Measurement of the cross section for diffractive deep-inelastic scattering with a leading proton at HERA

Aaron, F. D.; Alexa, C.; Andreev, V.; Backović, S.; Baghdasaryan, A.; Barrelet, E.; Bartel, W.; Begzsuren, K.; Belousov, A.; Bizot, J.C.; Boudry, V.; Božović-Jelisavc̆ić, I.; Braciník, J.; Brandt, G.; Brinkmann, Martin; Brisson, V.; Britzger, D.; Bruncko, D.; Bunyatyan, A.; Buschhorn, G.; Bystritskaya, L.; Campbell, A. J.; Avila, K. B. Cantun; Ceccopieri, Federico Alberto; C̆erný, K.; Černý, V.; Chekelian, V.; Cholewa, A.; Contreras, J. G.; Coughlan, J. A.; Cvach, J.; Dainton, J. B.; Daum, K.; Deák, Michal; Delcourt, B.; Delvax, J.; Wolf, E. A. De; Diaconu, C.; Dobre, M.; Dodonov, V.; Dossanov, A.; Dubak, A.; Eckerlin, G.; Efremenko, V.; Egli, S.; Eliseev, A.; Elsen, E.; Favart, L.; Fedotov, A.; Felst, R.; Feltesse, J.; Ferencei, J.; Fischer, D.; Fleischer, M.; Fomenko, A.; Gabathuler, E.; Gayler, J.; Ghazaryan, S.; Glazov, A.; Goerlich, L.; Gogitidze, N.; Gouzevitch, M.; Grab, C.; Grebenyuk, A.; Greenshaw, T.; Grell, B. R.; Grindhammer, G.; Habib, S.; Haidt, D.; Helebrant, C.; Henderson, R. C. W.; Hennekemper, E.; Henschel, H.; Herbst, M.; Herrera, G.; Hildebrandt, M.; Hiller, K. H.; Hoffmann, D.; Horisberger, R.; Hreus, T.; Huber, Florian; Jacquet, M.; Janssen, X.; Jönsson, L.; Jung, A. W.; Jung, H.; Kapichine, M.; Katzy, J.; Kenyon, I. R.; Kiesling, C.; Klein, M.; Kleinwort, C.; Kluge, T.; Knutsson, A.; Kogler, R.; Kostka, P.; Kraemer, M.; Kretzschmar, J.; Kropivnitskaya, A.; Krüger, K.; Kutak, Krzysztof; Landon, M. P. J.; Lange, W.; Laštovička-Medin, G.; Laycock, P.; Lebedev, A.; Lendermann, V.; Levonian, S.; Lipka, K.; List, B.; List, Jenny; Loktionova, N.; López-Fernández, R.; Lubimov, V.; Makankine, A.; Malinovski, E.; Marage, P.; Martyn, H. U.; Maxfield, S. J.; Mehta, A.; Meyer, Andreas Bernhard; Meyer, H.; Meyer, J.; Mikocki, S.; Milcewicz-Mika, I.; Moreau, F.; Morozov, A.; Morris, J. V.; Mozer, M. U.; Mudrinic, M.; Müller, K.; Naumann, T.; Newman, P. R.; Niebuhr, C.; Nikiforov, A.; Nikitin, D.; Nowak, G.; Nowak, K.; Olsson, J. E.; Osman, S.; Ozerov, D.; Pahl, P.; Palichik, V.; Panagoulias, I.; Pandurović, M.; Papadopoulou, Th. D.; Pascaud, C.; Patel, G. D.; Pérez, E.; Petrukhin, A.; Pićurić, I.; Piec, S. M.; Pirumov, H.; Pitzl, D.; Plačakytė, R.; Pokorny, B.; Polifka, R.; Povh, Bogdan; Radescu, V.; Raičević, N.; Ravdandorj, T.; Reimer, P.; Rizvi, E.; Robmann, P.; Roosen, R.; Rostovtsev, A.; Rotaru, M.; Tabasco, J. E. Ruiz; Rusakov, S. V.; Šálek, D.; Sankey, D. P. C.; Sauter, M.; Sauvan, E.; Schmitt, S.; Schoeffel, L.; Schöning, A.; Schultz-Coulon, Hans-Christian; Sefkow, F.; Shtarkov, L. N.; Shushkevich, S.; Sloan, T.; Smiljanić, I.; Soloviev, Y.; Sopicki, P.; South, D.; Spaskov, V.; Specka, A.; Staykova, Z.; Steder, M.; Stella, B.; Stoicea, G.; Straumann, U.; Sunar, D.; Sýkora, T.; Thompson, G.; Thompson, P. D.; Toll, T.; Tran, T. H.; Traynor, D.; Truöl, P.; Tsakov, I.; Tseepeldorj, B.; Turnau, J.; Urban, K.; Valkárová, A.; Vallée, C.; Mechelen, P. Van; Trevino, A. Vargas; Vazdik, Y.; Driesch, M. von den; Wegener, D.; Wünsch, E.; Žáček, J.; Zálešâk, J.; Zhang, Z.; Zhokin, A.; Zohrabyan, H.; Zomer, F.

doi:10.1140/epjc/s10052-011-1578-5

Cited by 45 publications

(29 citation statements)

References 49 publications

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“…The largest resulting uncertainty of 3% arises from the variation of the shape in p * T,1 . The shape of the distribution in t is varied within the experimental uncertainty on the t-slope [48] by applying a weight of e ±t in MC, which translates into an uncertainty on the integrated dijet cross section of 1 %. The integrated cross section uncertainty due to the model dependence of the measurement is of the order of 5 %.…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

Andreev

Baghdasaryan

Begzsuren

et al. 2015

J. High Energ. Phys.

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A measurement is presented of single-and double-differential dijet cross sections in diffractive deep-inelastic ep scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb −1 . The investigated phase space is spanned by the photon virtuality in the range of 4 < Q 2 < 100 GeV 2 and by the fractional proton longitudinal momentum loss x IP < 0.03. The resulting cross sections are compared with next-to-leading order QCD predictions based on diffractive parton distribution functions and the value of the strong coupling constant is extracted.

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Section: Systematic Uncertaintiesmentioning

confidence: 99%

Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

Andreev

Baghdasaryan

Begzsuren

et al. 2015

J. High Energ. Phys.

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“…For the comparison with the measurement, the NLO QCD predictions are scaled down by a factor of 0.83 [60] to account for the contributions from proton dissociation (M Y < 1.6 GeV) absent in the current analysis but included in the extraction of the H12006 Fit-B DPDF set from the inclusive data [4].…”

Section: Jhep05(2015)056mentioning

confidence: 99%

Diffractive dijet production with a leading proton in ep collisions at HERA

Andreev¹,

Baghdasaryan²,

Begzsuren³

et al. 2015

J. High Energ. Phys.

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Abstract:The cross section of the diffractive process e + p → e + Xp is measured at a centre-of-mass energy of 318 GeV, where the system X contains at least two jets and the leading final state proton p is detected in the H1 Very Forward Proton Spectrometer. The measurement is performed in photoproduction with photon virtualities Q 2 < 2 GeV 2 and in deep-inelastic scattering with 4 GeV 2 < Q 2 < 80 GeV 2 . The results are compared to nextto-leading order QCD calculations based on diffractive parton distribution functions as extracted from measurements of inclusive cross sections in diffractive deep-inelastic scattering.

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“…This measurement used samples of diffractive DIS data at a center-of-mass energy of √ s = 318 GeV. The combination by H1 and ZEUS Col- laborations is based on the cross sections measured with the ZEUS LPS 1 [53], ZEUS LPS 2 [54], H1 FPS HERA I [55] and finally the H1 FPS HERA II [56] data sets.…”

Section: Diffractive Dis Data Setsmentioning

confidence: 99%

“…Hence, one need to consider a global normalization factor to account this correction. The extrapolations for these two distinct range of t have been performed by considering an exponential t dependence of the inclusive diffractive DIS cross sections, using the H1 default value of exponential slope parameter b = 6 1/GeV 2 [21,56]. Therefore, our analysis has been carried out by considering the above corrections as well as the pre-selection kinematical cuts applied on the analyzed data sets.…”

Section: Diffractive Dis Data Setsmentioning

confidence: 99%

Phenomenology of diffractive DIS in the framework of fracture functions and determination of diffractive parton distribution functions

Khanpour

2019

Phys. Rev. D

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The goal of this study is to determine a set of diffractive parton distribution function (diffractive PDFs) from a QCD analysis of all available and up-to-date diffractive deep inelastic scattering (diffractive DIS) data sets from HERA ep collider, including the most recent H1 and ZUES combined inclusive diffractive cross section measurements. This extraction of diffractive PDFs, referred to as HK19-DPDF, is performed at next-to-leading (NLO) and next-to-next-to-leading (NNLO) in perturbative QCD. This new determination of diffractive PDFs is based on the fracture functions methodology, a QCD framework designed to provide a statistically sound representation of diffractive DIS processes. Heavy quark contributions to the diffractive DIS are considered within the framework of the FONLL general mass variable flavor number scheme (GM-VFNS) and the "Hessian approach" is used to determine the uncertainties of diffractive PDFs. We discuss the novel aspects of the approach used in the present analysis, namely an optimized and flexible parametrization of the diffractive PDFs as well as a strategy based on the fully factorization theorem for diffractive hard processes. We then present the diffractive PDFs, and discuss the fit quality and the stability upon variations of the kinematic cuts and the fitted data sets. We find that the systematic inclusion of higher-order QCD corrections could improves the description of the data. We compare the extracted sets of diffractive PDFs based on the fracture functions approach to other recent sets of diffractive PDFs, finding in general very good agreements.

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Measurement of the cross section for diffractive deep-inelastic scattering with a leading proton at HERA

Cited by 45 publications

References 49 publications

Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA

Diffractive dijet production with a leading proton in ep collisions at HERA

Phenomenology of diffractive DIS in the framework of fracture functions and determination of diffractive parton distribution functions

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