2,353 research outputs found
Heavy-Flavour Production in Pb-Pb collisions at the LHC with ALICE
Results on open heavy-flavour production in Pb-Pb collisions at sqrt{s_NN} =
2.76 TeV measured with ALICE at the LHC are presented. The nuclear modification
factors, extracted in three different channels, show a strong suppression in
central collisions. The measured D-meson azimuthal anisotropy indicates a
non-zero v2, which is similar to the one of charged hadrons.Comment: 4 pages, 3 figures, conference proceedings PLH
Physics with the ALICE Transition Radiation Detector
The ALICE Transition Radiation Detector (TRD) significantly enlarges the
scope of physics observables studied in ALICE, because it allows due to its
electron identification capability to measure open heavy-flavour production and
quarkonium states, which are essential probes to characterize the
Quark-Gluon-Plasma created in nucleus-nucleus collisions at LHC. In addition
the TRD enables to enhance rare probes due to its trigger contributions. We
report on the first results of the electron identification capability of the
ALICE Transition Radiation Detector (TRD) in pp collisions at = 7
TeV using a one-dimensional likelihood method on integrated charge measured in
each TRD chamber. The analysis of heavy flavour production in pp collisions at
= 7 TeV with this particle identification method, which extends the
range of the existing measurement from = 4 GeV/c to 10 GeV/c
and reduces the systematic uncertainty due to particle identification, is
presented. The performance of the application of the TRD electron
identification in the context of J/\psi measurements in Pb-Pb collisions is
also shown.Comment: 6 pages; 9 figures; conference proceedings: TRDs for the third
Millennium 4th Workshop on Advanced Transition Radiation Detectors for
Accelerator and Space Application
Heavy Flavours in ALICE
The measurement of heavy-flavour production allows us to characterise the
properties of the deconfined medium created in Pb-Pb collisions at LHC
energies. pp collisions serve as a reference for Pb-Pb studies, and p-Pb
collisions provide information on initial and/or final state effects related to
cold nuclear matter. We report on open heavy-flavour as well as quarkonium
production in p-Pb collisions at = 5.02 TeV. The
experimental data are compared with results from Pb-Pb collisions as well as
with various theoretical predictions.Comment: 4 pages, 9 figures, Conference proceedings, 49th Rencontres de
Moriond, QCD and High Energy Interactions sessio
Particle Identification with the ALICE Transition Radiation Detector
The Transition Radiation Detector (TRD) provides particle identification in
the ALICE central barrel. In particular, it allows electron identification via
the measurement of transition radiation for 1 GeV/, where pions
can no longer be rejected sufficiently via specific energy loss in the ALICE
Time Projection Chamber. The ALICE TRD is uniquely designed to record the time
evolution of the signal, which allows even better electron/pion separation. In
addition, the electron identification capability of the TRD can be used on-line
to trigger at level 1. The particle identification and its performance in pp,
p-Pb and Pb-Pb collisions employing various methods, such as truncated mean
signal, one- and two-dimensional likelihood on integrated charge and neural
network, will be presented. The measurement of J/ mesons in Pb-Pb
collisions is given as a case study to show how well the TRD contributes to
physics analyses due to its excellent pion suppression.Comment: 4 pages; 7 figures, Proceedings of RICH2013 Conference, 2-6 Dec 201
Dielectron Production in C+C Collisions at 1 GeV/u and the Solution to the DLS Puzzle
The production of e+e- pairs in C+C collisions at 1 GeV/u was investigated
with the HADES experiment at GSI, Darmstadt. In the invariant-mass region the measured pair yield
shows a strong excess above the contribution expected from hadron decays after
freeze-out. The data are in good agreement with the results of the former DLS
experiment for the same system and energy.Comment: 6 pages, 3 figures, conference proceedings: Quark Matter 2008, Jaipur
(India), 4-10 February 2008, submitted to J. Phys. G: Nuclear and Particle
Physic
Tourism Stakeholder Assessment - Presentation
The Tourism Stakeholder Assessment Project was undertaken partly in response to anecdotal evidence regarding inconsistencies with branding, lack of strategic direction, and regional cooperation that affects the overall competitiveness of the tourism industry in Humboldt County, CA. The goal of the project was to better understand the state of the tourism industry in Humboldt County and what steps can be taken to keep improving the industry. The presentation contains results presented at a public meeting in spring 2019
Resident Attitude Towards Tourism in Humboldt County California
The primary purpose of this study was to investigate both resident attitudes toward tourism in general and resident attitudes towards cannabis tourism in Humboldt County, California. The survey was of adult individuals residing in any part of Humboldt County, California. Between March 2017 and August 2017, county residents were targeted to complete the survey either through an in‐person or online questionnaire
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Photo elicitation in tourism research: investigating the travel experiences of study abroad participants
Photo elicitation is a natural research technique for the field of tourism as most tourists take photographs to document their travel. Viewing photographs can often enhance memories and the impact of photos on memory is especially useful in the interview process. Among other benefits of the photo elicitation method, a participant may answer questions in greater detail when presented with a photograph as the photo can help the mind recall experiences more clearly and deeply (Cederholm, 2004; Clark-Ibanez, 2004). This paper presents the advantages and disadvantages of the photo elicitation method, how the method was used in a study on the travel experiences of study abroad participants, and a discussion on the impact of the method on the study
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The Impact of Visualization and Expectation on Tourists’ Emotion and Satisfaction at the Destination
As tourist satisfaction is a clear goal in the tourism industry it is important to examine the consumers’ psychological process during the pre or post consumption experience including visualization, expectation, emotion and satisfaction of the destination. The current study seeks to show how novelty seekers who engage in visualization create expectations about a destination, and how it can enhance their positive arousal and emotion about the overall trip, ultimately leading to satisfaction with the destination. Managers should recognize how satisfaction, motivation, visualization, expectation, arousal and emotion are associated in order to provide a satisfying experience to tourist
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