuring systems in the real-time environment make extensive use of histogramming as a tool for the experimental data quality monitoring. The processing of a large number of data channels requires a suitable computing power where the graphical processors seem to be well suited. Histogramming operations run on the central and graphics processing units are discussed. Results of the performance measurements including various configurations of the allocation of the histograms in various parts of the memory of used devices are presented.

Data Processing

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Citations (1)