Fri·Nov 6, 2020Friday·November 6, 2020

1. 01*

   Gravitational dark matter production: primordial black holes and UV freeze-in

   Nicolás Bernal🇨🇴 · Óscar Zapata🇨🇴

   Dark matter (DM) interacting only gravitationally with the standard model could have been produced in the early universe by Hawking evaporation of primordial black holes (PBH). This mechanism is viable in a large range of DM mass, spanning up to the Planck scale. However, DM is also unavoidably produced by the irreducible UV gravitational freeze-in. We show that the latter mechanism sets strong bounds, excluding large regions of the parameter space favored by PBH production.

   hep-phPLB(2021)·84 citations
2. 02*

   CP violating effects in ${}^{210}$Fr and prospects for new physics beyond the Standard Model

   Nanako Shitara🇯🇵 · Nodoka Yamanaka🇺🇸 · Bijaya Kumar Sahoo🇮🇳 · Toshio Watanabe🇯🇵 · Bhanu Pratap Das🇯🇵

   We report theoretical results of the electric dipole moment (EDM) of ${}^{210}$Fr which arises from the interaction of the EDM of an electron with the internal electric field in an atom and the scalar-pseudoscalar electron-nucleus interaction; the two dominant sources of CP violation in this atom. Employing the relativistic coupled-cluster theory, we evaluate the enhancement factors for these two CP violating interactions to an accuracy of about 3% and analyze the contributions of the many-body effects. These two quantities in combination with the projected sensitivity of the ${}^{210}$Fr EDM experiment provide constraints on new physics beyond the Standard Model. Particularly, we demonstrate that their precise values are necessary to account for the effect of the bottom quark in models in which the Higgs sector is augmented by nonstandard Yukawa interactions such as the two-Higgs doublet model.

   hep-phnucl-thphysics.atom-phJHEP(2021)·14 citations
3. 03*

   Weinberg operator contribution to the nucleon electric dipole moment in the quark model

   Nodoka Yamanaka🇺🇸 · Emiko Hiyama🇯🇵

   We evaluate the contribution of the CP violating gluon chromo-electric dipole moment (the so-called Weinberg operator, denoted as $w$) to the electric dipole moment (EDM) of nucleons in the nonrelativistic quark model. The CP-odd interquark potential is modeled by the perturbative one-loop level gluon exchange generated by the Weinberg operator with massive quarks and gluons. The nucleon EDM is obtained by solving the nonrelativistic Schrödinger equation of the three-quark system using the Gaussian expansion method. It is found that the resulting nucleon EDM, which may reasonably be considered as the irreducible contribution, is smaller than the one obtained after ${\gamma }_5$-rotating the anomalous magnetic moment using the CP-odd mass calculated with QCD sum rules. We estimate the total contribution to be $d_n=w\times 20e\mathrm{MeV}$ and $d_p=-w\times 18e\mathrm{MeV}$ with 60% of theoretical uncertainty.

   hep-phhep-exnucl-exnucl-thPRD(2021)·39 citations
4. 04*

   Majorana Neutrinos in Same-Sign $W^{\pm }{W}^{\pm }$ Scattering at the LHC: Breaking the TeV Barrier

   Benjamin Fuks🇫🇷 · Jonas Neundorf🇩🇪 · Krisztian Peters🇩🇪 · Richard Ruiz🇧🇪 · Matthias Saimpert🇨🇭

   We revisit the sensitivity to non-resonant, heavy Majorana neutrinos $N$ in same-sign $W^{\pm }{W}^{\pm }$ scattering at the $\sqrt{s}=13$ TeV LHC and its high-luminosity upgrade. As a benchmark scenario, we work in the context of the Phenomenological Type I Seesaw model, relying on a simulation up to next-to-leading order in QCD with parton shower matching. After extensively studying the phenomenology of the $pp\to {\mu }^{\pm }{\mu }^{\pm }jj$ process at the amplitude and differential levels, we design a simple collider analysis with remarkable signal-background separation power. At 95\% confidence level we find that the squared muon-heavy neutrino mixing element $|V_{\mu N}{|}^2$ can be probed down to about $0.06-0.3(0.03-0.1)$ for $m_N=1-10\mathrm{TeV}$ with $\mathcal{L}=300$ fb${}^{-1}(3$ ab${}^{-1})$. For heavier masses of $m_N=20\mathrm{TeV}$, we report sensitivity for $|V_{\mu N}{|}^2\gtrsim 0.5(0.3)$. The $W^{\pm }{W}^{\pm }$ scattering channel can greatly extend the mass range covered by current LHC searches for heavy Majorana neutrinos and particularly adds invaluable sensitivity above a few hundred GeV. We comment on areas where the analysis can be improved as well as on the applicability to other tests of neutrino mass models.

   hep-phhep-exPRD(2021)·61 citations
5. 05*

   XENON1T implications for the DAMA annual modulation: The good, the bad and the ugly

   R. Foot🇦🇺

   Previous work has argued that the DAMA annual modulation signal might be due to electron recoils in plasma dark matter models. A specific model assuming mirror dark matter and featuring collisional shielding of a detector due to Earth-bound dark matter was put forward by this author [arXiv:1806.04293]. That explanation predicted a low energy electron recoil signal in the XENON1T experiment. In light of the excess of electron recoils observed in XENON1T, we re-examine that model's predictions for both DAMA and XENON1T.

   hep-ph6 citations
6. 06*

   Quantum kinetic theory for spin-1/2 fermions in Wigner function formalism

   Jian-Hua Gao🇨🇳 · Zuo-Tang Liang🇨🇳 · Qun Wang🇨🇳

   We give a brief overview of the kinetic theory for spin-1/2 fermions in Wigner function formulism. The chiral and spin kinetic equations can be derived from equations for Wigner functions. A general Wigner function has 16 components which satisfy 32 coupled equations. For massless fermions, the number of independent equations can be significantly reduced due to the decoupling of left-handed and right-handed particles. It can be proved that out of many components of Wigner functions and their coupled equations, only one kinetic equation for the distribution function is independent. This is called the disentanglement theorem for Wigner functions of chiral fermions. For massive fermions, it turns out that one particle distribution function and three spin distribution functions are independent and satisfy four kinetic equations. Various chiral and spin effects such as chiral magnetic and votical effects, the chiral seperation effect, spin polarization effects can be consistently described in the formalism.

   hep-phhep-thnucl-thInt.J.Mod.Phys.A(2021)·34 citations
7. 07*

   Quark-sector Lorentz violation in $Z$-boson production

   Enrico Lunghi🇺🇸 · Nathan Sherrill🇺🇸 · Adam Szczepaniak🇺🇸 · Alexandre Vieira🇧🇷

   Quark-sector Lorentz violation is studied in the context of Drell-Yan dilepton production including effects from Z-boson exchange. We show the chiral nature of the weak interactions enables parity-violating and spin-dependent effects to be studied using unpolarized initial states. Constraints are placed on dimensionless and CPT-even coefficients for Lorentz violation for the first two generations of quarks using measurements from the Large Hadron Collider.

   hep-phJHEP(2021)·12 citations
8. 08*

   Exclusive J/Psi and Psi(2s) photo-production as a probe of QCD low x evolution equations

   Martin Hentschinski🇲🇽 · Emilio Padron Molina🇲🇽

   We investigate photo-production of vector mesons J/Psi and Psi(2s), based on both HERA and LHC data, using 2 fits of unintegrated gluon distributions. The latter are subject to non-linear Balitsky-Kovchegov evolution (Kutak-Sapeta gluon; KS) and linear next-to-leading order Balitsky-Kuraev-Fadin-Lipatov evolution (Hentschinski-Sabio Vera-Salas; HSS gluon) respectively. Apart from extending previous studies to the case of radially excited charmonium Psi(2s), we further use an improved set of charmonium wave functions and provide an estimate of the uncertainties associated with the HSS gluon. While we observe that the difference between linear and non-linear evolution somehow diminishes and a clear distinction between both HSS and KS gluon is no longer possible using the currently available data-set, we find that the differences between both gluon distributions are enhanced for the ratio of the photo-production cross-sections of Psi(2s) and J/Psi vector mesons.

   hep-phPRD(2021)·64 citations
9. 09*

   Cumulative effects of collision integral, strong magnetic field, and quasiparticle description on charge and heat transport in thermal QCD medium

   Salman Ahamad Khan🇮🇳 · Binoy Krishna Patra🇮🇳

   Our first aim is to explore the effect of the collision integral with the insurance of instantaneous conservation of particle number on charge and heat transport in a thermal QCD medium. The second aim is to see how the dimensional reduction due to strong magnetic field (B) modulates the transport through the entangled effects, {\em such as} collision-time and occupation probability etc. in collision integral. The final aim is to check how the quasiparticle description through dispersion relation of thermal QCD in strong B, alters the aforesaid conclusions. We observe that modified collision term expedites both transport, which is manifested by large magnitudes of electrical (${\sigma }_{\mathrm{el}}$) and thermal ($\kappa$) conductivities, in comparison to relaxation-collision term. As a corollary, Lorenz number is dominated by the later and Knudsen number is by the former. However, strong B not only flips the dominance of collision term in heat transport, it also causes drastic enhancement of both ${\sigma }_{\mathrm{el}}$ and $\kappa$ and reduction in specific heat. As a result, the equilibration factor, Knudsen number becomes much larger than one, which defies physical interpretation. Finally, quasiparticle description in the absence of strong B impedes the transport of charge and heat, resulting in the meagre decrease of conductivities, however, strong B does noticeable observations: conductivities now gets reduced to physically plausible values, T-dependence of ${\sigma }_{\mathrm{el}}$ gets reversed, {\em i.e.} it now decreases with T, effect of collision integral gets smeared in $\kappa$ etc. Knudsen number thus becomes much smaller than one, implying that the system be remained in equilibrium. These findings attribute to the fact that the collective modes in the dispersion relation of thermal QCD in strong B sets in much larger scale, manifested by large in-medium masses.

   hep-phcond-mat.softcond-mat.stat-mechcond-mat.str-el+1PRD(2021)·16 citations
10. 10*

    Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons

    K. Azizi🇮🇷 · A. R. Olamaei🇮🇷 · S. Rostami🇮🇷

    We calculate the strong coupling constants among the doubly heavy spin-$\frac{3}{2}$ baryons ${\Xi }_{QQ}^{\ast }$ and ${\Omega }_{QQ}^{\ast }$, with $Q$ and $Q^{\prime }$ being $c$ or $b$ quark, with light vector meson by means of the light-cone QCD sum rules. The matrix elements defining these vertices are described by four coupling constants $g_1$, $g_2$, $g_3$, and $g_4$. The unwanted pollution coming from the doubly heavy spin-$\frac{1}{2}$ baryons are removed by a special ordering of Dirac matrices and selection of appropriate Lorentz structures. The strong coupling constants are basic parameters that carry information on the nature of the strong interaction among hadronic multiplets. Investigation of these parameters may help physicists in the construction of the strong potentials among the doubly heavy baryons and light vector mesons. The values obtained for the strong coupling constants may also help experimental groups in analyses of the data produced at various hadron colliders.

    hep-phhep-exhep-latEPJC(2020)·13 citations
11. 11*

    Conservative constraints on the effective theory of dark matter-nucleon interactions from IceCube: the impact of operator interference

    Anja Brenner🇩🇪 · Alejandro Ibarra🇩🇪 · Andreas Rappelt🇩🇪

    We present a method to derive conservative upper limits on the coupling constants of the effective theory of dark matter-nucleon interactions, taking into account the interference among operators. The method can be applied in any basis, and can be easily particularized to any UV complete model. To illustrate our method, we use the IceCube constraints on an exotic neutrino flux from dark matter annihilations in the Sun to derive conservative upper limits on the dark matter-nucleon coupling constants of the effective theory, as well as to derive conservative upper limits on the dark matter-proton and dark matter-neutron scattering cross-sections.

    hep-phJCAP(2021)·10 citations
12. 12*

    Holographic models of composite Higgs in the Veneziano limit. Part I. Bosonic sector

    Daniel Elander🇫🇷 · Michele Frigerio🇫🇷 · Marc Knecht🇫🇷 · Jean-Loic Kneur🇫🇷

    We study strongly-coupled, approximately scale-invariant gauge theories, which develop a mass gap in the infrared. We argue that a large number of fermion flavours is most suitable to provide an ultraviolet completion for the composite Higgs scenario. The holographic approach allows to describe the qualitative features of the non-perturbative dynamics in the Veneziano limit. We introduce new bottom-up holographic models, which incorporate the backreaction of flavour on the geometry, and show that this can correlate the mass gap to the scale of flavour-symmetry breaking. We compute the mass spectrum for the various composite bosonic states, and study its dependence on the scaling dimension of the symmetry-breaking operators, as well as on the number of flavours. The different regions with a light dilaton are critically surveyed. We carefully assess the domain of validity of the holographic approach, and compare it with lattice simulations and the Nambu--Jona-Lasinio model.

    hep-phhep-lathep-thJHEP(2021)·37 citations
13. 13*

    Exclusive radiative production of fully-charmed tetraquarks at $B$ Factory

    Feng Feng🇨🇳 · Yingsheng Huang🇨🇳 · Yu Jia🇨🇳 · Wen-Long Sang🇨🇳 · Jia-Yue Zhang🇨🇳

    We apply the newly developed NRQCD factorization formula to analyze the exclusive production of the fully-charmed tetraquark $T_{4c}$ plus a hard photon at $B$ factory. For simplicity, in this work we have concentrated on the associated production of the $0^{++}$ and $2^{++}$ tetraquarks with a photon. With some rough estimates about the size of the unknown nonperturbative NRQCD matrix elements, we predict the production rates of these types of exclusive channels at $\sqrt{s}=10.6$ GeV and also assess their observation prospect at {\tt Belle 2} experiment.

    hep-phPLB(2021)·44 citations
14. 14*

    Unambiguously Testing Positivity at Lepton Colliders

    Jiayin Gu🇨🇳 · Lian-Tao Wang🇺🇸 · Cen Zhang🇨🇳

    The diphoton channel at lepton colliders, $e^{+}{e}^{-}({\mu }^{+}{\mu }^{-})\to \gamma \gamma$, has a remarkable feature that the leading new physics contribution comes only from dimension-eight operators. This contribution is subject to a set of positivity bounds, derived from the fundamental principles of Quantum Field Theory, such as unitarity, locality, analyticity and Lorentz invariance. These positivity bounds are thus applicable to the most direct observable -- the diphoton cross section. This unique feature provides a clear, robust, and unambiguous test of these principles. We estimate the capability of various future lepton colliders in probing the dimension-eight operators and testing the positivity bounds in this channel. We show that positivity bounds can lift certain flat directions among the effective operators and significantly change the perspectives of a global analysis. We also discuss the positivity bounds of the $Z\gamma /ZZ$ processes which are related to the $\gamma \gamma$ ones, but are more complicated due to the massive $Z$ boson.

    hep-phhep-exhep-thPRL(2022)·66 citations
15. 15*

    Charmonium-like resonances with $J^{PC}=0^{++},2^{++}$ in coupled $D\bar{D}$, $D_s{\bar{D}}_s$ scattering on the lattice

    S. Prelovsek🇸🇮 · S. Collins🇩🇪 · D. Mohler🇩🇪 · M. Padmanath🇩🇪 · S. Piemonte🇩🇪

    We present the first lattice investigation of coupled-channel $D\bar{D}$ and $D_s{\bar{D}}_s$ scattering in the $J^{PC}=0^{++}$ and $2^{++}$ channels. The scattering matrix for partial waves $l=0,2$ and isospin zero is determined using multiple volumes and inertial frames via Lüscher's formalism. Lattice QCD ensembles from the CLS consortium with $m_{\pi }\simeq 280$ MeV, $a\simeq 0.09$ fm and $L/a=24,32$ are utilized. The resulting scattering matrix suggests the existence of three charmonium-like states with $J^{PC}=0^{++}$ in the energy region ranging from slightly below $2m_D$ up to 4.13 GeV. We find a so far unobserved $D\bar{D}$ bound state just below threshold and a $D\bar{D}$ resonance likely related to ${\chi }_{c0}(3860)$, which is believed to be ${\chi }_{c0}(2P)$. In addition, there is an indication for a narrow $0^{++}$ resonance just below the $D_s{\bar{D}}_s$ threshold with a large coupling to $D_s{\bar{D}}_s$ and a very small coupling to $D\bar{D}$. This resonance is possibly related to the narrow $X(3915)$/${\chi }_{c0}(3930)$ observed in experiment also just below $D_s{\bar{D}}_s$. The partial wave $l=2$ features a resonance likely related to ${\chi }_{c2}(3930)$. We work with several assumptions, such as the omission of $J/\psi \omega$, ${\eta }_c\eta$ and three-particle channels. Only statistical uncertainties are quantified, while the extrapolations to the physical quark-masses and the continuum limit are challenges for the future.

    ↳ hep-lathep-phJHEP(2021)·116 citations
16. 16*

    Statistics on Lefschetz thimbles: Bell/Leggett-Garg inequalities and the classical-statistical approximation

    Peter Millington🇬🇧 · Zong-Gang Mou🇺🇸 · Paul M. Saffin🇬🇧 · Anders Tranberg🇳🇴

    Inspired by Lefschetz thimble theory, we treat Quantum Field Theory as a statistical theory with a complex Probability Distribution Function (PDF). Such complex-valued PDFs permit the violation of Bell-type inequalities, which cannot be violated by a real-valued, non-negative PDF. In this paper, we consider the Classical-Statistical approximation in the context of Bell-type inequalities, viz. the familiar (spatial) Bell inequalities and the temporal Leggett-Garg inequalities. We show that the Classical-Statistical approximation does not violate temporal Bell-type inequalities, even though it is in some sense exact for a free theory, whereas the full quantum theory does. We explain the origin of this discrepancy, and point out the key difference between the spatial and temporal Bell-type inequalities. We comment on the import of this work for applications of the Classical-Statistical approximation.

    ↳ hep-thhep-lathep-phquant-phJHEP(2021)·12 citations
17. 17*

    Machine learning forecasts of the cosmic distance duality relation with strongly lensed gravitational wave events

    Rubén Arjona🇪🇸 · Hai-Nan Lin🇨🇳 · Savvas Nesseris🇪🇸 · Li Tang🇨🇳

    We use simulated strongly lensed gravitational wave events from the Einstein Telescope to demonstrate how the luminosity and angular diameter distances, $d_L(z)$ and $d_A(z)$ respectively, can be combined to test in a model independent manner for deviations from the cosmic distance duality relation and the standard cosmological model. In particular, we use two machine learning approaches, the Genetic Algorithms and Gaussian Processes, to reconstruct the mock data and we show that both approaches are capable of correctly recovering the underlying fiducial model and can provide percent-level constraints at intermediate redshifts when applied to future Einstein Telescope data.

    ↳ astro-ph.COgr-qchep-phPRD(2021)·42 citations
18. 18*

    Entanglement Entropy Inequalities in BCFT by Holography

    Chia-Jui Chou🇹🇼 · Bo-Han Lin🇹🇼 · Bin Wang🇨🇳 · Yi Yang🇹🇼

    We study entanglement entropy inequalities in boundary conformal field theory (BCFT) by holographic correspondence. By carefully classifying all the configurations for different phases, we prove the strong subadditiviy and the monogamy of mutual information for holographic entanglement entropy in BCFT at both zero and finite temperatures

    ↳ hep-thhep-phJHEP(2021)·5 citations
19. 19*

    Comparing conserved charge fluctuations from lattice QCD to HRG model calculations

    Jishnu Goswami🇩🇪 · Frithjof Karsch🇩🇪 · Christian Schmidt🇩🇪 · Swagato Mukherjee🇺🇸 · Peter Petreczky🇺🇸

    We present results from lattice QCD calculations for $2^{nd}$ and $4^{th}$ order cumulants of conserved charge fluctuations and correlations, and compare these with various HRG model calculations. We show that differences between HRG and QCD calculations already show up in the second order cumulants close to the pseudo-critical temperature for the chiral transition in (2+1)-flavor QCD and quickly grow large at higher temperatures. We also show that QCD results for strangeness fluctuations are enhanced over HRG model calculations which are based only on particles listed in the Particle Data Group tables as 3-star resonances. This suggests the importance of contributions from additional strange hadron resonances. We furthermore argue that additional (repulsive) interactions, introduced either through excluded volume (mean field) HRG models or the S-matrix approach, do not improve the quantitative agreement with $2^{nd}$ and $4^{th}$ order cumulants calculated in lattice QCD. HRG based approaches fail to describe the thermodynamics of strongly interacting matter at or shortly above the pseudo-critical temperature of QCD.

    ↳ hep-lathep-phnucl-thActa Phys.Polon.Supp.(2021)·21 citations
20. 20*

    Applications of intersection numbers in physics

    Stefan Weinzierl🇩🇪

    In this review I discuss intersection numbers of twisted cocycles and their relation to physics. After defining what these intersection number are, I will first discuss a method for computing them. This is followed by three examples where intersection numbers appear in physics. These examples are: tree-level scattering amplitudes within the the CHY-formalism, reduction of Feynman integrals to master integrals and correlation functions on the lattice.

    ↳ hep-thhep-phPoS(2022)·17 citations
21. 21*

    HERA data on azimuthal decorrelation and charged particle multiplicity spectra probing QCD dynamics and quantum entanglement effects

    Zhoudunming Tu (for the H1 and ZEUS Collaborations)🇺🇸

    The azimuthal decorrelation angle between the leading jet and scattered lepton in deep inelastic scattering is studied with the ZEUS detector at HERA. The data was taken in the HERA II data-taking period and corresponds to an integrated luminosity of 330 $\mathrm{p}{\mathrm{b}}^{-1}$. Azimuthal angular decorrelation has been proposed to study the $Q^2$ dependence of the evolution of the transverse momentum distributions (TMDs) and understand the small-$x$ region, providing unique insight to nucleon structure. Previous decorrelation measurements of two jets have been performed in proton-proton collisions at very high transverse momentum; these measurements are well described by perturbative QCD at next-to-leading order. The azimuthal decorrelation angle obtained in these studies shows good agreement with predictions from Monte Carlo models including leading order matrix elements and parton showers. New experimental data on charged particle multiplicity distributions are presented, covering the kinematic ranges in momentum transfer $5<Q^2<100\mathrm{Ge}{\mathrm{V}}^2$ and inelasticity $0.0375<y<0.6$. The data was recorded with the H1 experiment at the HERA collider in positron-proton collisions at a centre-of-mass energy of 320 GeV. Charged particles are counted with transverse momenta larger than 150 MeV and pseudorapidity $-1.6<{\eta }_{\mathrm{lab}}<1.6$ in the laboratory frame, corresponding to high acceptance in the current hemisphere of the hadronic centre-of-mass frame. Charged particle multiplicities are reported on a two-dimensional grid of $Q^2$, $y$ and on a three-dimensional grid of $Q^2$, $y$ and $\eta$. The observable is the probability $P(N)$ to observe $N$ particles in the given $\eta$ region. The data are confronted with predictions from Monte Carlo generators, and with a simplistic model based on quantum entanglement and strict parton-hadron duality.

    ↳ hep-exhep-phnucl-exPoS(2021)·1 citation
22. 22*

    The Threshold for Primordial Black Hole Formation: a Simple Analytic Prescription

    Ilia Musco🇨🇭 · Valerio De Luca🇨🇭 · Gabriele Franciolini🇨🇭 · Antonio Riotto🇨🇭

    Primordial black holes could have been formed in the early universe from non linear cosmological perturbations re-entering the cosmological horizon when the Universe was still radiation dominated. Starting from the shape of the power spectrum on superhorizon scales, we provide a simple prescription, based on the results of numerical simulations, to compute the threshold ${\delta }_c$ for primordial black hole formation. Our procedure takes into account both the non linearities between the Gaussian curvature perturbation and the density contrast and, for the first time in the literature, the non linear effects arising at horizon crossing, which increase the value of the threshold by about a factor two with respect to the one computed on superhorizon scales.

    ↳ astro-ph.COgr-qchep-phPRD(2021)·264 citations
23. 23*

    Neutrino mass bounds from confronting an effective model with BOSS Lyman-alpha data

    Mathias Garny🇩🇪 · Thomas Konstandin🇩🇪 · Laura Sagunski🇩🇪 · Matteo Viel🇮🇹

    We present an effective model for the one-dimensional Lyman-$\alpha$ flux power spectrum far above the baryonic Jeans scale. The main new ingredient is constituted by a set of two parameters that encode the impact of small, highly non-linear scales on the one-dimensional power spectrum on large scales, where it is measured by BOSS. We show that, by marginalizing over the model parameters that capture the impact of the intergalactic medium, the flux power spectrum from both simulations and observations can be described with high precision. The model displays a degeneracy between the neutrino masses and the (unknown, in our formalism) normalization of the flux power spectrum. This degeneracy can be lifted by calibrating one of the model parameters with simulation data, and using input from Planck CMB data. We demonstrate that this approach can be used to extract bounds on the sum of neutrino masses with comparably low numerical effort, while allowing for a conservative treatment of uncertainties from the dynamics of the intergalactic medium. An explorative analysis yields an upper bound of $0.16$eV at $95\%$ C.L. when applied to BOSS data at $3\le z\le 4.2$. We also forecast that if the systematic and statistical errors will be reduced by a factor two the upper bound will become $0.1$eV at $95\%$ C.L., and $0.056$eV when assuming a $1\%$ error.

    ↳ astro-ph.COhep-phJCAP(2021)·27 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.