Quark masses

Sanfilippo, Francesco

doi:10.22323/1.214.0014

Cited by 2 publications

(4 citation statements)

References 20 publications

(34 reference statements)

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“…Author details 1 Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China. 2 College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China.…”

Section: Competing Interestsmentioning

confidence: 99%

“…In QCD, gluons are massless due to gauge symmetry; up (u) quarks are as light as m u = 3 − 4 MeV and down (d) quarks are heavier than u-quarks, i.e., m u /m d ∼ 0.5 (see Ref. [1] for a recent review of quark masses from the lattice-QCD). The strange (s) quark mass is comparable to the typical QCD energy scale, that is, m s = 80 − 90 MeV of the same order as QCD = 100 − 200 MeV.…”

Section: Introductionmentioning

confidence: 99%

“…Here, we focus on two puzzling QCD features for the nucleons which are composed of N c valence quarks (where N c = 3 is the number of colors in QCD) and have a mass, m N 940 MeV ∼ N c QCD . The first question is how can almost massless particles form a bound state with a *Correspondence: nxu@lbl.gov 1 Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China 2 College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China Full list of author information is available at the end of the article positive binding energy? The second question is how can the nucleons become so extremely massive out of almost massless particles?…”

Section: Introductionmentioning

confidence: 99%

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The Little-Bang and the femto-nova in nucleus-nucleus collisions

Fukushima

Mohanty

2021

AAPPS Bull.

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We make a theoretical and experimental summary of the state-of-the-art status of hot and dense QCD matter studies on selected topics. We review the Beam Energy Scan program for the QCD phase diagram and present the current status of the search for the QCD critical point, particle production in high baryon density region, hypernuclei production, and global polarization effects in nucleus-nucleus collisions. The available experimental data in the strangeness sector suggests that a grand canonical approach in the thermal model at high collision energy makes a transition to the canonical ensemble behavior at low energy. We further discuss future prospects of nuclear collisions to probe properties of baryon-rich matter. Creation of a quark-gluon plasma at high temperature and low baryon density has been called the “Little-Bang” and, analogously, a femtometer-scale explosion of baryon-rich matter at lower collision energy could be called the “femto-nova”, which could possibly sustain substantial vorticity and a magnetic field for non-head-on collisions.

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Section: Competing Interestsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Little-Bang and the femto-nova in nucleus-nucleus collisions

Fukushima

Mohanty

2021

AAPPS Bull.

View full text Add to dashboard Cite

show abstract

“…In QCD gluons are massless due to gauge symmetry and up (u) quarks are as light as m u = 3 − 4 MeV and down (d) quarks are heavier than u-quarks, i.e., m u /m d ∼ 0.5 (see Ref. [1] for a recent review of quark masses from the lattice-QCD). The strange (s) quark mass is comparable to the typical QCD energy scale; that is, m s = 80 − 90 MeV of the same order as Λ QCD = 100 − 200 MeV.…”

Section: Introductionmentioning

confidence: 99%

Little-Bang and Femto-Nova in Nucleus-Nucleus Collisions

Fukushima,

Mohanty,

2020

Preprint

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We make a theoretical and experimental summary of the state-of-the-art status of hot and dense QCD matter studies on selected topics. We review the Beam Energy Scan program for the QCD phase diagram and present the current status of search for QCD Critical Point, particle production in high baryon density region, hypernuclei production, and global polarization effects in nucleusnucleus collisions. The available experimental data in the strangeness sector suggests that a grand canonical approach in thermal model at high collision energy makes a transition to the canonical ensemble behavior at low energy. We further discuss future prospects of nuclear collisions to probe properties of baryon-rich matter. Creation of a quark-gluon plasma at high temperature and low baryon density has been called the "Little-Bang" and, analogously, a femtometer-scale explosion of baryon-rich matter at lower collision energy could be called the "Femto-Nova", which may possibly sustain substantial vorticity and magnetic field for non-head-on collisions.

show abstract

Quark masses

Cited by 2 publications

References 20 publications

The Little-Bang and the femto-nova in nucleus-nucleus collisions

The Little-Bang and the femto-nova in nucleus-nucleus collisions

Little-Bang and Femto-Nova in Nucleus-Nucleus Collisions

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