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1.
Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA / H1 Collaboration
In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. [...]
arXiv:2412.14092 ; DESY24-200.
- 15.
Fulltext
2.
Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame / H1 Collaboration
The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quark is back-scattered along the virtual photon momentum direction. [...]
arXiv:2403.08982; DESY-24-034.- 2024-07-22 - 13 p. - Published in : Eur. Phys. J. C 84 (2024) 720 Fulltext: document - PDF; 2403.08982 - PDF;
3.
Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA / H1 Collaboration
The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at $\sqrt{s}=319$ GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of $351$ pb$^{-1}$. Event shapes provide incisive probes of perturbative and non-perturbative QCD. [...]
arXiv:2403.10134; DESY-24-036.- 2024-07-22 - 32 p. - Published in : Eur. Phys. J. C 84 (2024) 718 Fulltext: document - PDF; 2403.10134 - PDF;
4.
Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA / H1 Collaboration
The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau_1^b$ is equivalent to a thrust observable defined in the Breit frame. [...]
arXiv:2403.10109; DESY-24-035.- 2024-08-07 - 42 p. - Published in : Eur. Phys. J. C 84 (2024) 785 Fulltext: document - PDF; 2403.10109 - PDF;
5.
Unbinned deep learning jet substructure measurement in high Q2ep collisions at HERA / H1 Collaboration
The radiation pattern within high energy quark- and gluon-initiated jets (jet substructure) is used extensively as a precision probe of the strong force as well as an environment for optimizing event generators with numerous applications in high energy particle and nuclear physics. Looking at electron-proton collisions is of particular interest as many of the complications present at hadron colliders are absent. [...]
arXiv:2303.13620; DESY-23-034.- 2023-07-31 - 25 p. - Published in : Phys. Lett. B 844 (2023) 138101 Fulltext: PDF;
6.
Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions / H1 Collaboration
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 data on inclusive deep inelastic $ep$ scattering together with jet data as published by the H1 and ZEUS collaborations. [...]
arXiv:2112.01120; DESY-21-206.- 2022-03-21 - 43 p. - Published in : Eur. Phys. J. C 82 (2022) 243 Fulltext: 2112.01120 - PDF; document - PDF;
7.
Measurement of lepton-jet correlation in deep-inelastic scattering with the H1 detector using machine learning for unfolding / H1 Collaboration
The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 detector at HERA, are corrected for detector effects using an unbinned machine learning algorithm OmniFold, which considers eight observables simultaneously in this first application. [...]
arXiv:2108.12376; DESY 21-130.- 2022-03-31 - 17 p. - Published in : Phys. Rev. Lett. 128 (2022) 132002 Fulltext: PDF;
8.
Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons / H1 Collaboration
Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy $\sqrt{s}=319$ GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated luminosity of $136$ pb${}^{-1}$. [...]
arXiv:2011.01812; DESY-20-176.- 2021-03-03 - 46 p. - Published in : Eur. Phys. J. C 81 (2021) 212 Article from SCOAP3: PDF; Fulltext: PDF;
9.
Measurement of exclusive $\pi^+ \pi ^-$ and $\rho^0$ meson photoproduction at HERA / H1 Collaboration
Exclusive photoproduction of $\rho^0(770)$ mesons is studied using the H1 detector at the $ep$ collider HERA. A sample of about 900000 events is used to measure single- and double-differential cross sections for the reaction $\gamma p \to \pi^{+}\pi^{-}Y$. [...]
arXiv:2005.14471; DESY-20-080.- 2020-12-23 - 54 p. - Published in : Eur. Phys. J. C 80 (2020) 1189 Article from SCOAP3: PDF; Fulltext: PDF;
10.
Search for $CP$ violation in $\Xi_c^+\rightarrow pK^-\pi^+$ decays using model-independent techniques / LHCb Collaboration
A first search for $CP$ violation in the Cabibbo-suppressed $\Xi_c^+\rightarrow pK^-\pi^+$ decay is performed using both a binned and an unbinned model-independent technique in the Dalitz plot. The studies are based on a sample of proton-proton collision data, corresponding to an integrated luminosity of $3.0~\rm fb^{-1}$, and collected by the LHCb experiment at centre-of-mass energies of $7$ and $8~\rm TeV$. [...]
arXiv:2006.03145; CERN-EP-2020-069; LHCb-PAPER-2019-026; LHCB-PAPER-2019-026.- Geneva : CERN, 2020-10-26 - 16 p. - Published in : Eur. Phys. J. C 80 (2020) 986 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;

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See also: similar author names
404 Straumann, U
1 Straumann, U D
2 Straumann, Ueli
382 Straumann, Ulrich
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