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Erişime Açık

Azimuthal anisotropy of D-meson production in Pb-Pb collisions at √sN N = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The production of the prompt charmed mesons D0, D+, and D∗+ relative to the reaction plane was measured in Pb-Pbcollisionsatacenter-of-massenergypernucleon-nucleoncollisionof√sNN =2.76TeVwiththeALICE detector at the CERN Large Hadron Collider. D mesons were reconstructed via their hadronic decays at central rapidity in the transverse-momentum (pT ) interval 2–16 GeV/c. The azimuthal anisotropy is quantified in terms of the second coefficient v2 in a Fourier expansion of the D-meson azimuthal distribution and in terms of the nuclear modification factor RAA, measured in the direction of the reac ...Daha fazlası

Erişime Açık

Event-by-event mean pT fluctuations in pp and Pb–Pb collisions at the LHC

KARASU UYSAL, Ayben | ALICE Collaboration

Event-by-event fluctuations of the mean trans- verse momentum of charged particles produced in pp colli- sions at √s = 0.9, 2.76 and 7 TeV, and Pb–Pb collisions at √sNN = 2.76 TeV are studied as a function of the charged- particle multiplicity using the ALICE detector at the LHC. Dynamical fluctuations indicative of correlated particle emis- sion are observed in all systems. The results in pp collisions show little dependence on collision energy. The Monte Carlo event generators PYTHIA and PHOJET are in qualitative agreement with the data. Peripheral Pb–Pb data exhibit a sim- ilar multiplicity ...Daha fazlası

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A Production Base On The Silk Road Anevaluation On The Development Of Chinese Economy

AFŞAR, Bilge

In the recent years, one of the most spoken issues, not only spoken about them bıt also the most discussed ones, is Chinese economy. When Chinese economy is examined, it is seen that it is a dynamic that is growing the most rapidly all over the word. Especially, with the reforms it realized beginning from 1978, China became the most exporting country and the most attracting foreign capital in the world, following USA. The aim of this study, by examining, in particular, the last 30 years of enormous Chinese economy, is to assess the process from less developedness to becoming the production bas ...Daha fazlası

Erişime Açık

Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Transverse momentum spectra of π±, K± and p(p ̄) up to pT = 20 GeV/c at mid-rapidity in pp, peripheral (60–80%) and central (0–5%) Pb–Pb collisions at √sNN = 2.76 TeV have been measured using the ALICE detector at the Large Hadron Collider. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT ≈ 3 GeV/c in central Pb–Pb collisions. Below the peak, pT < 3 GeV/c, both ratios are in good agreement with hydrodynamical calculations, suggesting that the peak itself is dominantly the result of radial flow rather than anomalous hadronization processes. For pT > 10 GeV/c partic ...Daha fazlası

Erişime Açık

Measurement of charged jet suppression in Pb-Pb collisions at √sNN = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

A measurement of the transverse momentum spectra of jets in Pb–Pb col- lisions at √sNN = 2.76TeV is reported. Jets are reconstructed from charged particles using the anti-kT jet algorithm with jet resolution parameters R of 0.2 and 0.3 in pseudo- rapidity |η| < 0.5. The transverse momentum pT of charged particles is measured down to 0.15 GeV/c which gives access to the low pT fragments of the jet. Jets found in heavy-ion collisions are corrected event-by-event for average background density and on an inclusive basis (via unfolding) for residual background fluctuations and detector effects. A s ...Daha fazlası

Erişime Açık

Measurement of visible cross sections in proton-lead collisions at √sNN = 5.02 TeV in van der Meer scans with the ALICE detector

KARASU UYSAL, Ayben | ALICE Collaboration

In 2013, the Large Hadron Collid√er provided proton-lead and lead-proton collisions at the center-of-mass energy per nucleon pair sNN = 5.02 TeV . Van der Meer scans were per- formed for both configurations of colliding beams, and the cross section was measured for two reference processes, based on particle detection by the T0 and V0 detectors, with pseudo-rapidity coverage 4.6

Erişime Açık

Measurement of quarkonium production at forward rapidity in pp collisions at √s = 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Abstract The inclusive production cross sections at for- ward rapidity of J/ψ , ψ (2S), Υ (1S) and Υ (2S) are measured in pp collisions at √s = 7 TeV with the ALICE detector at the LHC. The analysis is based on a data sample corre- sponding to an integrated luminosity of 1.35 pb−1. Quarko- nia are reconstructed in the dimuon-decay channel and the signal yields are evaluated by fitting the μ+μ− invariant mass distributions. The differential production cross sections are measured as a function of the transverse momentum pT and rapidity y, over the ranges 0 < pT < 20 GeV/c for J/ψ, 0 < pT < 12 Ge ...Daha fazlası

Erişime Açık

Performance of the ALICE experiment at the CERN LHC

KARASU UYSAL, Ayben | ALICE Collaboration

ALICE is the heavy-ion experiment at the CERN Large Hadron Collider. The experiment continuously took data during the first physics campaign of the machine from fall 2009 until early 2013, using proton and lead-ion beams. In this paper we describe the running environment and the data handling procedures, and discuss the performance of the ALICE detectors and analysis methods for various physics observables.

Erişime Açık

Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays

KARASU UYSAL, Ayben | ALICE Collaboration

The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| < 0.8 and transverse momentum 1 < pT < 10 GeV/c, in pp collisions at √ s = 2.76 TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay elect ...Daha fazlası

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Matematik Öğretmen Adaylarının Lineer Kongrüanslara İlişkin Soyutlamayı İndirgeme Eğilimleri

ŞENAY, Şaban Can | ÖZDEMİR, Ahmet Şükrü

Öz: Matematik öğretmen adaylarının lisans eğitimi süresince alan bilgilerinin şekillenmesinde önemli rolü olan derslerden birisi de Sayılar Teorisi dersidir. Bu çalışmada, matematik öğretmen adaylarının, Sayılar Teorisi dersi kapsamında verilen lineer kongrüanslar ile ilgili algılayışları, Hazzan’ın (1999) geliştirdiği soyutlamanın indirgenmesi teorisi çerçevesinde incelenmiştir. Soyutlamanın indirgenmesi düşüncesi öğrencilerin, kavramların derste verildiği soyutlama seviyesinden daha düşük seviyedeki bir soyutlamayla çalışma eğilimlerine dayanmaktadır. Araştırmamızda, ilköğretim ve ortaöğreti ...Daha fazlası

Erişime Açık

The Relationship Between Mobbing and Employee Mental Health

ASLAN, Şebnem | AKARÇAY, Demet

In the recent years, the negative effects of mobbing on employee health have been frequently expressed. For these reason, the objective of the study was stated to investigate whether mobbing has effects on employee health. The study was conducted in Konya, a province of Turkey among 181 healthcare employees. In the study Grunau’s (2007) Work Harassment scale, Arrindell, Heesink ve Feij’s (1999) The Satisfaction with Life Scale (SWLS) and Ryff's Psychological Well-Being, and Kevin’s (2000) Well-Being at Work scales were used. In the result of the study, it was determined that mobbing affected l ...Daha fazlası

Erişime Açık

Neutral pion production at midrapidity in pp and Pb–Pb collisions at √sNN = 2.76 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6 < pT < 12 GeV/c measured in Pb–Pb collisions at √sNN = 2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured in the range 0.4 < pT < 10 GeV/c at the same centerof-mass energy. The nuclear modification factor, RAA, shows a suppression of neutral pions in central Pb–Pb collisions by a factor of up to about 8−10 for 5 pT 7 GeV/c. The presented measurements are compared with results at lower center-of-mass energies and with theoretical calculations

6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve cerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

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