Search Results - "Roberts, Craig D."
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1
Empirical Consequences of Emergent Mass
Published in Symmetry (Basel) (01-09-2020)“…The Lagrangian that defines quantum chromodynamics (QCD), the strong interaction piece of the Standard Model, appears very simple. Nevertheless, it is…”
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2
On mass and matter
Published in AAPPS bulletin (01-12-2021)“…The visible Universe is largely characterised by a single mass scale, namely, the proton mass, m p . Contemporary theory suggests that m p emerges as a…”
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3
Masses of positive- and negative-parity hadron ground-states, including those with heavy quarks
Published in The European physical journal. C, Particles and fields (01-04-2021)“…A symmetry-preserving treatment of a vector × vector contact interaction is used to compute spectra of ground-state J P = 0 ± , 1 ± ( f g ¯ ) mesons, their…”
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4
Revealing the Origin of Mass through Studies of Hadron Spectra and Structure
Published in EPJ Web of conferences (2024)“…The Higgs boson is responsible for roughly 1% of the visible mass in the Universe. Obviously, therefore, Nature has another, very effective way of generating…”
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Contact interaction study of proton parton distributions
Published in The European physical journal. C, Particles and fields (26-07-2024)“…Using a symmetry-preserving formulation of a vector × vector contact interaction (SCI) and treating the proton as a quark + interacting-diquark bound state,…”
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6
Contact interaction analysis of pion GTMDs
Published in The European physical journal. C, Particles and fields (2021)“…A contact interaction is used to calculate an array of pion twist-two, -three and -four generalised transverse light-front momentum dependent parton…”
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7
Fresh Extraction of the Proton Charge Radius from Electron Scattering
Published in Physical review letters (27-08-2021)“…We present a novel method for extracting the proton radius from elastic electron-proton (ep) scattering data. The approach is based on interpolation via…”
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Emergence of Hadron Mass and Structure
Published in Particles (01-01-2023)“…Visible matter is characterised by a single mass scale; namely, the proton mass. The proton’s existence and structure are supposed to be described by quantum…”
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Phase diagram and critical end point for strongly interacting quarks
Published in Physical review letters (28-04-2011)“…We introduce a method based on chiral susceptibility, which enables one to draw a phase diagram in the chemical-potential-temperature plane for strongly…”
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Heavy + light pseudoscalar meson semileptonic transitions
Published in The European physical journal. C, Particles and fields (01-12-2021)“…A symmetry-preserving regularisation of a vector × vector contact interaction (SCI) is used to deliver a unified treatment of semileptonic transitions…”
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11
Heavy + heavy and heavy + light pseudoscalar to vector semileptonic transitions
Published in The European physical journal. C, Particles and fields (01-10-2022)“…Using a symmetry-preserving regularisation of a vector × vector contact interaction (SCI), we complete a systematic treatment of twelve semileptonic…”
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12
Resonance Electroproduction and the Origin of Mass
Published in EPJ Web of Conferences (01-01-2020)“…One of the greatest challenges within the Standard Model is to discover the source of visible mass. Indeed, this is the focus of a “Millennium Problem”, posed…”
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13
Nucleon Resonance Electroexcitation Amplitudes and Emergent Hadron Mass
Published in Particles (01-03-2023)“…Understanding the strong interaction dynamics that govern the emergence of hadron mass (EHM) represents a challenging open problem in the Standard Model. In…”
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14
Perspective on the Origin of Hadron Masses
Published in Few-body systems (01-01-2017)“…The energy–momentum tensor in chiral QCD, T μ ν , exhibits an anomaly, viz. Θ 0 : = T μ μ ≠ 0 . Measured in the proton, this anomaly yields m p 2 , where m p…”
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15
Emergent phenomena and partonic structure in hadrons
Published in EPJ Web of Conferences (01-01-2017)“…Modern facilities are poised to tackle fundamental questions within the Standard Model, aiming to reveal the nature of confinement, its relationship to…”
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16
Explanation and prediction of observables using continuum strong QCD
Published in Progress in particle and nuclear physics (01-07-2014)“…The last five years have brought considerable progress in the study of the bound-state problem in continuum quantum field theory. We highlight a subset of that…”
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Colloquium: Roper resonance: Toward a solution to the fifty year puzzle
Published in Reviews of modern physics (14-03-2019)“…Discovered in 1963, the Roper resonance appears to be an exact copy of the proton except that its mass is 50% greater and it is unstable. These features of the…”
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18
Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
Published in Physics letters. B (06-03-2015)“…Within contemporary hadron physics there are two common methods for determining the momentum-dependence of the interaction between quarks: the top-down…”
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Intravascular food reward
Published in PloS one (27-09-2011)“…Consumption of calorie-containing sugars elicits appetitive behavioral responses and dopamine release in the ventral striatum, even in the absence of…”
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Hadron Structure Using Continuum Schwinger Function Methods
Published in Few-body systems (22-06-2023)“…The vast bulk of visible mass emerges from nonperturbative dynamics within quantum chromodynamics—the strong interaction sector of the Standard Model. The past…”
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