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Article: Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer
Title | Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer |
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Authors | |
Keywords | Diffraction Forward physics Hadron-Hadron scattering (experiments) QCD |
Issue Date | 2020 |
Publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://www.springer.com/physics/particle+and+nuclear+physics/journal/13130 |
Citation | Journal of High Energy Physics, 2020, v. 2020 n. 2, article no. 42 How to Cite? |
Abstract | A dedicated sample of Large Hadron Collider proton-proton collision data at centre-of-mass energy √s = 8 TeV is used to study inclusive single diffractive dissociation, pp → X p. The intact final-state proton is reconstructed in the ATLAS ALFA forward spectrometer, while charged particles from the dissociated system X are measured in the central detector components. The fiducial range of the measurement is −4.0 < log10ξ < −1.6 and 0.016 < |t| < 0.43 GeV2, where ξ is the proton fractional energy loss and t is the squared four-momentum transfer. The total cross section integrated across the fiducial range is 1.59 ± 0.13 mb. Cross sections are also measured differentially as functions of ξ, t, and ∆η, a variable that characterises the rapidity gap separating the proton and the system X . The data are consistent with an exponential t dependence, dσ/dt ∝ eBt with slope parameter B = 7.65 ± 0.34 GeV−2. Interpreted in the framework of triple Regge phenomenology, the ξ dependence leads to a pomeron intercept of α(0) = 1.07 ± 0.09. |
Persistent Identifier | http://hdl.handle.net/10722/286277 |
ISSN | 2023 Impact Factor: 5.0 2023 SCImago Journal Rankings: 0.832 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | ATLAS collaboration | - |
dc.contributor.author | Lo, CY | - |
dc.contributor.author | Paredes Hernandez, D | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2020-08-31T07:01:40Z | - |
dc.date.available | 2020-08-31T07:01:40Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Journal of High Energy Physics, 2020, v. 2020 n. 2, article no. 42 | - |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://hdl.handle.net/10722/286277 | - |
dc.description.abstract | A dedicated sample of Large Hadron Collider proton-proton collision data at centre-of-mass energy √s = 8 TeV is used to study inclusive single diffractive dissociation, pp → X p. The intact final-state proton is reconstructed in the ATLAS ALFA forward spectrometer, while charged particles from the dissociated system X are measured in the central detector components. The fiducial range of the measurement is −4.0 < log10ξ < −1.6 and 0.016 < |t| < 0.43 GeV2, where ξ is the proton fractional energy loss and t is the squared four-momentum transfer. The total cross section integrated across the fiducial range is 1.59 ± 0.13 mb. Cross sections are also measured differentially as functions of ξ, t, and ∆η, a variable that characterises the rapidity gap separating the proton and the system X . The data are consistent with an exponential t dependence, dσ/dt ∝ eBt with slope parameter B = 7.65 ± 0.34 GeV−2. Interpreted in the framework of triple Regge phenomenology, the ξ dependence leads to a pomeron intercept of α(0) = 1.07 ± 0.09. | - |
dc.language | eng | - |
dc.publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://www.springer.com/physics/particle+and+nuclear+physics/journal/13130 | - |
dc.relation.ispartof | Journal of High Energy Physics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Diffraction | - |
dc.subject | Forward physics | - |
dc.subject | Hadron-Hadron scattering (experiments) | - |
dc.subject | QCD | - |
dc.title | Measurement of differential cross sections for single diffractive dissociation in √s = 8 TeV pp collisions using the ATLAS ALFA spectrometer | - |
dc.type | Article | - |
dc.identifier.email | Lo, CY: samuel3@hku.hk | - |
dc.identifier.email | Paredes Hernandez, D: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1007/JHEP02(2020)042 | - |
dc.identifier.scopus | eid_2-s2.0-85079500025 | - |
dc.identifier.hkuros | 313280 | - |
dc.identifier.volume | 2020 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | article no. 42 | - |
dc.identifier.epage | article no. 42 | - |
dc.identifier.isi | WOS:000515812400002 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 1029-8479 | - |