Publications (32)
Charm production in charged current deep inelastic scattering at HERA
ZEUS collaboration, I. Abt, L. Adamczyk +92
Charm production in charged current deep inelastic scattering has been measured for the first time in collisions, using data collected with the ZEUS detector at HERA, co…
Exclusive electroproduction of two pions at HERA
ZEUS collaboration, H. Abramowicz, I. Abt +302
The exclusive electroproduction of two pions in the mass range 0.4 < MÏÏ < 2.5 GeV has been studied with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The…
Measurement of beauty production in deep inelastic scattering at HERA using decays into electrons
ZEUS collaboration, H. Abramowicz, I. Abt +311
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 luminosit…
Search for effective Lorentz and CPT violation using ZEUS data
ZEUS collaboration, I. Abt, R. Aggarwal +77
Lorentz and CPT symmetry in the quark sector of the Standard Model are studied in the context of an effective field theory using ZEUS data. Symmetry-violating effects c…
Further studies of the photoproduction of isolated photons with a jet at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +170
In this extended analysis using the ZEUS detector at HERA, the photoproduction of isolated photons together with a jet is measured for different ranges of the fractional photon ene…
SiPMs coated with TPB : coating protocol and characterization for NEXT
V. Ãlvarez, J. Agramunt, M. Ball +91
Silicon photomultipliers (SiPM) are the photon detectors chosen for the tracking readout in NEXT, a neutrinoless ββ decay experiment which uses a high pressure gaseous xenon time…
The design and performance of the ZEUS Micro Vertex detector
A. Polini, I. Brock, S. Goers +79
In order to extend the tracking acceptance, to improve the primary and secondary vertex reconstruction and thus enhancing the tagging capabilities for short lived particles, the ZE…
Measurement of the t dependence in exclusive photoproduction of Upsilon(1S) mesons at HERA
ZEUS collaboration, H. Abramowicz, I. Abt +300
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 me…
Boosted objects and jet substructure at the LHC
BOOST2012 participants- A. Altheimer, A. Arce, L. Asquith +84
This report of the BOOST2012 workshop presents the results of four working groups that studied key aspects of jet substructure. We discuss the potential of the description of jet s…
Measurement of high-Q2 neutral current deep inelastic e+p scattering cross sections with a longitudinally polarised positron beam at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +300
Measurements of neutral current cross sections for deep inelastic scattering in e+p collisions at HERA with a longitudinally polarised positron beam are presented. The single-diffe…
NLO QCD corrections to tW' and tZ' production in forward-backward asymmetry models
J. Adelman, J. Ferrando, C. D. White
We consider Z' and W' models recently proposed to explain the top forward-backward asymmetry at the Tevatron. We present the next-to-leading order QCD corrections to associated pro…
Measurement of jet production in deep inelastic scattering and NNLO determination of the strong coupling at ZEUS
ZEUS Collaboration, I. Abt, R. Aggarwal +78
A new measurement of inclusive-jet cross sections in the Breit frame in neutral current deep inelastic scattering using the ZEUS detector at the HERA collider is presented. The dat…
Towards an Understanding of the Correlations in Jet Substructure
D. Adams, A. Arce, L. Asquith +83
Over the past decade, a large number of jet substructure observables have been proposed in the literature, and explored at the LHC experiments. Such observables attempt to utilize…
The Optical Alignment System of the ZEUS MicroVertex Detector
K. Korcsak-Gorzo, G. Grzelak, K. Oliver +6
The laser alignment system of the ZEUS microvertex detector is described. The detector was installed in 2001 as part of an upgrade programme in preparation for the second phase of…
Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions
H1, ZEUS Collaborations, : +234
The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA da…
Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass
ZEUS collaboration, H. Abramowicz, I. Abt +171
The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q^2 < 1000 GeV^2 using an integ…
Measurement of neutral current e+/-p cross sections at high Bjorken x with the ZEUS detector
ZEUS Collaboration, H. Abramowicz, I. Abt +170
The neutral current e+/-p cross section has been measured up to values of Bjorken x of approximately 1 with the ZEUS detector at HERA using an integrated luminosity of 187 inv. pb…
On direct measurement of the W production charge asymmetry at the LHC
K. Lohwasser, J. Ferrando, C. Issever
The prospects for making a direct measurement of the W production charge asymmetry at the LHC are discussed. A modification to the method used at the Tevatron is proposed for measu…
Measurement of D* photoproduction at three different centre-of-mass energies at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +170
The photoproduction of mesons has been measured with the ZEUS detector at HERA at three different ep centre-of-mass energies, , of 318, 251 and 225 GeV. For ea…
Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +170
The reduced cross sections for deep inelastic scattering have been measured with the ZEUS detector at HERA at three different centre-of-mass energies, , and $22…
HERA signature-based searches I: events with isolated leptons and missing transverse momentum at HERA
J. Ferrando
Recent results of searches for events containing isolated leptons and missing transverse momentum at HERA are presented. Searches in this final state have yielded notable excesses…
Inclusive-jet photoproduction at HERA and determination of alphas
ZEUS Collaboration, H. Abramowicz, I. Abt +303
Inclusive-jet cross sections have been measured in the reaction ep->e+jet+X for photon virtuality Q2 < 1 GeV2 and gamma-p centre-of-mass energies in the region 142 < W(gamma-p) < 2…
The azimuthal correlation between the leading jet and the scattered lepton in deep inelastic scattering at HERA
ZEUS Collaboration, I. Abt, R. Aggarwal +78
The azimuthal correlation angle, , between the scattered lepton and the leading jet in deep inelastic scattering at HERA has been studied using data collected with…
Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA
ZEUS collaboration, H. Abramowicz, I. Abt +300
The production of Z0 bosons in the reaction ep -> eZ0p*, where p* stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS dete…
DISPred - a program to calculate deep inelastic scattering cross sections
J. Ferrando
A new package, DISPred, is described. The package can be used to calculate ep deep inelastic scattering cross sections at Born level in Electroweak theory and at both leading and n…
Probing QCD at the Highest Deep Inelastic Scattering
J. Ferrando
Recent results from the HERA ep collider are reviewed in these proceedings. The results are from measurements that probe QCD at high-energy scales, as defined by , the four-mo…
Azimuthal correlations in photoproduction and deep inelastic scattering at HERA
ZEUS collaboration, I. Abt, R. Aggarwal +81
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity scattering at a centre-of-mass energy GeV with the ZE…
Measurement of heavy-quark jet photoproduction at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +309
Photoproduction of beauty and charm quarks in events with at least two jets has been measured with the ZEUS detector at HERA using an integrated luminosity of 133 . The fr…
Scaled momentum distributions for K0s and Lambda/bar Lambda in DIS at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +300
Scaled momentum distributions for the strange hadrons K0s and Lambda/bar Lambda were measured in deep inelastic ep scattering with the ZEUS detector at HERA using an integrated lum…
Measurement of beauty production in DIS and F_2^bbbar extraction at ZEUS
ZEUS collaboration, H. Abramowicz, I. Abt +311
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 integ…
Search for single-top production in ep collisions at HERA
ZEUS Collaboration, H. Abramowicz, I. Abt +300
A search for single-top production, , has been performed with the ZEUS detector at HERA using data corresponding to an integrated luminosity of $0.37\fbi$. No e…
Measurement of the cross-section ratio in exclusive photoproduction at HERA
ZEUS Collaboration, I. Abt, M. Adamus +80
The exclusive photoproduction reactions and have been measured at an centre-of-mass energy of 318 GeV with the ZEUS detector at HERA us…