相关论文: Beauty Production at HERA, proceedings for Moriond…

H1 and ZEUS Results on Beauty Production

The H1 and ZEUS experiments are measuring beauty production in ep collisions at HERA. The b quark mass provides a hard scale which allows a dedicated test of perturbative QCD. The latest results in photoproduction and deep inelastic…

高能物理 - 实验 · 物理学 2007-05-23 Isabell-Alissandra Melzer-Pellmann

Latest measurements of beauty quark production at HERA

The latest results of beauty quark production measurements at HERA are presented. New measurements have been obtained both in the photoproduction and the deep inelastic scattering regimes. The results were compared with the NLO QCD…

高能物理 - 实验 · 物理学 2009-11-07 V. Chiochia

Beauty Quark Production in Deep Inelastic Scattering at HERA

The measurement of the beauty quark production cross section in deep inelastic scattering with the ZEUS detector at HERA is presented. The cross section for beauty quarks, measured in the kinematic range $Q^2 > 2$ GeV$^2$ and $0.05 < y <…

高能物理 - 实验 · 物理学 2007-05-23 V. Chiochia

Studies of Beauty at H1 and ZEUS

Recent measurements of beauty production in ep collisions at HERA are presented. The results were obtained using data from the experiments H1 and ZEUS from the years 1996 to 2000 (HERA I). An outlook is given for analysis on data from HERA…

高能物理 - 实验 · 物理学 2007-05-23 I. Bloch

Beauty Production in Deep Inelastic Scattering at HERA using Decays into Electrons

The results from a recent analysis on beauty production in deep inelastic scattering at HERA using decays into electrons from the ZEUS collaboration are presented. The fractions of events containing b quarks were extracted from a likelihood…

高能物理 - 实验 · 物理学 2011-09-23 R. Shehzadi

Heavy Flavours at ZEUS and H1

An overview of recent measurements of charm and beauty production in ep collisions at HERA is presented. Various techniques are used by the ZEUS and H1 collaborations to efficiently tag heavy quarks in events and different regions of phase…

高能物理 - 实验 · 物理学 2009-06-17 S. K. Boutle

Measurement of beauty production in deep inelastic scattering at HERA using decays into electrons

The production of beauty quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared Q^2 > 10 GeV^2, using an integrated luminosity of 363 pb^{-1}. The beauty events were identified using…

高能物理 - 实验 · 物理学 2015-03-17 ZEUS collaboration , H. Abramowicz , I. Abt , L. Adamczyk , M. Adamus , R. Aggarwal , S. Antonelli , P. Antonioli , A. Antonov , M. Arneodo , V. Aushev , Y. Aushev , O. Bachynska , A. Bamberger , A. N. Barakbaev , G. Barbagli , G. Bari , F. Barreiro , N. Bartosik , D. Bartsch , M. Basile , O. Behnke , J. Behr , U. Behrens , L. Bellagamba , A. Bertolin , S. Bhadra , M. Bindi , C. Blohm , V. Bokhonov , T. Bołd , O. Bolilyi , E. G. Boos , K. Borras , D. Boscherini , D. Bot , S. K. Boutle , I. Brock , E. Brownson , R. Brugnera , N. Brümmer , A. Bruni , G. Bruni , B. Brzozowska , P. J. Bussey , J. M. Butterworth , B. Bylsma , A. Caldwell , M. Capua , R. Carlin , C. D. Catterall , S. Chekanov , J. Chwastowski , J. Ciborowski , R. Ciesielski , L. Cifarelli , F. Cindolo , A. Contin , A. M. Cooper-Sarkar , N. Coppola , M. Corradi , F. Corriveau , M. Costa , G. D'Agostini , F. Dal Corso , J. del Peso , R. K. Dementiev , S. De Pasquale , M. Derrick , R. C. E. Devenish , D. Dobur , B. A. Dolgoshein , G. Dolinska , A. T. Doyle , V. Drugakov , L. S. Durkin , S. Dusini , Y. Eisenberg , P. F. Ermolov , A. Eskreys , S. Fang , S. Fazio , J. Ferrando , M. I. Ferrero , J. Figiel , M. Forrest , B. Foster , S. Fourletov , G. Gach , A. Galas , E. Gallo , A. Garfagnini , A. Geiser , I. Gialas , L. K. Gladilin , D. Gladkov , C. Glasman , O. Gogota , Yu. A. Golubkov , P. Göttlicher , I. Grabowska-Bołd , J. Grebenyuk , I. Gregor , G. Grigorescu , G. Grzelak , O. Gueta , C. Gwenlan , T. Haas , W. Hain , R. Hamatsu , J. C. Hart , H. Hartmann , G. Hartner , E. Hilger , D. Hochman , R. Hori , K. Horton , A. Hüttmann , G. Iacobucci , Z. A. Ibrahim , Y. Iga , R. Ingbir , M. Ishitsuka , H. -P. Jakob , F. Januschek , M. Jimenez , T. W. Jones , M. Jüngst , I. Kadenko , B. Kahle , B. Kamaluddin , S. Kananov , T. Kanno , U. Karshon , F. Karstens , I. I. Katkov , M. Kaur , P. Kaur , A. Keramidas , L. A. Khein , J. Y. Kim , D. Kisielewska , S. Kitamura , R. Klanner , U. Klein , E. Koffeman , P. Kooijman , Ie. Korol , I. A. Korzhavina , A. Kotański , U. Kötz , H. Kowalski , P. Kulinski , O. Kuprash , M. Kuze , A. Lee , B. B. Levchenko , A. Levy , V. Libov , S. Limentani , T. Y. Ling , M. Lisovyi , E. Lobodzinska , W. Lohmann , B. Löhr , E. Lohrmann , J. H. Loizides , K. R. Long , A. Longhin , D. Lontkovskyi , O. Yu. Lukina , P. Łużniak , J. Maeda , S. Magill , I. Makarenko , J. Malka , R. Mankel , A. Margotti , G. Marini , J. F. Martin , A. Mastroberardino , M. C. K. Mattingly , I. -A. Melzer-Pellmann , S. Mergelmeyer , S. Miglioranzi , F. Mohamad Idris , V. Monaco , A. Montanari , J. D. Morris , K. Mujkic , B. Musgrave , K. Nagano , T. Namsoo , R. Nania , D. Nicholass , A. Nigro , Y. Ning , U. Noor , D. Notz , R. J. Nowak , A. E. Nuncio-Quiroz , B. Y. Oh , N. Okazaki , K. Oliver , K. Olkiewicz , Yu. Onishchuk , K. Papageorgiu , A. Parenti , E. Paul , J. M. Pawlak , B. Pawlik , P. G. Pelfer , A. Pellegrino , W. Perlanski , H. Perrey , K. Piotrzkowski , P. Plucinski , N. S. Pokrovskiy , A. Polini , A. S. Proskuryakov , M. Przybycień , A. Raval , D. D. Reeder , B. Reisert , Z. Ren , J. Repond , Y. D. Ri , A. Robertson , P. Roloff , E. Ron , I. Rubinsky , M. Ruspa , R. Sacchi , A. Salii , U. Samson , G. Sartorelli , A. A. Savin , D. H. Saxon , M. Schioppa , S. Schlenstedt , P. Schleper , W. B. Schmidke , U. Schneekloth , V. Schönberg , T. Schörner-Sadenius , J. Schwartz , F. Sciulli , L. M. Shcheglova , R. Shehzadi , S. Shimizu , I. Singh , I. O. Skillicorn , W. Słomiński , W. H. Smith , V. Sola , A. Solano , D. Son , V. Sosnovtsev , A. Spiridonov , H. Stadie , L. Stanco , A. Stern , T. P. Stewart , A. Stifutkin , P. Stopa , S. Suchkov , G. Susinno , L. Suszycki , J. Sztuk-Dambietz , D. Szuba , J. Szuba , A. D. Tapper , E. Tassi , J. Terrón , T. Theedt , H. Tiecke , K. Tokushuku , O. Tomalak , J. Tomaszewska , T. Tsurugai , M. Turcato , T. Tymieniecka , C. Uribe-Estrada , M. Vázquez , A. Verbytskyi , O. Viazlo , N. N. Vlasov , O. Volynets , R. Walczak , W. A. T. Wan Abdullah , J. J. Whitmore , J. Whyte , L. Wiggers , M. Wing , M. Wlasenko , G. Wolf , H. Wolfe , K. Wrona , A. G. Yagües-Molina , S. Yamada , Y. Yamazaki , R. Yoshida , C. Youngman , A. F. Żarnecki , L. Zawiejski , O. Zenaiev , W. Zeuner , B. O. Zhautykov , N. Zhmak , C. Zhou , A. Zichichi , M. Zolko , D. S. Zotkin , Z. Zulkapli

Measurement of open beauty production at HERA in the D* muon final state

The production of beauty quarks with a D*+- and a muon in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb-1. Low transverse-momentum thresholds for the muon and D* meson allow a…

高能物理 - 实验 · 物理学 2012-08-03 ZEUS Collaboration , S. Chekanov

Measurement of beauty production in deep inelastic scattering at HERA

The beauty production cross section for deep inelastic scattering events with at least one hard jet in the Breit frame together with a muon has been measured, for photon virtualities Q^2 > 2 GeV^2, with the ZEUS detector at HERA using…

高能物理 - 实验 · 物理学 2012-08-27 ZEUS Collaboration

Open Beauty Production

We review measurements of open beauty production at HERA, with emphasis on recent results based on lifetime signatures. The beauty cross sections in photoproduction and deep-inelastic scattering are found to be higher than expected in QCD…

高能物理 - 实验 · 物理学 2008-11-26 Felix Sefkow

Measurement of Beauty Production at HERA Using Events with Muons and Jets

A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the years 1999-2000. Events are selected by…

高能物理 - 实验 · 物理学 2012-08-27 H1 Collaboration

Heavy Flavour Production at HERA

The production of charm and beauty quarks in ep collisions at HERA has been studied by the H1 and ZEUS collaborations. Charm production is generally well described in total rate and in shape by next to leading order (NLO) calculations in…

高能物理 - 实验 · 物理学 2019-08-14 Benno List

Measurement of beauty production in DIS and F_2^bbbar extraction at ZEUS

Beauty production in deep inelastic scattering with events in which a muon and a jet are observed in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb^-1. The fraction of events with…

高能物理 - 实验 · 物理学 2014-11-21 ZEUS collaboration , H. Abramowicz , I. Abt , L. Adamczyk , M. Adamus , R. Aggarwal , S. Antonelli , P. Antonioli , A. Antonov , M. Arneodo , V. Aushev , Y. Aushev , O. Bachynska , A. Bamberger , A. N. Barakbaev , G. Barbagli , G. Bari , F. Barreiro , D. Bartsch , M. Basile , O. Behnke , J. Behr , U. Behrens , L. Bellagamba , A. Bertolin , S. Bhadra , M. Bindi , C. Blohm , T. Bold , E. G. Boos , M. Borodin , K. Borras , D. Boscherini , D. Bot , S. K. Boutle , I. Brock , E. Brownson , R. Brugnera , N. Bruemmer , A. Bruni , G. Bruni , B. Brzozowska , P. J. Bussey , J. M. Butterworth , B. Bylsma , A. Caldwell , M. Capua , R. Carlin , C. D. Catterall , S. Chekanov , J. Chwastowski , J. Ciborowski , R. Ciesielski , L. Cifarelli , F. Cindolo , A. Contin , A. M. Cooper-Sarkar , N. Coppola , M. Corradi , F. Corriveau , M. Costa , G. D'Agostini , F. Dal Corso , J. de Favereau , J. del Peso , R. K. Dementiev , S. De Pasquale , M. Derrick , R. C. E. Devenish , D. Dobur , B. A. Dolgoshein , A. T. Doyle , V. Drugakov , L. S. Durkin , S. Dusini , Y. Eisenberg , P. F. Ermolov , A. Eskreys , S. Fang , S. Fazio , J. Ferrando , M. I. Ferrero , J. Figiel , M. Forrest , B. Foster , S. Fourletov , G. Gach , A. Galas , E. Gallo , A. Garfagnini , A. Geiser , I. Gialas , L. K. Gladilin , D. Gladkov , C. Glasman , O. Gogota , Yu. A. Golubkov , P. Goettlicher , I. Grabowska-Bold , J. Grebenyuk , I. Gregor , G. Grigorescu , G. Grzelak , C. Gwenlan , T. Haas , W. Hain , R. Hamatsu , J. C. Hart , H. Hartmann , G. Hartner , E. Hilger , D. Hochman , U. Holm , R. Hori , K. Horton , A. Huettmann , G. Iacobucci , Z. A. Ibrahim , Y. Iga , R. Ingbir , M. Ishitsuka , H. -P. Jakob , F. Januschek , M. Jimenez , T. W. Jones , M. Juengst , I. Kadenko , B. Kahle , B. Kamaluddin , S. Kananov , T. Kanno , U. Karshon , F. Karstens , I. I. Katkov , M. Kaur , P. Kaur , A. Keramidas , L. A. Khein , J. Y. Kim , D. Kisielewska , S. Kitamura , R. Klanner , U. Klein , E. Koffeman , D. Kollar , P. Kooijman , Ie. Korol , I. A. Korzhavina , A. Kotanski , U. Koetz , H. Kowalski , P. Kulinski , O. Kuprash , M. Kuze , V. A. Kuzmin , A. Lee , B. B. Levchenko , A. Levy , V. Libov , S. Limentani , T. Y. Ling , M. Lisovyi , E. Lobodzinska , W. Lohmann , B. Loehr , E. Lohrmann , J. H. Loizides , K. R. Long , A. Longhin , D. Lontkovskyi , O. Yu. Lukina , P. Luzniak , J. Maeda , S. Magill , I. Makarenko , J. Malka , R. Mankel , A. Margotti , G. Marini , J. F. Martin , A. Mastroberardino , T. Matsumoto , M. C. K. Mattingly , I. -A. Melzer-Pellmann , S. Miglioranzi , F. Mohamad Idris , V. Monaco , A. Montanari , J. D. Morris , B. Musgrave , K. Nagano , T. Namsoo , R. Nania , D. Nicholass , A. Nigro , Y. Ning , U. Noor , D. Notz , R. J. Nowak , A. E. Nuncio-Quiroz , B. Y. Oh , N. Okazaki , K. Oliver , K. Olkiewicz , Yu. Onishchuk , O. Ota , K. Papageorgiu , A. Parenti , E. Paul , J. M. Pawlak , B. Pawlik , P. G. Pelfer , A. Pellegrino , W. Perlanski , H. Perrey , K. Piotrzkowski , P. Plucinski , N. S. Pokrovskiy , A. Polini , A. S. Proskuryakov , M. Przybycien , A. Raval , D. D. Reeder , B. Reisert , Z. Ren , J. Repond , Y. D. Ri , A. Robertson , P. Roloff , E. Ron , I. Rubinsky , M. Ruspa , R. Sacchi , A. Salii , U. Samson , G. Sartorelli , A. A. Savin , D. H. Saxon , M. Schioppa , S. Schlenstedt , P. Schleper , W. B. Schmidke , U. Schneekloth , V. Schoenberg , T. Schoerner-Sadenius , J. Schwartz , F. Sciulli , L. M. Shcheglova , R. Shehzadi , S. Shimizu , I. Singh , I. O. Skillicorn , W. Slominski , W. H. Smith , V. Sola , A. Solano , D. Son , V. Sosnovtsev , A. Spiridonov , H. Stadie , L. Stanco , A. Stern , T. P. Stewart , A. Stifutkin , P. Stopa , S. Suchkov , G. Susinno , L. Suszycki , J. Sztuk , D. Szuba , J. Szuba , A. D. Tapper , E. Tassi , J. Terron , T. Theedt , H. Tiecke , K. Tokushuku , O. Tomalak , J. Tomaszewska , T. Tsurugai , M. Turcato , T. Tymieniecka , C. Uribe-Estrada , M. Vazquez , A. Verbytskyi , V. Viazlo , N. N. Vlasov , O. Volynets , R. Walczak , W. A. T. Wan Abdullah , J. J. Whitmore , J. Whyte , L. Wiggers , M. Wing , M. Wlasenko , G. Wolf , H. Wolfe , K. Wrona , A. G. Yagues-Molina , S. Yamada , Y. Yamazaki , R. Yoshida , C. Youngman , A. F. Zarnecki , L. Zawiejski , O. Zenaiev , W. Zeuner , B. O. Zhautykov , N. Zhmak , C. Zhou , A. Zichichi , M. Zolko , D. S. Zotkin , Z. Zulkapli

Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic $ep$ scattering at HERA

Measurements of open charm and beauty production cross sections in deep inelastic $ep$ scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum…

高能物理 - 实验 · 物理学 2018-04-04 H1 , ZEUS collaborations

Review of Beauty Production at HERA and Elsewhere

Experimental results on beauty production at HERA are reviewed in the context of similar measurements at other colliders. As a result of a phenomenological study of the QCD scale dependence of many different NLO and NNLO predictions, a…

高能物理 - 实验 · 物理学 2007-11-15 Achim Geiser

Open Beauty Production at HERA

Recent results on open beauty production in positron-proton collisions at a centre-of-mass energy of 300 GeV are presented. The beauty photoproduction cross section is measured by ZEUS and H1 via the semileptonic decay. Both experiments use…

高能物理 - 实验 · 物理学 2015-06-25 J. Kroseberg

Charm and Beauty Photoproduction at HERA

After the completion of data taking at HERA-2, a large data set is at hand to study the photoproduction of charm and beauty quarks in ep collisions. New measurements of charm production based on D^* meson tagging and beauty production based…

高能物理 - 实验 · 物理学 2019-08-14 Benno List

Recent investigations of QCD at HERA

The latest results from the H1 and ZEUS collaborations which challenge the QCD description of high energy $ep$ collisions are presented. Data from HERA continue to provide precision measurements and are compared to the latest theoretical…

高能物理 - 实验 · 物理学 2017-07-18 Matthew Wing

Measurement of beauty production from dimuon events at HERA

Beauty production in events containing two muons in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb-1. A low transverse-momentum threshold for muon identification, in combination…

高能物理 - 实验 · 物理学 2009-02-18 ZEUS Collaboration , S. Chekanov

Beauty photoproduction using decays into electrons at HERA

Photoproduction of beauty quarks in events with two jets and an electron associated with one of the jets has been studied with the ZEUS detector at HERA using an integrated luminosity of 120pb^-1. The fractions of events containing b…

高能物理 - 实验 · 物理学 2008-11-07 ZEUS Collaboration , S. Chekanov