Measurement of beauty production in deep inelastic scattering at HERA

Chekanov, S.; Derrick, M.; Loizides, J. H.; Magill, S.; Miglioranzi, S.; Musgrave, B.; Repond, J.; Yoshida, R.; Mattingly, M.C.K.; Pavel, N.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Romeo, G. Cara; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; Pasquale, S. De; Giusti, P.; Iacobucci, G.; Margotti, A.; Montanari, A.; Nania, R.; Palmonari, F.; Pesci, A.; Rinaldi, L.; Sartorelli, G.; Zichichi, A.; Aghuzumtsyan, G.; Bartsch, D.; Brock, I.; Goers, S.; Hartmann, H.; Hilger, E.; Irrgang, P.; Jakob, H.‐P.; Kind, O. M.; Meyer, U.; Paul, E.; Rautenberg, J.; Renner, R.; Stifutkin, A.; Tandler, J.; Voss, K.; Wang, Meng; Bailey, D. C.; Brook, N. H.; Cole, J. E.; Heath, G. P.; Namsoo, T.; Robins, S. A.; Wing, M.; Capua, M.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Jy, Kim; Lim, I. T.; Ma, K.J.; Pac, M. Y.; Helbich, M.; Ye, Ning; Ren, Z.; Schmidke, W. B.; Sciulli, F.; Chwastowski, J. J.; Eskreys, A.; Figiel, J.; Galas, A.; Olkiewicz, K.; Stopa, P.; Zawiejski, L.; Adamczyk, L.; Bołd, T.; Grab, C.; Kisielewska, D.; Kowal, A.M.; Kowal, M.; Łukasik, J.; Przybycień, M.; Suszycki, L.; Szuba, D.; Szuba, J.; Kotański, A.; Słomiński, W.; Adler,; Behrens, U.; Bloch, I.; Borras, K.; Chiochia,; Dannheim, D.; Drews, G.; Fourletova, J.; Fricke, U.; Geiser, A.; Göttlicher, P.; Gutsche, O.; Haas, T.; Hain, W.; Hillert, S.; Horn, C.; Kahle, B.; Kötz, U.; Kowalski, H.; Kramberger, G.; Labes, H.; Lelas, D.; Lim, H.; Löhr, B.; Mankel, R.; Melzer-Pellmann, I.-A.; Nguyen, C.N.; Notz, D.; Nuncio-Quiroz, A. E.; Polini, A.; Raval, A.; Schneekloth, U.; Stößlein, U.; Wolf, G.; Youngman, C.; Zeuner, Wolfram Dietrich; Schlenstedt, S.; Barbagli, G.; Gallo, E.; Genta, C.; Pelfer, P. G.; Bamberger, A.; Benen, A.; Karstens, F.; Dobur, D.; Vlasov, N.; Bussey, P.; Doyle, A. T.; Ferrando, J.; Hamilton, J. H.; Hanlon, S.; Saxon, D. H.; Skillicorn, I. O.; Gialas, I.; Carli, T.; Gosau, T.; Holm, U.; Krumnack, N.; Lohrmann, E.; Milite, M.; Salehi, H.; Schleper, P.; Schörner-Sadenius, T.; Stonjek, S.; Wichmann, K.; Wick, K.; Ziegler, A.; Collins-Tooth, C.; Foudas, C.; Gonçalo, R.; Long, K.; Tapper, A.; Cloth, P.; Filges, D.; Kataoka, M.; Nagano, K.; Tokushuku, K.; Yamada, S.; Yamazaki, Y.; Barakbaev, A. N.; Boos, E.G.; Pokrovskiy, N. S.; Zhautykov, B.O.; Son, D. C.; Favereau, J. de; Piotrzkowski, K.; Barreiro, F.; Glasman, C.; González, O.; Labarga, L.; Peso, J. Del; Tassi, E.; Terrón, J.; Zambrana, M.; Barbi, M.; Corriveau, F.; Gliga, Sebastian; Lainesse, J.; Padhi, S.; Stairs, D. G.; Walsh, R.; Tsurugai, T.; Антонов, А.; Данилов, П. А.; Dolgoshein, B. A.; Gladkov, D.; Sosnovtsev,; Suchkov, S.; Dementiev, R. K.; Ermolov, P.; Katkov,; Khein, L. A.; Korzhavina, I. A.; Kuzmin, V. A.; Levchenko, B. B.; Lukina, O. Yu.; Proskuryakov, A.S.; Shcheglova, L.M.; Zotkin, S. A.; Abt, I.; Büttner, C.; Caldwell, A.; Liu, X; Sutiak, J.; Coppola, N.; Grigorescu, G.; Grijpink, S.J.L.A.; Keramidas, A.; Koffeman, E.; Kooijman, P.; Maddox, E.; Pellegrino, A.; Schagen, S.E.S.; Tiecke, H.; Vázquez, M.; Wiggers, L.; Wolf, E. de; Brümmer, N.; Bylsma, B.; Durkin, L. S.; Ling, T. Y.; Cooper-Sarkar, A. M.; Cottrell, A.; Devenish, R.C.E.; Foster, B.; Grzelak, G.; Gwenlan, C.; Kohno, T.; Patel, Shruti; Straub, P.B.; Walczak, R.; Bellan, P.; Bertolin, A.; Brugnera, R.; Carlin, R.; Corso, F. Dal; Dusini, S.; Garfagnini, A.; Limentani, S.; Longhin, A.; Parenti, A.; Posocco, M.; Stančo, L.; Turcato, M.; Heaphy, E.A.; Metlica, F.; Oh, B.Y.; Whitmore, J. J.; Iga, Y.; D’Agostini, G.; Marini, G.; Nigro, A.; Cormack, C. M.; Hart, J. C.; McCubbin, N. A.; Heusch, C. A.; Park, IH; Abramowicz, H.; Gabareen, A. M.; Kananov, S.; Kreisel, A.; Levy, A.; Kuze, M.; Fusayasu, T.; Kagawa, S.; Tawara, T.; Yamashita, T.; Hamatsu, R.; Hirose, T.; Inuzuka, M.; Kaji, Hiroshi; Kitamura, S.; Matsuzawa, K.; Costa, M.; Ferrero, M. I.; Monaco,; Sacchi, R.; Solano, A.; Arneodo, M.; Ruspa, M.; Koop, T.; Martin, J. F.; Mirea, A.; Butterworth, J. M.; Hall-Wilton, R.; Jones, T. W.; Lightwood,; Sutton,; Targett-Adams, C.; Ciborowski, J.; Ciesielski, R.; Łużniak, P.; Nowak, R. J.; Pawlak, J. M.; Sztuk, J.; Tymieniecka, T.; Ukleja, A.; Ukleja, J.; Żarnecki, A. F.; Adamus, M.; Pluciński, P.; Eisenberg, Y.; Hochman, D.; Karshon, U.; Riveline, M.; Everett, A.; Gladilin, L. K.; Kçira, D.; Lammers, S.; Li, L; Reeder, D.; Rosin, M.; Ryan, P.; Savin, A.A.; Smith, W. H.; Dhawan, S.; Bhadra, S.; Catterall, C. D.; Fourletov, S.; Hartner, G.; Menary, S.; Soares, M. S.; Standage, J.

doi:10.1016/j.physletb.2004.08.048

Cited by 42 publications

(6 citation statements)

References 61 publications

Supporting

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“…However, the observed cross-sections at the Tevatron (Run I) are larger than QCD predictions [204][205][206][207][208][209][210][211] which is confirmed by Run II data. Similar effects are observed in γ p collisions at HERA [212][213][214][215][216][217][218] and in γ γ interactions at LEP [219,220].…”

Section: Inclusive B-quark Productionsupporting

confidence: 74%

CMS Physics Technical Design Report, Volume II: Physics Performance

Bayatian¹,

Chatrchyan²,

Hmayakyan³

et al. 2007

J. Phys. G: Nucl. Part. Phys.

715

161

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CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider (LHC). It currently involves more than 2000 physicists from more than 150 institutes and 37 countries. The LHC will provide extraordinary opportunities for particle physics based on its unprecedented collision energy and luminosity when it begins operation in 2007.The principal aim of this report is to present the strategy of CMS to explore the rich physics programme offered by the LHC. This volume demonstrates the physics capability of the CMS experiment. The prime goals of CMS are to explore physics at the TeV scale and to study the mechanism of electroweak symmetry breaking-through the discovery of the Higgs particle or otherwise. To carry out this task, CMS must be prepared to search for new particles, such as the Higgs boson or supersymmetric partners of the Standard Model particles, from the start-up of the LHC since new physics at the TeV scale may manifest itself with modest data samples of the order of a few fb −1 or less. The analysis tools that have been developed are applied to study in great detail and with all the methodology of performing an analysis on CMS data specific benchmark processes upon which to gauge the performance of CMS. These processes cover several Higgs boson decay channels, the production and decay of new particles such as Z and supersymmetric particles, B s production and processes in heavy ion collisions. The simulation of these benchmark processes includes subtle effects such as possible detector miscalibration and misalignment. Besides these benchmark processes, the physics reach of CMS is studied for a large number of signatures arising in the Standard Model and also in theories beyond the Standard Model for integrated luminosities ranging from 1 fb −1 to 30 fb −1 . The Standard Model processes include QCD, B-physics, diffraction, detailed studies of the top quark properties, and electroweak physics topics such as the W and Z 0 boson properties. The production and decay of the Higgs particle is studied for many observable decays, and the precision with which the Higgs boson properties can be derived is determined. About ten different supersymmetry benchmark points are analysed using full simulation. The CMS discovery reach is evaluated in the SUSY parameter space covering a large variety of decay signatures.

show abstract

Section: Inclusive B-quark Productionsupporting

confidence: 74%

CMS Physics Technical Design Report, Volume II: Physics Performance

Bayatian¹,

Chatrchyan²,

Hmayakyan³

et al. 2007

J. Phys. G: Nucl. Part. Phys.

715

161

View full text Add to dashboard Cite

show abstract

“…The Rapgap prediction for beauty production was multiplied by two, in agreement with a previous ZEUS measurement of beauty production in DIS [56]. The subtraction of the b-quark contribution reduced the measured cross sections by 2 − 3% for the D + and about 1% for the Λ + c .…”

Section: Jhep11(2010)009supporting

confidence: 77%

Measurement of D + and Λ c + production in deep inelastic scattering at HERA

Abramowicz

Grigorescu

Keramidas

et al. 2010

J. High Energ. Phys.

Self Cite

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Charm production in deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 120 pb −1 . The hadronic decay channels D + → K 0 S π + , Λ + c → pK 0 S and Λ + c → Λπ + , and their charge conjugates, were reconstructed. The presence of a neutral strange hadron in the final state reduces the combinatorial background and extends the measured sensitivity into the low transverse momentum region. The kinematic range is 0 < p T (D + , Λ + c ) < 10 GeV, |η(D + , Λ + c )| < 1.6, 1.5 < Q 2 < 1000 GeV 2 and 0.02 < y < 0.7. Inclusive and differential cross sections for the production of D + mesons are compared to next-to-leading-order QCD predictions. The fraction of c quarks hadronising into Λ + c baryons is extracted.

show abstract

“…For a broad overview see Refs. [44,46,49,51,[69][70][71][72][73][74][75] and references therein and the experimental analyses performed by the H1 and ZEUS collaborations [76][77][78][79][80][81][82].…”

Section: Heavy Quark Production In Lepton-hadron Collisionsmentioning

confidence: 99%

b-initiated processes at the LHC: a reappraisal

Maltoni

Ridolfi

Ubiali

2012

J. High Energ. Phys.

126

127

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Several key processes at the LHC in the standard model and beyond that involve $b$ quarks, such as single-top, Higgs, and weak vector boson associated production, can be described in QCD either in a 4-flavor or 5-flavor scheme. In the former, $b$ quarks appear only in the final state and are typically considered massive. In 5-flavor schemes, calculations include $b$ quarks in the initial state, are simpler and allow the resummation of possibly large initial state logarithms of the type $\log \frac{{\cal Q}^2}{m_b^2}$ into the $b$ parton distribution function (PDF), ${\cal Q}$ being the typical scale of the hard process. In this work we critically reconsider the rationale for using 5-flavor improved schemes at the LHC. Our motivation stems from the observation that the effects of initial state logs are rarely very large in hadron collisions: 4-flavor computations are pertubatively well behaved and a substantial agreement between predictions in the two schemes is found. We identify two distinct reasons that explain this behaviour, i.e., the resummation of the initial state logarithms into the $b$-PDF is relevant only at large Bjorken $x$ and the possibly large ratios ${\cal Q}^2/m_b^2$'s are always accompanied by universal phase space suppression factors. Our study paves the way to using both schemes for the same process so to exploit their complementary advantages for different observables, such as employing a 5-flavor scheme to accurately predict the total cross section at NNLO and the corresponding 4-flavor computation at NLO for fully exclusive studies

show abstract

Measurement of beauty production in deep inelastic scattering at HERA

Cited by 42 publications

References 61 publications

CMS Physics Technical Design Report, Volume II: Physics Performance

CMS Physics Technical Design Report, Volume II: Physics Performance

Measurement of D + and Λ c + production in deep inelastic scattering at HERA

b-initiated processes at the LHC: a reappraisal

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