中文
相关论文

相关论文: EPS09s and EKS98s: Impact parameter dependent nPDF…

200 篇论文

As all the globally fitted nuclear PDFs (nPDFs) have been so far impact parameter independent, it has not been possible to calculate the hard process cross sections in different centrality classes consistently with the global analyses. In…

高能物理 - 唯象学 · 物理学 2015-06-11 Ilkka Helenius , Kari J. Eskola , Heli Honkanen , Carlos A. Salgado

We determine the spatial (impact parameter) dependence of nuclear parton distribution functions (nPDFs) using the $A$-dependence of the spatially independent (averaged) global fits EPS09 and EKS98. We work under the assumption that the…

高能物理 - 唯象学 · 物理学 2015-06-05 Ilkka Helenius , Kari J. Eskola , Heli Honkanen , Carlos A. Salgado

So far the nuclear PDFs (nPDFs) in the global DGLAP fits have been taken to be spatially independent. In this work, using the $A$-dependence of the globally fitted sets EPS09 and EKS98, we have determined the spatial dependence of the nPDFs…

高能物理 - 唯象学 · 物理学 2012-10-05 Ilkka Helenius , Kari J. Eskola , Heli Honkanen , Carlos A. Salgado

The centrality dependencies of the inclusive neutral pion and prompt photon nuclear modification factors for p+Pb collisions at the LHC are studied using a spatially dependent set of nuclear PDFs, EPS09s. The calculations are performed at…

高能物理 - 唯象学 · 物理学 2015-06-18 Ilkka Helenius , Kari J. Eskola , Hannu Paukkunen

In this review talk I discuss the latest developments in the DGLAP-based global analysis of nuclear parton distribution functions (nPDFs), focusing on the recent EPS09, nCTEQ and DSSZ global fits. I also briefly review the recent analysis…

高能物理 - 唯象学 · 物理学 2012-09-10 Kari J. Eskola

In this talk, we introduce our recently completed next-to-leading order (NLO) global analysis of the nuclear parton distribution functions (nPDFs) called EPS09 - a higher order successor to the well-known leading-order (LO) analysis EKS98…

高能物理 - 唯象学 · 物理学 2014-11-18 H. Paukkunen , K. J. Eskola , C. A. Salgado

We present a next-to-leading order (NLO) global DGLAP analysis of nuclear parton distribution functions (nPDFs) and their uncertainties. Carrying out an NLO nPDF analysis for the first time with three different types of experimental input…

高能物理 - 唯象学 · 物理学 2009-04-22 K. J. Eskola , H. Paukkunen , C. A. Salgado

The presence of nuclear medium and collective phenomena which involve several nucleons modify the parton distribution functions of nuclei (nPDFs) compared to those of a free nucleon. These modifications have been investigated by different…

高能物理 - 唯象学 · 物理学 2013-11-11 H. Honkanen , M. Strikman , V. Guzey

In this talk, we present our recent next-to-leading order (NLO) nuclear parton distribution functions (nPDFs), which we call EPS09. As an extension to earlier NLO analyses, we supplement the deep inelastic scattering and Drell-Yan dilepton…

高能物理 - 唯象学 · 物理学 2009-11-18 Kari J. Eskola , Hannu Paukkunen , Carlos A. Salgado

In this talk, we present our recent work on next-to-leading order (NLO) nuclear parton distribution functions (nPDFs), which we call EPS09. As an extension to earlier NLO analyses, we complement the deep inelastic scattering and Drell-Yan…

高能物理 - 唯象学 · 物理学 2009-06-17 Kari J. Eskola , Hannu Paukkunen , Carlos A. Salgado

We review the current status of the global DGLAP analysis of nuclear parton distribution functions, nPDFs, focusing on the recent EPS09 analysis, whose output, EPS09NLO, is the best-constrained NLO nPDF set on the market. Collinear…

高能物理 - 唯象学 · 物理学 2015-05-20 K. J. Eskola , H. Paukkunen , C. A. Salgado

Nuclear modification factors of inclusive prompt photon production in d-Au collisions at RHIC and p-Pb collisions at the LHC are provided at different rapidities. The calculations are performed at NLO accuracy using the EPS09 NLO nuclear…

高能物理 - 唯象学 · 物理学 2015-05-27 Francois Arleo , Kari J. Eskola , Hannu Paukkunen , Carlos A. Salgado

We propose a new method to determine the spatially or impact-parameter dependent nuclear parton distribution functions (nPDFs) using the double parton scattering (DPS) processes in high-energy heavy-ion (proton-nucleus and nucleus-nucleus)…

高能物理 - 唯象学 · 物理学 2020-03-27 Hua-Sheng Shao

We present an updated determination of nuclear parton distributions (nPDFs) from a global NLO QCD analysis of hard processes in fixed-target lepton-nucleus and proton-nucleus together with collider proton-nucleus experiments. In addition to…

高能物理 - 唯象学 · 物理学 2022-05-27 Rabah Abdul Khalek , Rhorry Gauld , Tommaso Giani , Emanuele R. Nocera , Tanjona R. Rabemananjara , Juan Rojo

We present an updated global analysis of collinearly factorized nuclear parton distribution functions (PDFs) at next-to-leading order in perturbative QCD. In comparison to our previous fit, EPPS16, the present analysis includes more data…

高能物理 - 唯象学 · 物理学 2022-05-25 Kari J. Eskola , Petja Paakkinen , Hannu Paukkunen , Carlos A. Salgado

We present results of our recent EPPS16 global analysis of NLO nuclear parton distribution functions (nPDFs). For the first time, dijet and heavy gauge boson production data from LHC proton-lead collisions have been included in a global…

高能物理 - 唯象学 · 物理学 2017-10-17 Kari J. Eskola , Petja Paakkinen , Hannu Paukkunen , Carlos A. Salgado

The recent global analyses of the nuclear parton distribution functions (nPDFs) lend support to the validity of the factorization theorem of QCD in high-energy processes involving bound nucleons. With a special attention on our latest…

高能物理 - 唯象学 · 物理学 2011-04-22 Hannu Paukkunen , Carlos A. Salgado , Kari J. Eskola

We quantify the impact of unpolarized lepton-proton and lepton-nucleus inclusive deep-inelastic scattering (DIS) cross section measurements from the future Electron-Ion Collider (EIC) on the proton and nuclear parton distribution functions…

高能物理 - 唯象学 · 物理学 2021-05-19 Rabah Abdul Khalek , Jacob J. Ethier , Emanuele R. Nocera , Juan Rojo

We present new NLO pQCD predictions for photoproduction of dijets in ultraperipheral PbPb collisions at 5.02 TeV with a realistic photon flux and up-to-date nuclear PDFs. Our calculation of the impact parameter dependence of the photon flux…

高能物理 - 唯象学 · 物理学 2023-11-30 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

We calculate the centrality dependence of the midrapidity nuclear modification for inclusive prompt photon production in d+Au and Au+Au collisions at RHIC and in p+Pb and Pb+Pb collisions at the LHC. Our results, using the recent spatially…

高能物理 - 唯象学 · 物理学 2015-06-15 Ilkka Helenius , Kari J. Eskola , Hannu Paukkunen
‹ 上一页 1 2 3 10 下一页 ›