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A search for events with an imbalance in transverse momentum and with isolated high energy leptons has been carried out at the positron-proton collider HERA. One event with an e ? and five events with a are found together with evidence for undetected particles carrying transverse momentum. Within the Standard Model the dominant origin of events with this(More)
A thrust analysis of Large-Rapidity-Gap events in deep-inelastic ep collisions is presented , using data taken with the H1 detector at HERA in 1994. The average thrust of the nal states X, which emerge from the dissociation of virtual photons in the range 10 < Q 2 < 100 GeV 2 , grows with hadronic mass M X and implies a dominant 2-jet topology. Thrust is(More)
Deep-inelastic Ô scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, parameter and two kinds of differential two-jet rate. The data cover a large range of the four-momentum transfer É, which is considered to be the relevant energy scale, between Î and ½¼¼ Î. The É dependences of(More)
A search for excited fermions ¢ ¡ of the first generation in £ ¤ ¦ ¥ scattering at the col-lider HERA is presented using H1 data with an integrated luminosity of 37 pb § ¨. All electroweak decays of excited fermions, © ¡ ¢ © ! are considered and all possible final states resulting from the ! or hadronic decays or decays into leptons of the first two(More)
The primary aim of ANTARES is neutrino astronomy with upward going muons created in charged current muon neutrino interactions in the detector and its surroundings. Downward going muons are background for neutrino searches. These muons are the decay products of cosmic-ray collisions in the Earth's atmosphere far above the detector. This paper presents a(More)
Despite dedicated research has been carried out to adequately map the distribution of the sperm whale in the Mediterranean Sea, unlike other regions of the world, the species population status is still presently uncertain. The analysis of two years of continuous acoustic data provided by the ANTARES neutrino telescope revealed the year-round presence of(More)
The elastic electroproduction of mesons is studied at HERA with the H1 detector for photon virtualities ½ É ¾ ½½ Î ¾ and hadronic centre of mass energies ¼ Ï ½¿¼ GeV. The É ¾ and Ø dependences of the cross section are extracted (Ø being the square of the four-momentum transfer to the target proton). When plotted as function of (É ¾ + Å ¾ Î) and scaled by(More)