Charge radii of proton and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>M</mml:mi><mml:mi /><mml:mn>1</mml:mn></mml:math>radiative transitions of hadrons in a bag model with variable bag pressure

Chatley, P. K.; Singh, C. P.; Khanna, M. P.

doi:10.1103/physrevd.29.96

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…In hydrogen spectroscopy, two methods are adopted: one by using atomic hydrogen [11] and a second by using muonic hydrogen [12]; both of these methods give contradictory results, giving rise to the so-called "proton radius puzzle". There are many theoretical approaches to find out the rms radius of proton, including MIT Bag model [13], self-consistent model [14], by using Lattice QCD [15][16][17], etc.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Rms Charge Radius of Proton Using Proton–Proton Elastic Scattering Data at TeV

Zahra

Shafaq

2021

Rev. Mex. Fís.

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Using proton–proton elastic scattering data at TeV and squared four-momentum transfer 0.36 < -t < 0.76 (GeV/c)2 for 13 σBeam distance and 0.07 < -t < 0.46 (GeV/c)2 for 4.3 σBeam distance, form factor of proton is predicted. Simplest version of Chou–Yang model is employed to extract the form factor by fitting experimental data of differential cross section from TOTEM experiment (for 13σBeamand 4.3 σBeam distance) to a single Gaussian. Root mean square (rms) charge radius of proton is calculated using this form factor. It is found to be equal to 0.91 fm and 0.90 fm respectively. Which is in good agreement with experimental data and theoretically predicted values.

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Section: Introductionmentioning

confidence: 99%

Prediction of Rms Charge Radius of Proton Using Proton–Proton Elastic Scattering Data at TeV

Zahra

Shafaq

2021

Rev. Mex. Fís.

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“…By now experimental results 1 are available with a broad range of accuracies for almost all kinematically allowed transitions of the type V (J p = 1 − ) → P (J p = 0 − ) + γ and P (J p = 0) → V (J p = 1 − ) + γ, which proceed through magnetic dipole (M1) transitions. A considerable number of theoretical papers based on the constituent quark model study [2][3][4][5][6] within the framework of the naive quark model, the phenomenological Lagrangian approach 7-11 within SU(3) unitary symmetry scheme, and more recently the bag model approach [12][13][14] as well as the potential model approach 15 taking into account the basic features of QCD have appeared in the literature providing a large amount of understanding in this area. Still none of the theoretical or phenomenological descriptions of one-photon radiative transitions among the low-lying vector and pseudoscalar mesons can successfully account for all the experimentally observed decay widths.…”

Section: Introductionmentioning

confidence: 99%

M1 Transitions of Mesons in a Potential Model of Independent Quarks

Jena

Muni

Pattnaik³

et al. 2010

Int. J. Mod. Phys. A

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The decay widths for M1 transitions of mesons are calculated in a relativistic potential model of independent quarks with its parameters determined from a fit to the mass splittings of the ground state mesons in the strange, charm and bottom flavor sector. A more realistic calculation of the decay widths is performed beyond static approximation incorporating some momentum dependence due to recoil of the daughter meson. The model accounts well for the observed decay widths of light mesons and predicts decay rates of heavy mesons which are comparable with those of other model calculations.

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“…During the seventies and eighties, a lot of works has been done on radiative transitions for mesons (and also for baryons but we are not so interested in this sector here). At the very beginning they were studied in the vector dominance model [4,5], then the quark model was introduced either in the framework of MIT bag model [6,7,8], the non relativistic quark model [9,10,11], 2 body Dirac equation [12,13,14] or some relativized phenemenological quark models [15,16]. But even in the most complete and nice works, as [15] or [11], there is always an approximation or an inconsistency which plagues the results or forbids to draw precise conclusions.…”

Section: Introductionmentioning

confidence: 99%

Radiative transitions in mesons in a non-relativistic quark model

Bonnaz¹,

Silvestre‐Brac²,

Gignoux³

2002

Eur Phys J A

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In the framework of the non relativistic quark model, an exhaustive study of radiative transitions in mesons is performed. The emphasis is put on several points. Some traditional approximations (long wave length limit, non relativistic phase space, dipole approximation for E1 transitions, gaussian wave functions) are analyzed in detail and their effects commented. A complete treatment using three different types of realistic quark-antiquark potential is made. The overall agreement with experimental data is quite good, but some improvements are suggested.

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Charge radii of proton andM1radiative transitions of hadrons in a bag model with variable bag pressure

Cited by 9 publications

References 13 publications

Prediction of Rms Charge Radius of Proton Using Proton–Proton Elastic Scattering Data at TeV

Prediction of Rms Charge Radius of Proton Using Proton–Proton Elastic Scattering Data at TeV

M1 Transitions of Mesons in a Potential Model of Independent Quarks

Radiative transitions in mesons in a non-relativistic quark model

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