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Diffractive photoproduction of rho mesons with large momentum transfer at HERA

The diffractive photoproduction of rho mesons, ep -> e rho Y, with large momentum transfer squared at the proton vertex, vertical bar t vertical bar, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb(-1). The photon-proton centre of mass energy spans the range 75 < W < 95 GeV, the photon virtuality is restricted to Q(2) < 0.01 GeV2 and the mass My of the proton remn

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

Search for leptoquark bosons in ep collisions at HERA

A search for scalar and vector leptoquarks coupling to first generation fermions is performed using the e(+) p and e(-) p scattering data collected by the H1 experiment between 1994 and 2000. The data correspond to a total integrated luminosity of 117 pb(-1). No evidence for the direct or indirect production of such particles is found in data samples with a large transverse momentum final state el

Forward jet production in deep inelastic scattering at HERA

The production of forward jets has been measured in deep inelastic ep collisions at HERA. The results are presented in terms of single differential cross sections as a function of the Bjorken scaling variable (xB(j)) and as triple differential cross sections d3 sigma/dx(Bj)dQ(2)dp(t)(,jet)(2), where Q(2) is the four momentum transfer squared and p(t)(,iet)(2) is the squared transverse momentum of

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

Nasser catherine

Microsoft Word - Catherine_Nasser.doc International Masters in Environmental Science The Road towards Sustainable Transportation in the USA: Exploring the feasibility to enhance non-motorized modes in the case of Scranton, Pennsylvania Catherine J. Nasser Kämnärsvägen 7G: 319 226 46 Lund, Sweden katienasser@aol.com Submitted in partial fulfillment of the requirements for International Masters in E

https://www.lumes.lu.se/sites/lumes.lu.se/files/nasser_catherine.pdf - 2026-06-22

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

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

Upptecknaren 2011 v3.indd

Upptecknaren 2011 v3.indd 1 Innehåll 3 I Agatha Christies fotspår Charlotte Hagström & Carina Sjöholm 17 Refl ektioner runt ett dokumentationsprojekt Marcus Marcusson 27 Frågelistor och dokumentation 2010 Charlotte Hagström 33 Folklivsarkivets verksamhet 2010 Göran Sjögård 47 Skånes musiksamlingars verksamhet 2010 Patrik Sandgren 2 3 I Agatha Christies fotspår Charlotte Hagström & Carina Sjöholm E

https://www.folklivsarkivet.lu.se/fileadmin/user_upload/folklivsarkivet/upload/Upptecknaren/Upptecknaren_nr_8_2010.pdf - 2026-06-22

Microsoft Word - rapport 20080215.doc

Microsoft Word - rapport 20080215.doc Master’s Dissertation Structural Mechanics JOHAN DAHLBERG och JOHAN HEDLUND GRUNDFÖRSTÄRKNING MED STENPELARE Introduktion och beräkningsmodell Copyright © 2008 by Structural Mechanics, LTH, Sweden. Printed by KFS I Lund AB, Lund, Sweden, March, 2008. For information, address: Division of Structural Mechanics, LTH, Lund University, Box 118, SE-221 00 Lund, Swed

https://www.byggmek.lth.se/fileadmin/byggnadsmekanik/publications/tvsm5000/web5156.pdf - 2026-06-22

Microsoft Word - MWB Visuell kommunikation.doc

Microsoft Word - MWB Visuell kommunikation.doc LTHs 10:e Pedagogiska Inspirationskonferens, 6 december 2018 Abstract—Digitaliseringen av arbetslivet skapar höga förväntningar på flexibilitet och utveckling, men har även medfört en komplex informationshantering och en pressad digital arbetsmiljö. En medveten visualisering av information kan dock förtydliga och förenkla. En enkätundersökning bland i

https://www.lth.se/fileadmin/lth/genombrottet/konferens2018/E4_WidellBlome__.pdf - 2026-06-09

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OKTOBER Hejsan kära läsare! Tänk, nu kommer oktobers nummer av månadsbrevet från Modevetenskapliga Studierådet det är ju helt otroligt vad fort det går. Denna månaden har det varit fullt upp med förberedelser inför det modevetenskapliga programmets 10-årsjubileum som nyss gått av stapeln vilket var något alldeles otroligt att få fira. En punkt i utställningen som hörde jubiléet till var att besöka

https://www.kultur.lu.se/fileadmin/user_upload/kultur/Utbildning/Mode_maanadsbrev/Maanadsbrev_Oktober_2022.pdf - 2026-06-20

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Dina pengar – med och utan kollektivavtal Ta gärna reda på mer om olika kollektiv- avtalade förmåner genom att besöka saco.se, knegdeg.se, ersattningskollen. se och minpension.se. Illustration: Kari Modén Uppdaterad mars 2023 Kollektivavtal – din försäkring genom hela karriären Den här skriften är för dig som är akademiker och som vill veta mer om vad ett kollektivavtal är och vad det kan betyda f

https://www.saco.se/globalassets/bilder-video-och-dokument/trycksaker--profilprodukter/foldrar--broschyrer/dina-pengar/2023-dina-pengar.pdf - 2026-06-21

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KALLELSE TILL SACORÅDETS ÅRSMÖTE 2024 Tid: Onsdagen den 10 april kl. 17.30 Plats: Fackligalokalen på Renmarkstorget 8, 3 tr Program: Årsmöte Anmälan: Senast 2024-04-05 till Eva Österlund, eva.osterlund@umea.se. Sacorådets uppgifter är bland annat att handlägga de frågor som enskilt förbund delegerar och att vara förbundens kontaktorgan i frågor som är av gemensamt och övergripande intresse. Rådet

https://www.saco.se/globalassets/lokala-akademikerforeningar/kommun-och-region/umea-kommun/dokument/kallelse-arsmote-sacoradet-2024.pdf - 2026-06-21

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Dina pengar – med och utan kollektivavtal Ta gärna reda på mer om olika kollektivavtalade förmåner genom att besöka saco.se, knegdeg.se, ersatt- ningskollen.se och minpension.se. Illustration: Kari Modén Uppdaterad jan 2022 Kollektivavtal – din försäkring genom hela karriären Den här skriften är för dig som är akademiker och som vill veta mer om vad ett kollektivavtal är och vad det kan betyda för

https://www.saco.se/globalassets/lokala-akademikerforeningar/statlig/goteborgs-universitet/dokument/2022-dina-pengar.pdf - 2026-06-21