Related papers: Hadron Spectroscopy at HERA

Diffractive Electroproduction of rho and phi Mesons at HERA

Diffractive electroproduction of rho and phi mesons is measured at HERA with the H1 detector in the elastic and proton dissociative channels. The data correspond to an integrated luminosity of 51 pb^-1. About 10500 rho and 2000 phi events…

High Energy Physics - Experiment · Physics 2012-08-27 The H1 Collaboration

Soft Particle Production at HERA

HERA data on soft hadron production are discussed. The measured inclusive and exclusive hadron cross sections show a simple scaling behaviour.

High Energy Physics - Phenomenology · Physics 2017-08-23 A. Rostovtsev

Measurement of $ D^{*\pm}$ production in deep inelastic scattering at HERA

The production of $D^{*\pm}$ mesons in deep inelastic $ep$ scattering has been measured for exchanged photon virtualities $ 5<Q^2<1000 \gev^2 $, using an integrated luminosity of 363 pb$^{-1}$ with the ZEUS detector at HERA. Differential…

High Energy Physics - Experiment · Physics 2014-01-21 ZEUS Collaboration

Photoproduction of K^0 and Lambda at HERA and a Comparison with Deep Inelastic Scattering

Inclusive $K^0$ and $\Lambda$ photoproduction has been investigated at HERA with the H1 detector at an average photon-proton center of mass energy of 200 GeV in the transverse momentum range 0.5 <p_t <5 GeV. The production rates as a…

High Energy Physics - Experiment · Physics 2008-11-26 C. Adloff

Diffractive production of isolated photons with the ZEUS detector at HERA

The photoproduction of isolated photons has been measured in diffractive events recorded by the ZEUS detector at HERA. Cross sections are evaluated in the photon-proton transverse-energy and pseudorapidity ranges 5<ET(gamma)<15 GeV and…

High Energy Physics - Experiment · Physics 2017-10-31 Aharon Levy

Measurement of Neutral and Charged Current Cross Sections in Electron-Proton Collisions at High Q^2

The inclusive e^-p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA, in the range of four-momentum transfer squared Q^2 between 150 and 30000 GeV^2, and…

High Energy Physics - Experiment · Physics 2009-01-07 H1 Collaboration , C. Adloff

Inclusive photoproduction of vector quarkonium in ultra-peripheral collisions at the LHC

We explore the prospects of extending the LHC from a hadron-hadron to a photon-hadron collider and performing studies of inclusive quarkonium photoproduction. We perform an extrapolation from HERA data to predict the yields of photoproduced…

High Energy Physics - Phenomenology · Physics 2025-01-22 Kate Lynch

Measurement of the D* Meson Production Cross Section and F_2^{ccbar}, at High Q^2, in ep Scattering at HERA

The inclusive production of D*(2010) mesons in deep-inelastic ep scattering is measured in the kinematic region of photon virtuality 100 < Q^2 < 1000 GeV^2 and inelasticity 0.02 < y < 0.7. Single and double differential cross sections for…

High Energy Physics - Experiment · Physics 2012-08-27 The H1 Collaboration

Search for Excited Electrons in ep Collisions at HERA

A search for excited electrons is performed using the full $e^{\pm}p$ data sample collected by the H1 experiment at HERA, corresponding to a total luminosity of 475 pb$^{-1}$. The electroweak decays of excited electrons…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

Inelastic Production of J/psi Mesons in Photoproduction and Deep Inelastic Scattering at HERA

A measurement is presented of inelastic photo- and electroproduction of J/psi mesons in ep scattering at HERA. The data were recorded with the H1 detector in the period from 2004 to 2007. Single and double differential cross sections are…

High Energy Physics - Experiment · Physics 2015-05-18 H1 Collaboration

Photoproduction at HERA

Selected aspects of photoproduction in ep scattering at the HERA collider, studied with the ZEUS detector, are presented. The results are interpreted in the formalism of Vector Dominance Model, Regge theory and perturbative Quantum…

High Energy Physics - Experiment · Physics 2007-05-23 J. Chwastowski , J. Figiel

Measurements of Differential Cross Sections of Inclusive $\pi^0$ and $K^0_S$ Production in $e^{+}e^{-}$ Annihilation at Energies from 2.2324 to 3.6710 GeV

Based on electron positron collision data collected with the BESIII detector operating at the BEPCII storage rings, the differential cross sections of inclusive $\pi^0$ and $K^0_S$ production as a function of hadron momentum, normalized by…

High Energy Physics - Experiment · Physics 2023-06-08 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , M. Albrecht , R. Aliberti , A. Amoroso , M. R. An , Q. An , Y. Bai , O. Bakina , R. Baldini Ferroli , I. Balossino , Y. Ban , V. Batozskaya , D. Becker , K. Begzsuren , N. Berger , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , J. Bloms , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , W. L. Chang , G. R. Che , G. Chelkov , C. Chen , Chao Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , Y. B. Chen , Z. J. Chen , W. S. Cheng , S. K. Choi , X. Chu , G. Cibinetto , F. Cossio , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , Y. Ding , Y. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , S. X. Du , Z. H. Duan , P. Egorov , Y. L. Fan , J. Fang , S. S. Fang , W. X. Fang , Y. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , K Fischer , M. Fritsch , C. Fritzsch , C. D. Fu , H. Gao , X. L. Gao , Y. N. Gao , Yang Gao , S. Garbolino , I. Garzia , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , M. Greco , L. M. Gu , M. H. Gu , Y. T. Gu , C. Y Guan , A. Q. Guo , L. B. Guo , R. P. Guo , Y. P. Guo , A. Guskov , W. Y. Han , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , G. Y. Hou , Y. R. Hou , Z. L. Hou , H. M. Hu , J. F. Hu , T. Hu , Y. Hu , G. S. Huang , K. X. Huang , L. Q. Huang , X. T. Huang , Y. P. Huang , Z. Huang , T. Hussain , N. Hüsken , W. Imoehl , M. Irshad , J. Jackson , S. Jaeger , S. Janchiv , E. Jang , J. H. Jeong , Q. Ji , Q. P. Ji , X. B. Ji , X. L. Ji , Y. Y. Ji , Z. K. Jia , P. C. Jiang , S. S. Jiang , X. S. Jiang , Y. Jiang , J. B. 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Liu , H. B. Liu , H. M. Liu , Huanhuan Liu , Huihui Liu , J. B. Liu , J. L. Liu , J. Y. Liu , K. Liu , K. Y. Liu , Ke Liu , L. Liu , Lu Liu , M. H. Liu , P. L. Liu , Q. Liu , S. B. Liu , T. Liu , W. K. Liu , W. M. Liu , X. Liu , Y. Liu , Y. B. Liu , Z. A. Liu , Z. Q. Liu , X. C. Lou , F. X. Lu , H. J. Lu , J. G. Lu , X. L. Lu , Y. Lu , Y. P. Lu , Z. H. Lu , C. L. Luo , M. X. Luo , T. Luo , X. L. Luo , X. R. Lyu , Y. F. Lyu , F. C. Ma , H. L. Ma , L. L. Ma , M. M. Ma , Q. M. Ma , R. Q. Ma , R. T. Ma , X. Y. Ma , Y. Ma , F. E. Maas , M. Maggiora , S. Maldaner , S. Malde , Q. A. Malik , A. Mangoni , Y. J. Mao , Z. P. Mao , S. Marcello , Z. X. Meng , J. G. Messchendorp , G. Mezzadri , H. Miao , T. J. Min , R. E. Mitchell , X. H. Mo , N. Yu. Muchnoi , Y. Nefedov , F. Nerling , I. B. Nikolaev , Z. Ning , S. Nisar , Y. Niu , S. L. Olsen , Q. Ouyang , S. Pacetti , X. Pan , Y. Pan , A. Pathak , Y. P. Pei , M. Pelizaeus , H. P. Peng , K. Peters , J. L. Ping , R. G. Ping , S. Plura , S. Pogodin , V. Prasad , F. Z. Qi , H. Qi , H. R. Qi , M. Qi , T. Y. Qi , S. Qian , W. B. Qian , Z. Qian , C. F. Qiao , J. J. Qin , L. Q. Qin , X. P. Qin , X. S. Qin , Z. H. Qin , J. F. Qiu , S. Q. Qu , K. H. Rashid , C. F. Redmer , K. J. Ren , A. Rivetti , V. Rodin , M. Rolo , G. Rong , Ch. Rosner , S. N. Ruan , A. Sarantsev , Y. Schelhaas , C. Schnier , K. Schoenning , M. Scodeggio , K. Y. Shan , W. Shan , X. Y. Shan , J. F. Shangguan , L. G. Shao , M. Shao , C. P. Shen , H. F. Shen , W. H. Shen , X. Y. Shen , B. A. Shi , H. C. Shi , J. Y. Shi , q. q. Shi , R. S. Shi , X. Shi , J. J. Song , W. M. Song , Y. X. Song , S. Sosio , S. Spataro , F. Stieler , P. P. Su , Y. J. Su , G. X. Sun , H. Sun , H. K. Sun , J. F. Sun , L. Sun , S. S. Sun , T. Sun , W. Y. Sun , Y. J. Sun , Y. Z. Sun , Z. T. Sun , Y. H. Tan , Y. X. Tan , C. J. Tang , G. Y. Tang , J. Tang , L. Y Tao , Q. T. Tao , M. Tat , J. X. Teng , V. Thoren , W. H. Tian , Y. Tian , I. Uman , B. Wang , B. Wang , B. L. Wang , C. W. 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Zhu , K. Zhu , K. J. Zhu , L. X. Zhu , S. H. Zhu , S. Q. Zhu , T. J. Zhu , W. J. Zhu , Y. C. Zhu , Z. A. Zhu , J. H. Zou , J. Zu

Topical Results on Vector-Meson Production from the HERA Collider Experiments

The HERA collider experiments H1 and ZEUS have established extensive measurement programs for diffractive vector-meson production processes during the first six years of their operation. The results provide stringent phenomenological tests…

High Energy Physics - Experiment · Physics 2007-05-23 J. A. Crittenden

Measurement of the t dependence in exclusive photoproduction of Upsilon(1S) mesons at HERA

The exclusive photoproduction reaction gamma p -> Upsilon(1S) p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb^-1. The measurement covers the kinematic range 60<W<220 GeV and Q^2<1…

High Energy Physics - Experiment · Physics 2015-06-03 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 , K. Bondarenko , E. G . Boos , K. Borras , D. Boscherini , D. Bot , I. Brock , E. Brownson , R. Brugnera , N. Brümmer , A. Bruni , G. Bruni , B. Brzozowska , P. J. Bussey , 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 , 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 , M. Guzik , 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 , Z. A. Ibrahim , Y. Iga , R. Ingbir , M. Ishitsuka , H. -P. Jakob , F. Januschek , T. W. Jones , M. Jüngst , I. Kadenko , B. Kahle , 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 , 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 , K. R. Long , A. Longhin , D. Lontkovskyi , O. Yu. Lukina , 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 , A. Nigro , Y. Ning , T. Nobe , 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. Perlański , H. Perrey , K. Piotrzkowski , P. Pluciński , 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 , 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 , M. Vázquez , A. Verbytskyi , O. Viazlo , N. N. Vlasov , O. Volynets , R. Walczak , W. A. T. Wan Abdullah , J. J. Whitmore , 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 , Z. Zolkapli , M. Zolko , D. S. Zotkin

Photo-production of psi' Mesons at HERA

Quasi-elastic (z >0.95) photo-production of psi' mesons has been observed at HERA for photon-proton centre-of-mass energies in the range 40 to 160 GeV. The psi' mesons were identified through their decays to l+l- and to J/psi pi+ pi-, where…

High Energy Physics - Experiment · Physics 2008-11-26 C. Adloff

A Precision Measurement of the Inclusive ep Scattering Cross Section at HERA

A measurement of the inclusive deep-inelastic neutral current e+p scattering cross section is reported in the region of four-momentum transfer squared, 12<=Q^2<=150 GeV^2, and Bjorken x, 2x10^-4<=x<=0.1. The results are based on data…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

Measurement of Beauty Photoproduction near Threshold using Di-electron Events with the H1 Detector at HERA

The cross section for ep -> e b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel b\bar{b} -> ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total…

High Energy Physics - Experiment · Physics 2015-06-05 H1 Collaboration

Combination of Differential D^{*\pm} Cross-Section Measurements in Deep-Inelastic ep Scattering at HERA

H1 and ZEUS have published single-differential cross sections for inclusive D^{*\pm}-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible…

High Energy Physics - Experiment · Physics 2016-01-15 The H1 , ZEUS Collaborations

Review of Searches for Rare Processes and Physics Beyond the Standard Model at HERA

The electron-proton collisions collected by the H1 and ZEUS experiments at HERA comprise a unique particle physics data set, and a comprehensive range of measurements has been performed to provide new insight into the structure of the…

High Energy Physics - Experiment · Physics 2016-07-20 David M. South , Monica Turcato

Diffractive production of isolated photons at HERA

The ZEUS detector at HERA has been used to measure the photoproduction of isolated photons in diffractive events. Cross sections are evaluated in the photon transverse-energy and pseudorapidity ranges 5 < E_T^gamma < 15 Gev and -0.7 <…

High Energy Physics - Experiment · Physics 2019-08-13 Peter Bussey