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Measurement and QCD analysis of the diffractive deep-inelastic scattering cross section at HERA

A detailed analysis is presented of the diffractive deep-inelastic scattering process ep -> eXY, where Y is a proton or a low mass proton excitation carrying a fraction 1 - x(IP) > 0.95 of the incident proton longitudinal momentum and the squared four-momentum transfer at the proton vertex satisfies |t| < 1 GeV2. Using data taken by the H1 experiment, the cross section is measured for photon virtu

Tests of QCD factorisation in the diffractive production of dijets in deep-inelastic scattering and photoproduction at HERA

Measurements are presented of differential dijet cross sections in diffractive photoproduction (Q(2) < 0.01 GeV2) and deep-inelastic scattering processes (DIS, 4 < Q2 < 80 GeV2). The event topology is given by ep -> eXY, in which the system X, containing at least two jets, is separated from a leading low-mass baryonic system Y by a large rapidity gap. The dijet cross sections are compared with NLO

First measurement of charged current cross sections at HERA with longitudinally polarised positrons

Data taken with positrons of different longitudinal polarisation states in collision with unpolarised protons at HERA are used to measure the total cross sections of the charged current process, e(+) p -> nu X, for negative four-momentum transfer squared Q(2) > 400 GeV2 and inelasticity gamma < 0.9. Together with the corresponding cross section obtained from the previously published unpolarised da

Measurement of deeply virtual Compton scattering at HERA

A measurement is presented of elastic deeply virtual Compton scattering gamma* p -> gamma p made using e(+) p collision data corresponding to a luminosity of 46.5 pb(-1), taken with the H1 detector at HERA. The cross section is measured as a function of the photon virtuality, Q(2), the invariant mass of the gamma* p system, W, and for the first time, differentially in the squared momentum transfer

A search for excited neutrinos in e(-) p collisions at HERA

A search for first generation excited neutrinos is performed using the full e(-) p data sample collected by the HI experiment at HERA at a centre-of-mass energy of 319 GeV, corresponding to a total luminosity of 184 pb(-1). The electroweak decays of excited neutrinos nu* -> nu gamma, v* -> nu Z and nu* -> eW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evide

Measurement of diffractive scattering of photons with large momentum transfer at HERA

The first measurement of diffractive scattering of quasi-real photons with large momentum transfer gamma p -> gamma Y, where Y is the proton dissociative system, is made using the H1 detector at HERA. The measurement is performed for initial photon virtualities Q(2) < 0.01 GeV2. Single differential cross sections are Measured as a function of W, the incident photon-proton centre of mass energy, an

Search for excited electrons in ep collisions at HERA

A search for excited electrons is performed using the full e(+/-) p data sample collected by the HI experiment at HERA, corresponding to a total luminosity of 475 pb(-1). The electroweak decays of excited electrons e* -> e gamma, e* -> eZ and e* -> vW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited electron production is found. Mass depende

Measurement of the proton structure function F-L(x, Q(2)) at low x

A first measurement is reported of the longitudinal proton structure function FL(X, Q(2)) at the ep collider HERA. It is based on inclusive deep inelastic e(+)p scattering cross section measurements with a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV. Employing the energy dependence of the cross section, FL is measured in a range of squared four-momentum transf

Measurement of event shape variables in deep-inelastic scattering at HERA

Deep-inelastic ep scattering data taken with the H1 detector at HERA and corresponding to an integrated luminosity of 106 pb(-1) are used to study the differential distributions of event shape variables. These include thrust, jet broadening, jet mass and the C-parameter. The four-momentum transfer Q is taken to be the relevant energy scale and ranges between 14 GeV and 200 GeV. The event shape dis

Search for doubly-charged Higgs boson production at HERA

A search for the single production of doubly-charged Higgs bosons H-+/-+/- in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of them being an electron. The analysis uses up to 118 pb(-1) of ep data collected by the H1 experiment at HERA. No evidence for doubly-charged Higgs production is observed and mass dependent uppe

Three- and four-jet production at low x at HERA

Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q(2) with the H1 detector using an integrated luminosity of 44.2 pb(-1). Several phase space regions are selected for the three-jet analysis in order to study the underlying parton dynamics from global topologies to the more restrictive regions of forward jets close to the proton direction. The measurements of

Study of charm fragmentation into D (* +/-) mesons in deep-inelastic scattering at HERA

The process of charm quark fragmentation is studied using D (* +/-) meson production in deep-inelastic scattering as measured by the H1 detector at HERA. The parameters of fragmentation functions are extracted for QCD models based on leading order matrix elements and DGLAP or CCFM evolution of partons together with string fragmentation and particle decays. Additionally, they are determined for a n

Multi-lepton production at high transverse momenta in ep collisions at HERA

Processes leading to a final state with at least two high transverse momentum leptons (electrons or muons) are studied using the full e(+/-) p data sample collected by the H1 experiment at HERA. The data correspond to an integrated luminosity of 463 pb(-1). Di-lepton and tri-lepton event classes are investigated. Cross sections of the production of e(+)e(-) and mu(+)mu(-) pairs are derived in a re

Strangeness production at low Q(2) in deep-inelastic ep scattering at HERA

The production of neutral strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector at HERA. The measurements are made in the phase space defined by the negative four-momentum transfer squared of the photon 2 < Q(2) < 100 GeV2 and the inelasticity 0.1 < y < 0.6. The K-s(0) s and Lambda((Lambda) over bar) production cross sections and their ratios are dete

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At the End of the World Newsletter – 15 March 2025 This is the 9th newsletter for the At the End of the World research program, housed at Lund University. It is the first newsletter from our third year of activity. If you’re receiving this email, it’s because you’ve subscribed to our mailing list. Below, we’ll fill you in on some upcoming events and also what we've been up to since the last newsle

https://www.endoftheworld.lu.se/at-the-end-of-the-world-newsletter-15-march-2025/ - 2026-05-21

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DAY 0 WEDNESDAY 14th AUGUST 2024 Time Foyer/out Auditorium Room H135a Room H135b Room H140 16:00-19:00 Pre- conference registration DAY 1 - THURSDAY 15th AUGUST 2024 Time Foyer/out Auditorium Room H135a Room H135b Room H140 8:00-8:45 Registration 8:45-9:00 Conference opening: Jordan Zlatev (Auditorium) 9:00-10:00 Plenary: Elena Cuffari: Autonomy, participation, and sense-making as sites of crisis

https://konferens.ht.lu.se/fileadmin/user_upload/conference/iacs5/programIACS-5_2024-08-14.pdf - 2026-05-30

In this webpage, you can find publications authored and co-authored by RWI researchers and practitio

In this webpage, you can find publications authored and co-authored by RWI researchers and practitioners - The Raoul Wallenberg Institute of Human Rights and Humanitarian Law Skip to content Search for: Search Button Home About Us Who We Are Our History About Raoul Wallenberg Our Theory of Change Staff Opportunities Annual Reports Whistleblower Our work What we do Multi-Disciplinary Research Highe

https://rwi.lu.se/further-reading-biodiversity/ - 2026-05-30

Bookphoria with Victoria – On Social Justice - The Raoul Wallenberg Institute of Human Rights and Hu

Bookphoria with Victoria – On Social Justice - The Raoul Wallenberg Institute of Human Rights and Humanitarian Law Skip to content Search for: Search Button Home About Us Who We Are Our History About Raoul Wallenberg Our Theory of Change Staff Opportunities Annual Reports Whistleblower Our work What we do Multi-Disciplinary Research Higher Education Strategic Advice and Analysis Outreach Evaluatio

https://rwi.lu.se/blog/bookphoria-with-victoria-on-social-justice/ - 2026-05-30

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1 CV Henrik Andersson Appointments and positions Spring 2023 – Spring 2025: Researcher at Lund University as an associate professor Spring 2022 – Fall 2023: Post doc at Lund University and University of Colorado, Boulder. Fall 2021: Parental leave Summer 2020 – Spring 2021: Post doc at Lund University. Spring 2020: Researcher at Lund University. Fall 2019: Researcher at the Institute for Futures S

https://www.fil.lu.se/media/documents/persons/HenrikAndersson/CV_juni_2024.pdf - 2026-05-30

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Språk- och l i t te ra turcentrum Öst- och Centra leuropakunskap Litteraturlista för Politik, kultur och identitet i Ryssland, Ukraina och andra postsovjetiska stater, 15 högskolepoäng (ÖCKB14) Fastställd av styrelsen för sektion 5, 2018-12-06. Reviderad av styrelsen för sektion 5, 2024-12-04 Litteraturlista (obligatorisk läsning) Delkurs 1 Beissinger, Mark R: Nationalism and the Collapse of Commu

https://www.sol.lu.se/media/utbildning/dokument/kurser/OCKB14/20261/OCKB14_Literature_List.2026.pdf - 2026-05-30