Direct Photon Production and Azimuthal Anisotropy at Low Transverse Momentum measured in PHENIX
نویسندگان
چکیده
منابع مشابه
Direct Photon-Hadron Correlations Measured with PHENIX
Direct photon-hadron correlations greatly improve our ability to perform jet tomography in heavy-ion collisions because the momentum of the direct photon can be used to constrain the initial momentum of the opposing jet. By comparing the spectrum of away-side hadrons observed in heavy ion collisions to the spectrum seen in nucleon collisions we can quantify the medium modification to the fragme...
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Event anisotropy is expected to have sensitivity to the early stage of ultra-relativistic heavy-ion collisions at RHIC. The possible formation of a quark gluon plasma (QGP) could affect how the initial anisotropy in the space coordinate is transferred into the momentum space for the final state. The anisotropy parameter (v2) is an amplitude of the 2nd harmonic parameter of the azimuthal distrib...
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The PHENIX Experiment at the Relativistic Heavy Ion Collider has conducted a survey of fluctuations in charged hadron multiplicity in Au+Au and Cu+Cu collisions at √ sNN = 22, 62, and 200 GeV. A universal power law scaling for multiplicity fluctuations expressed as σ2/μ2 is observed as a function of Npart for all species studied that is independent of the transverse momentum range of the measur...
متن کاملLarge transverse momentum direct photon production in the coherent diffractive processes at hadron colliders
Direct photon production at large transverse momentum in the coherent diffractive processes at hadron colliders is calculated in the two-gluon exchange model. We find that the amplitude for the production process is related to the differential off-diagonal gluon distribution function in the proton. We estimate the production rate at the Fermilab Tevatron by approximately using the usual gluon d...
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Citation Abelev, B. et al. " Inclusive ^{0}, , and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV. " Physical Review C 81.6 (2010): n. pag. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article...
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ژورنال
عنوان ژورنال: Nuclear and Particle Physics Proceedings
سال: 2017
ISSN: 2405-6014
DOI: 10.1016/j.nuclphysbps.2017.05.032