Modification of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>meson mass in a magnetic field from QCD sum rules

Machado, Camila S.; Matheus, R.; Finazzo, Stefano Ivo; Noronha, Jorge

doi:10.1103/physrevd.89.074027

Cited by 76 publications

(88 citation statements)

References 61 publications

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“…(33). This has been carried out systematically in various channels in the RRY papers [41,42], and explicit forms in their conventions are given by…”

Section: A Ope For Charmonia In the Ordinary Vacuummentioning

confidence: 99%

“…Since the magnitude of external fields up to the LHC energy satisfies the condition |eB| ≪ 4m 2 + Q 2 discussed in Sec. III, the OPE in an external magnetic field is thus implemented as a sum of the conventional terms in the ordinary vacuum (33) and those from the external magnetic field shown in Fig. 4 as…”

Section: B Ope In External Magnetic Fieldsmentioning

confidence: 99%

“…We will show how to distinguish nonperturbative mass modifications from a level repulsion from the mixing effect that can be described on the hadronic basis. We note that our treatment of the mixing effects can be applied to general analyses on meson spectra in terms of correlation functions, and should be applied to a very recent QCDSR analysis on B mesons in strong magnetic fields [33] since the B mesons are mixed with B * mesons. Our work demonstrates how to implement mixing effects in the QCDSR method, in particular for the heavy quark systems where both the OPE and the phenomenological side are well under control, and thus provides a general guideline to include mixing effects in approaches based on correlation functions.…”

Section: Introductionmentioning

confidence: 99%

“…Motivated by formation of strong electromagnetic fields in neutron stars/magnetars [3,4] and ultrarelativistic heavy-ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) [5][6][7][8], a number of lattice QCD simulations and analytic calculations have shown that strong magnetic fields modify properties of QCD vacuum such as quark condensates [5,[9][10][11][12][13][14][15][16][17][18] and gluon condensates [19,20], and consequently modify even phase structures [15,19,[21][22][23] and hadron properties [5,9,[24][25][26][27][28][29][30][31][32][33][34][35]. One of the remarkable findings is a discrepancy between meson spectra obtained from a hadronic effective model calculation and a lattice QCD simulation in strong magnetic fields [26,27].…”

Section: Introductionmentioning

confidence: 99%

“…This structure in QCD sum rules indicates that we could investigate how changes in properties of QCD vacuum in the OPE manifest themselves in hadron properties in external environments. Indeed, the QCD sum rules at finite temperature/density [46][47][48] have been applied to heavy quarkonia [49][50][51][52][53][54][55][56][57][58][59], light mesons [60,61], and heavy-light mesons [62] in the last two decades, and very recently those in strong external magnetic fields [33,34].…”

Section: Introductionmentioning

confidence: 99%

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Charmonium spectroscopy in strong magnetic fields by QCD sum rules:S-wave ground states

et al. 2015

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We investigate quarkonium mass spectra in external constant magnetic fields by using QCD sum rules. We first discuss a general framework of QCD sum rules necessary for properly extracting meson spectra from current correlators computed in the presence of strong magnetic fields, that is, a consistent treatment of mixing effects caused in the mesonic degrees of freedom. We then implement operator product expansions for pseudoscalar and vector heavy-quark current correlators by taking into account external constant magnetic fields as operators, and obtain mass shifts of the lowestlying bound states ηc and J/ψ in the static limit with their vanishing spatial momenta. Comparing results from QCD sum rules with those from hadronic effective theories, we find that the dominant origin of mass shifts comes from a mixing between ηc and J/ψ with a longitudinal spin polarization, accompanied by other subdominant effects such as mixing with higher excited states and continua.

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“…(33). This has been carried out systematically in various channels in the RRY papers [41,42], and explicit forms in their conventions are given by…”

Section: A Ope For Charmonia In the Ordinary Vacuummentioning

confidence: 99%

Section: B Ope In External Magnetic Fieldsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Charmonium spectroscopy in strong magnetic fields by QCD sum rules:S-wave ground states

et al. 2015

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HQ collisional energy loss in a magnetized medium

Singh

Mazumder

Mishra

2020

J. High Energ. Phys.

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We study the effect of the magnetic field on the collisional energy loss of heavy quark (HQ) moving in a magnetized thermal partonic medium. This is investigated in the strong field approximation where the lowest Landau level (LLL) becomes relevant. We work in the limit g √ eB T √ eB which is relevant for heavy ion collisions. Effects of the magnetic field are incorporated through the resummed gluon propagator in which the dominant contribution arises from the quark loop. We also take the approximation √ eB M , M being the HQ mass, so that the HQ is not Landau quantized. It turns out that there are only two types of scatterings that contribute to the energy loss of HQ; the Coulomb scattering of HQ with light quarks/anti-quarks and the t-channel Compton scattering. It is observed that for a given magnetic field, the dominant contribution to the collisional energy loss arises from Compton scattering process i.e., Qg → Qg. On the other hand, of the two processes, the Coulomb scattering i.e., Qq → Qq is more sensitive to the magnetic field. The net collisional energy loss is seen to increase with increase in the magnetic field. For a reasonable strength of the magnetic field, the field dependent contribution to the collisional energy loss is of the same order as to the case without magnetic field which can be important for the jet quenching phenomena in the heavy ion collision experiments.

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Novel quantum phenomena induced by strong magnetic fields in heavy-ion collisions

2017

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The relativistic heavy-ion collisions create both hot quark-gluon matter and strong magnetic fields, and provide an arena to study the interplay between quantum chromodynamics (QCD) and quantum electrodynamics (QED). In recent years, it has been shown that such an interplay can generate a number of interesting quantum phenomena in hadronic and quark-gluon matter. In this short review, we first discuss some properties of the magnetic fields in heavy-ion collisions and then give an overview of the magnetic-field induced novel quantum effects. In particular, we focus on the magnetic effect on the heavy-flavor mesons, and the heavy quark transports, and also the phenomena closely related to chiral anomaly.

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Modification of theBmeson mass in a magnetic field from QCD sum rules

Cited by 76 publications

References 61 publications

Charmonium spectroscopy in strong magnetic fields by QCD sum rules:S-wave ground states

Charmonium spectroscopy in strong magnetic fields by QCD sum rules:S-wave ground states

HQ collisional energy loss in a magnetized medium

Novel quantum phenomena induced by strong magnetic fields in heavy-ion collisions

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