OLYMP

Latest additions:
2016-11-24
14:11
OpenAccess [PUBDB-2016-05585] Preprint/Report
; ; ; et al
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering Determined by the OLYMPUS Experiment
[DESY-16-217; arXiv:1611.04685] ddc:550
The OLYMPUS collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, $\it R_{2 \gamma}$, a direct measure of the contribution of hard two-photon exchange to the elastic cross section. In the OLYMPUS measurement, 2.01 GeV electron and positron beams were directed through a hydrogen gas target internal to the DORIS storage ring at DESY. [...]
OpenAccess: 2016_paper Physical review letters - Download fulltextPDF Download fulltextPDF (PDFA); 1611.04685v1(1) - Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-11-24
11:53
[PUBDB-2016-05579] Report/Journal Article
; ; ; et al
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering Determined by the OLYMPUS Experiment
[DESY 16-217] ddc:550
The OLYMPUS collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, $\it R_{2 \gamma}$, a direct measure of the contribution of hard two-photon exchange to the elastic cross section. In the OLYMPUS measurement, 2.01 GeV electron and positron beams were directed through a hydrogen gas target internal to the DORIS storage ring at DESY. [...]
Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
16:12
OpenAccess [PUBDB-2016-02987] Journal Article

The OLYMPUS Experiment at DESY
INTERNATIONAL WORKSHOP ON POSITRONS AT JEFFERSON LAB, JPOS09, Meeting locationNewport News (Virginia), US, 25 Mar 2009 - 27 Mar 20092009-03-252009-03-27
AIP conference proceedings 1160, 19 (2009) [10.1063/1.3232027]  GO
ddc:530
Recent determinations of the proton electric to magnetic elastic form factor ratio from polarization transfer measurements at Jefferson Lab indicate an unexpected and dramatic discrepancy with the elastic form factor ratio obtained using the Rosenbluth separation technique in unpolarized cross section measurements. This discrepancy has been explained as the effect of two-photon exchange beyond the usual one-photon exchange approximation in the calculation of the elastic electron-proton scattering cross section. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
15:37
OpenAccess [PUBDB-2016-02983] Journal Article/Contribution to a conference proceedings

EM Form Factors and OLYMPUS
13th International Workshop on Meson Production, Properties and Interaction, MESON2014, Meeting locationKRAKÓW, Poland, 29 May 2014 - 3 Jun 20142014-05-292014-06-03
The European physical journal / Web of Conferences 81, 01006 - (2014) [10.1051/epjconf/20148101006]  GO
ddc:530
The elastic form factors of the nucleon characterize the distributions of charge and magnetization in momentum space and are important input for calculations of strong interaction phenomena and nuclear structure. The dramatic discrepancy in the observed ratio of elastic proton form factors between the Rosenbluth separation and polarization transfer methods has invoked numerous theoretical and experimental investigations. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
15:20
OpenAccess [PUBDB-2016-02981] Journal Article
; ; ; et al
The OLYMPUS Internal Hydrogen Target
ddc:530
An internal hydrogen target system was developed for the OLYMPUS experiment at DESY, in Hamburg, Germany. The target consisted of a long, thin-walled, tubular cell within an aluminum scattering chamber. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
14:56
OpenAccess [PUBDB-2016-02977] Journal Article
; ; ; et al
Measurement and tricubic interpolation of the magnetic field for the OLYMPUS experiment
ddc:530
The OLYMPUS experiment used a 0.3T toroidal magnetic spectrometer to measure the momenta of outgoing charged particles. In order to accurately determine particle trajectories, knowledge of the magnetic field was needed throughout the spectrometer volume. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
14:21
Embargoed OpenAccess [PUBDB-2016-02975] Journal Article
; ; ; et al
Design and Performance of a Lead Fluoride Detector as a Luminosity Monitor
ddc:530
Precise luminosity measurements for the OLYMPUS two-photon exchange experiment at DESY were performed by counting scattering events with alternating beams of electrons and positrons incident on atomic electrons in a gaseous hydrogen target. Final products of M$\phi$ller, Bhabha, and pair annihilation interactions were observed using a pair of lead fluoride ($PbF_{2}$) Cherenkov calorimeters with custom housings and electronics, adapted from a system used by the A4 parity violation experiment at MAMI. [...]
Published on 2016-04-20. Available in OpenAccess from 2017-04-20.: Download fulltextPDF; Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
14:02
OpenAccess [PUBDB-2016-02974] Conference Presentation

OLYMPUS
Lepton-Nucleus Scattering XIV, ELBA XIV, Meeting locationIsola d'Elba, MIT, Italy, 27 Jun 2016 - 1 Jul 20162016-06-272016-07-01
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
13:54
OpenAccess [PUBDB-2016-02972] Poster

The OLYMPUS Experiment at DESY
International conference on Precision Physics of Simple Atomic Systems, PSAS'2016, Meeting locationJerusalem, Israel, 22 May 2016 - 27 May 20162016-05-222016-05-27
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2016-08-11
11:09
OpenAccess [PUBDB-2016-02965] Conference Presentation

Experimental Status of Two Photon Exchange Effects
Probing transverse nucleon structure at high momentum transfer, Meeting locationTrento, ECT, Hampton University, Jefferson Lab, Italy, 18 Apr 2016 - 22 Apr 20162016-04-182016-04-22
OpenAccess: Download fulltextPDF; External link: Download fulltextFulltext

Detailed record - Similar records