2018-12-14 09:19 |
Elastic differential cross-section dσ /dt at √s =2.76 TeV and implications on the existence of a colourless 3-gluon bound state
/ Antchev, G. (Sofiya, Inst. Nucl. Res.) ; Aspell, P. (CERN) ; Atanassov, I. (Sofiya, Inst. Nucl. Res.) ; Avati, V. (AGH-UST, Cracow) ; Baechler, J. (CERN) ; Baldenegro Barrera, C. (Kansas U.) ; Berardi, V. (INFN, Bari ; Bari U.) ; Berretti, M. (Helsinki Inst. of Phys.) ; Bossini, E. (INFN, Siena ; Siena U.) ; Bottigli, U. (INFN, Siena ; Siena U.) et al.
/TOTEM
The proton-proton elastic differential cross section dσ /dt has been measured by the TOTEM exper- iment at √s = 2.76 TeV energy with Beta∗ = 11 m beam optics. The Roman Pots were inserted to 13 times the transverse beam size from the beam, which allowed to measure the differential cross- section of elastic scattering in a range of the squared four-momentum transfer (|t|) from 0.36 GeV2 to 0.74 GeV2. [...]
arXiv:1812.08610; CERN-EP-2018-341; TOTEM-2018-002.-
Geneva : CERN, 2018 - 17 p.
Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 1812.08610 - PDF; CERN-EP-2018-341 - PDF;
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2018-12-13 17:02 |
Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM
/ TOTEM Collaboration
The TOTEM collaboration has measured the elastic proton-proton differential cross section dσ/dt at √s = 13 TeV LHC energy using dedicated beta∗ = 90 m beam optics. The Roman Pot detectors were inserted to 10σ distance from the LHC beam, which allowed the measurement of the range [0.04 GeV**2;4 GeV**2] in four-momentum transfer squared |t|. [...]
arXiv:1812.08283; CERN-EP-2018-338; TOTEM-2018-003.-
Geneva : CERN, 2019-10-19 - 20 p.
- Published in : Eur. Phys. J. C 79 (2019) 861
Draft (restricted): PDF; Fulltext: CERN-EP-2018-338 - PDF; 1812.08283 - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
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2018-03-13 19:51 |
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2017-12-16 11:16 |
First determination of the ρ parameter at √s = 13 TeV – probing the existence of a colourless three-gluon bound state
/ Antchev, G. (CERN) ; Aspell, P. (CERN) ; Atanassov, I. (AGH-UST, Cracow ; CERN) ; Avati, V. (AGH-UST, Cracow ; CERN) ; Baechler, J. (CERN) ; Barrera, C.Baldenegro (Kansas U.) ; Berardi, V. (INFN, Bari ; Bari U.) ; Berretti, M. (Helsinki U.) ; Bossini, E. (INFN, Siena) ; Bottigli, U. (INFN, Siena) et al.
/TOTEM
The TOTEM experiment at the LHC has performed the first measurement at √s = 13 TeV of the ρ parameter, the real to imaginary ratio of the nuclear elastic scattering amplitude at t = 0, obtaining the following results: ρ = 0.09 ± 0.01 and ρ = 0.10 ± 0.01, depending on different physics assumptions and mathematical modelling. The unprecedented precision of the ρ measurement, combined with the TOTEM total cross-section measurements in an energy range larger than 10TeV (from 2.76 to 13TeV), has implied the exclusion of all the models classified and published by COMPETE. [...]
arXiv:1812.04732; CERN-EP-2017-335; CERN-EP-2017-335-v3.-
Geneva : CERN, 2019-09-23 - 28 p.
- Published in : 10.1140/epjc/s10052-019-7223-4
Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 1.PDF; Preprint: PDF; External link: Gizmodo article
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2017-12-06 18:16 |
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2017-01-21 07:23 |
Diamond Detectors for the TOTEM Timing Upgrade
/ TOTEM Collaboration
This paper describes the design and the performance of the timing detector developed by the TOTEM Collaboration for the Roman Pots (RPs) to measure the Time-Of-Flight (TOF) of the protons produced in central diffractive interactions at the LHC. The measurement of the TOF of the protons allows the determination of the longitudinal position of the proton interaction vertex and its association with one of the vertices reconstructed by the CMS detectors. [...]
arXiv:1701.05227; CERN-EP-2016-317; CERN-PH-EP-2016-317.-
Geneva : CERN, 2017-03-09 - 28 p.
- Published in : JINST 12 (2017) P03007
Fulltext: 10.1088_1748-0221_12_03_P03007 - PDF; 1701.05227 - PDF; Preprint: PDF;
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2015-12-14 17:47 |
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2015-03-20 18:37 |
Evidence for Non-Exponential Elastic Proton-Proton Differential Cross-Section at Low |t| and $\sqrt{s}$ = 8 TeV by TOTEM
/ Antchev, G. (Sofiya, Inst. Nucl. Res.) ; Aspell, P. (CERN) ; Atanassov, I. (CERN ; Sofiya, Inst. Nucl. Res.) ; Avati, V. (CERN) ; Baechler, J. (Case Western Reserve U. ; CERN) ; Berardi, V. (INFN, Bari) ; Berretti, M. (INFN, Pisa ; INFN, Siena) ; Bossini, E. (CERN) ; Bottigli, U. (INFN, Siena ; U. Siena (main)) ; Bozzo, M. (Genoa U. ; INFN, Genoa) et al.
The TOTEM experiment has made a precise measurement of the elastic proton-proton differential cross-section at the centre-of-mass energy $\sqrt{s}$ = 8TeV based on a high-statistics data sample obtained with the $\beta$* = 90m optics. Both the statistical and systematic uncertainties remain below 1%, except for the t-independent contribution from the overall normalisation. [...]
CERN-PH-EP-2015-083; arXiv:1503.08111; CERN-PH-EP-2015-083.-
Geneva : CERN, 2015 - 18 p.
- Published in : Nucl. Phys. B 899 (2015) 527-546
Article from SCOAP3: PDF; Draft (restricted): PDF; Elsevier Open Access article: PDF; Fulltext: PDF; Preprint: PDF; External link: Preprint
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2014-10-13 10:02 |
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2014-05-06 06:35 |
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