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Showing 1 to 17 of 17 for “"Phobos"”.
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Natural and artificial orbits around the Martian moon Phobos
… exploration of the Martian moons. In particular, Phobos is becoming an appealing destination for future scientific missions of NASA and ESA. Phobos is a tiny celestial body that orbits around Mars at low altitude. The unique combination of these two characteristics yields the sphere of influence …
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Atmospheric contribution to the dissipation of the gravitational tide of Phobos on Mars
… contribution to the tidal dissipation of the Phobos-Mars system. We apply the classical tidal theory and we find that most of gravitational forcing is projected into the first symmetric Hough mode which has an equivalent depth of about 57 km and it is significantly trapped in the vertical. …
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Studies of high transverse momentum phenomena in heavy ion collisions using the PHOBOS detector
… two such measurements are presented using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC): 1. The transverse momentum spectra of charged particles produced near mid rapidity in Cu+Cu collisions with center-of-mass energies of 62.4 and 200 GeV per nucleon pair 2. Two-particle …
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Measurement of [phi] meson production in Cu+Cu collisions at 200 GeV using the PHOBOS detector at RHIC
… Measurement of [phi] meson production using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC) has proven to be especially challenging due to a small acceptance of the PHOBOS spectrometer and due to a much lower than predicted yield of [phi] mesons in heavy ion collisions at the …
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Search for rare events in [the square root of sigma nu nu] = 200 GeV Au+Au PHOBOS data
… of sigma nu nu] = 200 GeV Au+Au collisions in PHOBOS data. We carefully remove events that may exhibit non-statistical fluctuations due to other effects, such as event pileup and detector pathology. We also use very fine binning in the z and y vertex positions to eliminate fluctuations due to …
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Materials and Surface Processes at Gale Crater and the Moons of Mars Derived from High Spatial and Spectral Resolution Orbital Datasets
… and geologic histories of Mars' moons, Phobos and Deimos, and Mt. Sharp, the destination for the Curiosity Mars rover. A final chapter focuses on Curiosity data and terrestrial analog studies to supplement orbital predictions about Mt. Sharp.</p><p>Disk-resolved hyperspectral …
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Centrality dependence of two-particle correlations in relativistic heavy ion collisions
… region of ... from data obtained by the PHOBOS experiment at RHIC. The RHIC layout and the PHOBOS detector setup is discussed. Data acquisition method employed by the PHOBOS experiment, data processing procedures and event selection criteria are presented. The two-particle correlation …
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Revealing interior structure of planetary bodies from their tidal response
… we investigate the body tide deformation of Phobos, the innermost satellite of Mars. The origin of Phobos remains enigmatic, and to advance our understanding, more information about its interior is needed. We explore what constraints the body tide response can provide regarding Phobos' …
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Identified particle transverse momentum distributions from AU + AU collisions at 62.4 GeV per nucleon pair
… for Au+Au collisions at sNN = 62.4 GeV using the PHOBOS detector at the Relativistic Heavy-Ion Collider (RHIC) in Brookhaven National Laboratory. Particle identification is performed using the PHOBOS Time-of-Flight plastic scintillator walls and specific energy loss in the multi-layer silicon …
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Relative yields of antiparticles to particles in Au+Au collisions at 130 and 200 GeV per nucleon pair
… deconfined volume is of primary importance. The PHOBOS detector was constructed to measure many observables at RHIC. The primary subsystem used in this analysis is the PHOBOS spectrometer. The spectrometer is a multiplane silicon pad detector which detects particles traversing its pads as they …
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Charged hadron transverse momentum spectra in Au+Au and d+Au collisions at 200 GeV per nucleon pair
… presents data on ... spectra collected using the PHOBOS detector at RHIC. PHOBOS is capable of measuring a wide range of momenta using a silicon based double armed spectrometer located in a strong magnetic field. The results show a strong suppression of a factor of 4 - 5 in the nuclear …
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Studies of nucleon-gold collisions at 200 GeV per nucleon pair using tagged d+Au interactions
… These measurements were performed using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC). Nucleon-nucleus interactions were extracted from the d+Au data by identifying the deuteron spectators. The deuteron spectators were measured using two calorimeters; one that detected …
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Energy and centrality dependence of mid-rapidity charged particle multiplicity in relativistic heavy-ion collisions
… measurements at RHIC from any experiment. The PHOBOS detector is used to measure the charged particle pseudo-rapidity density at mid-rapidity (i.e., in [eta] < 1) as a function of collision energy and centrality. The multiplicity is measured by counting short tracks in the silicon spectrometer; …
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Clustering phenomena from two-particle angular correlations in proton-proton and heavy ion collisions
… ([eta]) and azimuthal angle ([phi]). The PHOBOS experiment at the Relativistic Heavy Ion Collider (RHIC) has a uniquely large coverage for inclusive charged particles, giving the opportunity to explore the correlations at both short- and long-range scales. In proton-proton collisions, a …
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Elliptic flow in Au+Au collisions at 200 GeV per nucleon pair
… were measured using data collected by the PHOBOS detector during the 2001 RHIC run. The reaction plane of the collision was determined using the multiplicity detector, and the azimuthal angles of tracks reconstructed in the spectrometer were then correlated with the found reaction plane. …
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Measurement of charged particle multiplicity distribution in Au + Au collisions up to 200 GeV
… particles from hits recorded in pixels of the PHOBOS silicon multiplicity detector, after applying corrections for detector acceptance, occupancy and background particles. The collision centrality is estimated by measuring the energy deposited in scintillator trigger detectors and comparing it …
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Measurement of non-flow correlations and elliptic flow fluctuations in Au+Au collisions at RHIC
… rely on the uniquely large coverage of the PHOBOS detector at RHIC, are developed to quantify and correct for these contributions. Relative elliptic flow fluctuations of approximately 30-40% are observed in 6-45% most central Au+Au collisions at s NN= 200 GeV. These results are consistent …