eRHIC Design Study: An Electron-Ion Collider at BNL

Aschenauer, E. C.; Baker, M. D.; Bazilevsky, A.; Boyle, K.; Belomestnykh, S.; Ben‐Zvi, I.; Brooks, Stephen J.; Brutus, C.; Burton, T. P.; Fazio, S.; Fedotov, A.; Gassner, D.; Hao, Yue; Jing, Yichao; Kayran, D.; Kiselev, A.; Lamont, M. A.C.; Lee, J. -H.; Litvinenko, Vladimir; C., Liu,; Ludlam, T.; Mahler, G.; McIntyre, G.; Meng, W.; Méot, F.; Miller, Toby; Minty, M.; Parker, B.; Petti, R.; Pinayev, I.; Ptitsyn, V.; Roser, T.; Stratmann, M.; Sichtermann, E. P.; Skaritka, J.; O., Tchoubar,; Thieberger, P.; Toll, T.; Trbojević, D.; Tsoupas, N.; Tuozzolo, J.; Ullrich, T.; Wang, E.; Wang, G.; Wu, Qiong; Xu, Wencan; Zheng, Lei

doi:10.48550/arxiv.1409.1633

Cited by 55 publications

(67 citation statements)

References 80 publications

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“…The initial scales are given in Table II. The PDFs are evolved to final scales 20, 80, and 1500 GeV which are the relevant scales for the Electron Ion Collider in China (EicC) [78], the electron-Relativistic Heavy Ion Collider (eRHIC) [79] and the Jefferson Lab Electron Ion Collider (JLEIC) [80], and the Large Hadron Electron Collider (LHeC) [81], respectively. Here, we consider the range x ≥ 10 −3 .…”

Section: B Qcd Evolution Of Heavy Meson Pdfsmentioning

confidence: 99%

Parton distribution functions of heavy mesons on the light front

Lan

Mondal

et al. 2020

Phys. Rev. D

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The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigenstates from an effective Hamiltonian consisting of the confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with running coupling. We present the gluon and the sea quark PDFs which we generate dynamically from the QCD evolution of the valence quark distributions.

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Section: B Qcd Evolution Of Heavy Meson Pdfsmentioning

confidence: 99%

Parton distribution functions of heavy mesons on the light front

Lan

Mondal

et al. 2020

Phys. Rev. D

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“…However, the nonperturbative effects can not be neglected for the higher |q qG component. Consequently, for Q 2 1/r 2 0 = b 2 0 ≈ 0.45 GeV 2 the mean q q transverse size squared (see Eq. (2.8)) r 2 q q r 2 0 .…”

Section: R 2gmentioning

confidence: 99%

“…One of the main topic, which is proposed to be studied by the future experiments at electron-ion colliders (EICs) [1][2][3][4] using present RHIC and LHC facilities, represents the nuclear shadowing at small values of Bjorken x Bj . This gives the main motivation for study of possible sources causing a suppression not only in deep-inelastic scattering (DIS) off nuclei (see [5,6], for example), but also in other exclusive processes at large energies, like diffractive photo-and electroproduction of vector mesons on nuclei (see [7][8][9][10][11], for example), the Drell-Yan process (see [12][13][14], for example), as well as the inclusive hadron production in proton-nucleus collisions (see [15][16][17], for example).…”

Section: Introductionmentioning

confidence: 99%

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Nuclear shadowing in DIS at electron-ion colliders

Krelina,

Nemchik

2020

Preprint

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We present a revision of predictions for nuclear shadowing in deep-inelastic scattering at small Bjorken x Bj corresponding to kinematic regions accessible by the future experiments at electron-ion colliders. The nuclear shadowing is treated within the color dipole formalism based on the rigorous Green function technique. This allows incorporating naturally color transparency and coherence length effects, which are not consistently and properly included in present calculations. For the lowest |q q Fock component of the photon, our calculations are based on an exact numerical solution of the evolution equation for the Green function. Here the magnitude of shadowing is tested using a realistic form for the nuclear density function, as well as various phenomenological models for the dipole cross section. The corresponding variation of the transverse size of the q q photon fluctuations is important for x Bj ∼ > 10 −4 , on the contrary with the most of other models, which use frequently only the eikonal approximation with the "frozen" transverse size. At x Bj ∼ < 0.01 we calculate within the same formalism also a shadowing correction for the higher Fock component of the photon containing gluons. The corresponding magnitudes of gluon shadowing correction are compared adopting different phenomenological dipole models. Our results are tested by available data from the E665 and NMC collaborations. Finally, the magnitude of nuclear shadowing is predicted for various kinematic regions that should be scanned by the future experiments at electron-ion colliders.

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“…More specifically, the EIC will probe with unprecedented precision the low Bjorken-x domain where gluons and sea quarks dominate for both nucleons and nuclei. A possible realization of the accelerator facility based on the (currently operating) Relativistic Heavy Ion Collider (RHIC), called eRHIC, has been proposed [2]. The Solenoidal Tracker at RHIC (STAR) detector, one of the two major experiments at RHIC, has been planned to evolve into eSTAR with a suite of upgrades optimized for the EIC physics program.…”

Section: Introductionmentioning

confidence: 99%

Cosmic ray test of mini-drift thick gas electron multiplier chamber for transition radiation detector

Yang

Das

Buck

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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A thick gas electron multiplier (THGEM) chamber with an effective readout area of 10×10 cm 2 and a 11.3 mm ionization gap has been tested along with two regular gas electron multiplier (GEM) chambers in a cosmic ray test system. The thick ionization gap makes the THGEM chamber a minidrift chamber. This kind mini-drift THGEM chamber is proposed as part of a transition radiation detector (TRD) for identifying electrons at an Electron Ion Collider (EIC) experiment. Through this cosmic ray test, an efficiency larger than 94% and a spatial resolution ∼220 µm are achieved for the THGEM chamber at -3.65 kV. Thanks to its outstanding spatial resolution and thick ionization gap, the THGEM chamber shows excellent track reconstruction capability. The gain uniformity and stability of the THGEM chamber are also presented.

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eRHIC Design Study: An Electron-Ion Collider at BNL

Cited by 55 publications

References 80 publications

Parton distribution functions of heavy mesons on the light front

Parton distribution functions of heavy mesons on the light front

Nuclear shadowing in DIS at electron-ion colliders

Cosmic ray test of mini-drift thick gas electron multiplier chamber for transition radiation detector

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