Tue·Aug 21, 2018Tuesday·August 21, 2018

1. 01*

   Search for lepton-number-violating signals in the charm sector

   Diego Milanes🇨🇴 · Nestor Quintero🇨🇴

   We explore signals of lepton-number-violation in the charm physics sector. We study the four-body $|\Delta L|=2$ decays of the $D^0$ meson, $D^0\to P^{-}{\pi }^{-}{\mu }^{+}{\mu }^{+}$ ($P=\pi ,K$) as an alternative evidence of the Majorana nature of neutrinos. We carry out an exploratory study on the potential sensitivity that LHCb experiment could achieve for these $|\Delta L|=2$ processes. We show that for a long term expected integrated luminosity of 300 fb${}^{-1}$, a signal significance of branching ratios of the order $\mathcal{O}(10^{-9})$ might be accessible, allowing to improve the experimental bounds obtained by the E791 experiment. Limits on the parameter space of a heavy sterile neutrino that could be obtained from their experimental search are discussed as well.

   hep-phhep-exPRD(2018)·23 citations
2. 02*

   Dream Machines

   Chris Quigg🇺🇸

   Particle accelerators and their detectors are the world's most powerful microscopes. They enable us to inspect the constituents of matter at attometer scales, study matter under unusual conditions, and concentrate extraordinary amounts of energy into tiny volumes to create new forms of matter and initiate new phenomena. The progress of particle physics and of accelerator science and technology go hand in hand. I look to the past, present, and future, raising questions that we would like to answer about nature along the way.

   hep-phRev.Accel.Sci.Tech.(2019)·6 citations
3. 03*

   CepGen -- A generic central exclusive processes event generator for hadron-hadron collisions

   Laurent Forthomme🇫🇮

   We present an event generator for the simulation of central exclusive processes in hadron-hadron reactions. Among others, it implements the two-photon production of lepton pairs previously introduced in LPAIR. As a proof of principle, we show that the two approaches are numerically consistent. The $k_{\mathrm{T}}$-factorized description of this process is also handled, along with the two-photon production of a quark, or a $W^{\pm }$ gauge boson pair. This toolbox may be used as a common framework for the definition of many other processes following this approach. Additionally, photoproduction and other photon induced processes are also considered, or being implemented.

   hep-phComput.Phys.Commun.(2022)·15 citations
4. 04*

   Minima of multi-Higgs potentials with triplets of $\Delta (3n^2)$ and $\Delta (6n^2)$

   Ivo de Medeiros Varzielas🇵🇹

   I present a list of minima for 3 Higgs doublet models and 6 Higgs doublet models that are invariant under the discrete symmetries $\Delta (3n^2)$ and $\Delta (6n^2)$. I use the invariant approach formalism on the scalar sector and, with relevant Spontaneous CP-odd invariants, determine if the minima lead to Spontaneous CP violation. I identify in which cases the VEVs have calculable phases, finding several new cases of Spontaneous Geometrical CP Violation, including the first cases for 6 Higgs doublet models.

   hep-ph0 citations
5. 05*

   A Dark Vector Resonance at CLIC

   Constanza Callender🇨🇱 · Alfonso R. Zerwekh🇨🇱

   One of the main problems in Particle Physics is to understand the origin and nature of Dark Matter. An exciting possibility is to consider that the Dark Matter belongs to a new complex but hidden sector. In this paper, we assume the existence of a strongly interacting dark sector consisting on a new scalar doublet and new vector resonances, in concordance with a model recently proposed by our group. Since in a previous work it was found that it is very challenging to find the new vector resonances at the LHC, here we study the possibility of finding them at the a future Compact Linear Collider (CLIC) running at $\sqrt{s}=3$ TeV. We consider two distinct scenarios: when the non-standard scalars are heavy, the dark resonance is intense enough to make its discovery possible at CLIC when the resonance mass is in the range $[2000,3000]$ GeV. In the second scenario, when the non-standard scalars are light, the new vector boson is too broad to be recognized as a resonance and is not detectable except when the mass of the scalars is close to (but smaller than) a half of the resonance mass and the scale of the dark sector is high. In all the positive cases, less than a tenth of the maximum integrated luminosity is needed to reach the discovery level. Finally, we also comment about the mono-$Z$ production.

   hep-phCPC(2019)·2 citations
6. 06*

   Associated non-prompt $J/\psi +\mu$ and $J/\psi +J/\psi$ production at LHC as a test for TMD gluon density

   S.P. Baranov🇷🇺 · A.V. Lipatov🇷🇺 · M.A. Malyshev🇷🇺

   We consider the associated production of $J/\psi$ mesons and muons originating from the $b$-flavored hadron decays and non-prompt double $J/\psi$ production at the LHC using the $k_T$-factorization approach. To describe the inclusive $b$-hadron decays into the different charmonium states we apply fragmentation approach and adopt fragmentation functions based on the non-relativistic QCD factorization. The transverse momentum dependent (TMD) gluon densities in a proton are determined using the Catani-Ciafaloni-Fiorani-Marchesini equation and Kimber-Martin-Ryskin prescription. We investigate the effects coming from parton showers, estimate the double parton scattering contribution and compare our predictions with the first experimental data taken by the ATLAS and LHCb Collaborations at $\sqrt{s}=8$~TeV. These data can serve as an additional test for TMD gluon density function in a proton.

   hep-phEPJC(2018)·6 citations
7. 07*

   A Search for R-Parity Violated Scalar Tau-neutrino ($\widetilde{{\nu }_{\tau }}$) at the Future Circular Collider

   Yusuf Oguzhan Günaydın (KSU)🇹🇷 · Sehban Kartal (Istanbul U.)🇹🇷 · Yunus Emre Gokyayli (Istanbul U.)🇹🇷 · Carmine Elvezio Pagliarone (INFN)🇮🇹 · Mehmet Sahin (Usak U.)🇹🇷 · Saleh Sultansoy (TOBB ETU)🇹🇷

   Future Circular Collider is one of the next generation energy-frontier proton-proton colliders with 100 TeV center of mass energy and promising very high luminosity. FCC will be an extraordinary machine for searching Beyond the Standard Model physics because of its very high center of mass energy and luminosity. Searching supersymmetric particles via R-parity violated interactions could be listed in promising BSM physics at the FCC. Scalar tau neutrino is one of the most interesting predictions. A search for ${\tilde{\nu }}_{\tau }$ neutrino decaying into $e\mu$ final state via R-parity violated interactions has been conducted at the FCC-pp. It is seen from this research that FCC-pp will be able to discover ${\tilde{\nu }}_{\tau }$ up to 28.8 TeV, observe 32.0 TeV and exclude 34.5 TeV mass values by taking ${\lambda }_{311}^{\prime }=0.11$ and ${\lambda }_{312}={\lambda }_{321}=0.07$ at ${\mathcal{L}}_{int}=17500f{b}^{-1}$. FCC-pp, also, will allow to examine very low values of the Yukawa coupling constants which cause R-parity violation interactions. It is obviously seen that FCC-pp will give an opportunity for detailed research on scalar tau neutrino production and decay via R-parity violated interactions.

   hep-phhep-ex0 citations
8. 08*

   Study of $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ decays in covariant quark model

   Stanislav Dubnička🇸🇰 · Anna Z. Dubničková🇸🇰 · Mikhail A. Ivanov🇷🇺 · Andrej Liptaj🇸🇰 · Pietro Santorelli🇮🇹 · Chien-Thang Tran🇮🇹

   We study the rare radiative leptonic decays $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ ($\ell =e,\mu ,\tau$) within the Standard Model, considering both the structure-dependent amplitude and bremsstrahlung. In the framework of the covariant confined quark model developed by us, we calculate the form factors characterizing the $B_s\to \gamma$ transition in the full kinematical region of the dilepton momentum squared and discuss their behavior. We provide the analytic formula for the differential decay distribution and give predictions for the branching fractions in both cases: with and without long-distance contributions. Finally, we compare our results with those obtained in other approaches.

   hep-phPRD(2019)·22 citations
9. 09*

   Singlet Dirac Fermion Dark Matter with Mediators at Loop

   Junji Hisano🇯🇵 · Ryo Nagai🇯🇵 · Natsumi Nagata🇯🇵

   We study the phenomenology of singlet Dirac fermion dark matter in the simplified models where the dark matter interacts with the Standard Model particles at loop-level with the help of either colored or non-colored mediators. We especially focus on the implications of non-zero CP phases in the dark sector, which induce the electric dipole moments of the Dirac fermion dark matter as well as those of electron and nucleon. It is then found that the dark matter direct detection searches and the measurements of the electric dipole moments are able to test the singlet Dirac fermion dark matter scenario in the forthcoming experiments.

   hep-phJHEP(2018)·30 citations
10. 10*

    Yukawa interactions, flavor symmetry, and non-canonical Kähler potential

    Yoshiharu Kawamura🇯🇵

    We study the origin of fermion mass hierarchy and flavor mixing in the standard model, paying attention to flavor symmetries and fermion kinetic terms. There is a possibility that the hierarchical flavor structure of quarks and charged leptons originates from non-canonical types of fermion kinetic terms in the presence of flavor symmetric Yukawa interactions. A flavor symmetry can be hidden in the form of non-unitary bases in the standard model. The structure of Kähler potential can become a touchstone of new physics.

    hep-phhep-thPTEP(2019)·10 citations
11. 11*

    Vector mesons and electromagnetic form factor of the $\Lambda$ hyperon

    Xu Cao🇨🇳 · Jian-Ping Dai🇨🇳 · Ya-Ping Xie🇨🇳

    The measured electromagnetic form factors of $\Lambda$ hyperon in the time-like region are significantly deviated from pQCD prediction. We attribute the non-vanishing cross section near threshold to be the contribution of below-threshold $\varphi$(2170) state, supporting its exotic structure. Above the threshold, we find significant role of a wide vector meson with the mass of around 2.34 GeV, which would be the same state present in $p\bar{p}$ annihilation reactions. As a result, we give a satisfactory description of the behavior of existing data without modifying pQCD expectation.

    hep-phnucl-thPRD(2018)·31 citations
12. 12*

    The $D\to \rho$ semileptonic and radiative decays within the light-cone sum rules

    Hai-Bing Fu🇨🇳 · Long Zeng🇨🇳 · Rong Lü🇨🇳 · Wei Cheng🇨🇳 · Xing-Gang Wu🇨🇳

    The measured branching ratio of the $D$ meson semileptonic decay $D\to \rho e^{+}{\nu }_e$, which is based on the $0.82\mathrm{f}{\mathrm{b}}^{-1}$ CLEO data taken at the peak of $\psi (3770)$ resonance, disagrees with the traditional SVZ sum rules analysis by about three times. In the paper, we show that this discrepancy can be eliminated by applying the QCD light-cone sum rules (LCSR) approach to calculate the $D\to \rho$ transition form factors $A_{1,2}(q^2)$ and $V(q^2)$. After extrapolating the LCSR predictions of these TFFs to whole $q^2$-region, we obtain $1/|V_{\mathrm{cd}}{|}^2\times \Gamma (D\to \rho e{\nu }_e)=(55.45_{-9.41}^{+13.34})\times 10^{-15}\mathrm{GeV}$. Using the CKM matrix element and the $D^0(D^{+})$ lifetime from the Particle Data Group, we obtain $\mathcal{B}(D^0\to {\rho }^{-}{e}^{+}{\nu }_e)=(1.749_{-0.297}^{+0.421}\pm 0.006)\times 10^{-3}$ and $\mathcal{B}(D^{+}\to {\rho }^0{e}^{+}{\nu }_e)=(2.217_{-0.376}^{+0.534}\pm 0.015)\times 10^{-3}$, which agree with the CLEO measurements within errors. We also calculate the branching ratios of the two $D$ meson radiative processes and obtain $\mathcal{B}(D^0\to {\rho }^0\gamma )=(1.744_{-0.704}^{+0.598})\times 10^{-5}$ and $\mathcal{B}(D^{+}\to {\rho }^{+}\gamma )=(5.034_{-0.958}^{+0.939})\times 10^{-5}$, which also agree with the Belle measurements within errors. Thus we think the LCSR approach is applicable for dealing with the $D$ meson decays.

    hep-phEPJC(2020)·29 citations
13. 13*

    Dark Matter Sommerfeld-enhanced annihilation and Bound-state decay at finite temperature

    Tobias Binder🇩🇪 · Laura Covi🇩🇪 · Kyohei Mukaida🇩🇪

    Traditional computations of the dark matter (DM) relic abundance, for models where attractive self-interactions are mediated by light force-carriers and bound states exist, rely on the solution of a coupled system of classical on-shell Boltzmann equations. This idealized description misses important thermal effects caused by the tight coupling among force-carriers and other charged relativistic species. We develop for the first time a comprehensive ab-initio derivation for the description of DM long-range interactions in the presence of a hot and dense plasma background directly from non-equilibrium quantum field theory. Most importantly, the scattering and bound states get strongly mixed in the thermal plasma environment, representing a characteristic difference from a pure vacuum theory computation. The main result of this work is a novel differential equation for the DM number density, written down in a form which is manifestly independent under the choice of what one would interpret as a bound or a scattering state at finite temperature. The collision term, unifying the description of annihilation and bound state decay, turns out to have in general a non-quadratic dependence on the DM number density. This generalizes the form of the conventional Lee-Weinberg equation which is typically adopted to describe the freeze-out process. We prove that our general number density equation is consistent with previous literature results under certain limits.

    hep-phastro-ph.COhep-thPRD(2018)·47 citations
14. 14*

    Search for an exotic-leptonic solution to observed anomalies in lepton universality observables in B decays and more

    Lobsang Dhargyal🇮🇳

    In this work we extend the SM by introducing only exotic scalars and leptons and show that within the reasonable error limits, both the observed anomalies in $R(D^{(\ast )})$ and $R_{K^{(\ast )}}$ can be explained along with satisfying all the constrains from nuetral meson oscillations, precision Z-pole data etc. In a trivial extension of our model with addition of three heavy right handed neutrinos, explaining the small masses of neutrinos and generation of Baryon excess via leptogenesis is possible as well. The disagreement between SM prediction and experimental data in muon (g-2) measurements can be reduced from 3.6$\sigma$ to around 2$\sigma$ in this model. Also our model has enough new particles for the scalar singlet DM to interact and generate enough annihilation to avoid over abundance problem (exotic portal), unlike the SM Higgs portal which has been ruled out.

    hep-ph2 citations
15. 15*

    Dark Energy from Eternal Pair-production of Fermions

    Jiro Hashiba

    We study a toy model in which Majorana or Dirac fermions behave as the source for a small vacuum energy in the present Universe. In the model, a self-interacting scalar boson coupled with fermions induces attractive and repulsive interactions between the fermions simultaneously. These interactions allow for the existence of a metastable state with positive energy density comprised of fermions degenerate inside a Fermi surface. The energy density of the metastable state remains constant as the Universe expands. This is because pair-productions of fermions from the vacuum continuously take place at no energy cost and keep supplying fermions uniformly to the Universe. The observed vacuum energy density $\sim 10^{-47}{\text{GeV}}^4$ is reproduced for the fermion and scalar mass of the order $10^{-3}\text{eV}$.

    hep-phgr-qchep-th8 citations
16. 16*

    Angles on CP-violation in Higgs boson interactions

    Florian U. Bernlochner🇩🇪 · Christoph Englert🇬🇧 · Chris Hays🇬🇧 · Kristin Lohwasser🇬🇧 · Hannes Mildner🇬🇧 · Andrew Pilkington🇬🇧 · Darren D. Price🇬🇧 · Michael Spannowsky🇬🇧

    CP-violation in the Higgs sector remains a possible source of the baryon asymmetry of the universe. Recent differential measurements of signed angular distributions in Higgs boson production provide a general experimental probe of the CP structure of Higgs boson interactions. We interpret these measurements using the Standard Model Effective Field Theory and show that they do not distinguish the various CP-violating operators that couple the Higgs and gauge fields. However, the constraints can be sharpened by measuring additional CP-sensitive observables and exploiting phase-space-dependent effects. Using these observables, we demonstrate that perturbatively meaningful constraints on CP-violating operators can be obtained at the LHC with luminosities of $\mathcal{O}$(100/fb). Our results provide a roadmap to a global Higgs boson coupling analysis that includes CP-violating effects.

    hep-phhep-exPLB(2019)·57 citations
17. 17*

    Collisional triggering of fast flavor conversions of supernova neutrinos

    Francesco Capozzi (MPP Munich)🇩🇪 · Basudeb Dasgupta (TIFR, Mumbai)🇮🇳 · Alessandro Mirizzi (Bari Univ., INFN Bari)🇮🇹 · Manibrata Sen (TIFR, Mumbai)🇮🇳 · Günter Sigl (Hamburg Univ.)🇩🇪

    Fast flavor conversions of supernova neutrinos, possible near the neutrinosphere, depends on an interesting interplay of collisions and neutrino oscillations. Contrary to naive expectations, the rate of self-induced neutrino oscillations, due to neutrino-neutrino forward scattering, comfortably exceeds the rate of collisions even deep inside the supernova core. Consistently accounting for collisions and oscillations, we present the first calculations to show that collisions can create the conditions for fast flavor conversions of neutrinos, but oscillations can continue without significant damping thereafter. This may have interesting consequences for supernova explosions and the nature of its associated neutrino emission.

    hep-phastro-ph.HEPRL(2019)·110 citations
18. 18*

    Magnetogenesis by non-minimal coupling to gravity in the Starobinsky inflationary model

    Oleg Savchenko🇺🇦 · Yuri Shtanov🇺🇦

    The $R^2$ term in the Starobinsky inflationary model can be regarded as a leading quantum correction to the gravitational effective action. We assume that parity-preserving and parity-violating (axial) non-minimal couplings between curvature and electromagnetic field are also present in the effective action. In the Einstein frame, they turn into non-trivial couplings of the scalaron and curvature to the electromagnetic field. We make an assessment of inflationary magnetogenesis in this model. In the case of parity-preserving couplings, amplification of magnetic field is negligibly small. In the case of axial couplings, magnetogenesis is hampered by strong back-reaction on the inflationary process, resulting in possible amplification of magnetic field at most by the factor $10^5$ relative to its vacuum fluctuations.

    ↳ astro-ph.COgr-qchep-phJCAP(2018)·24 citations
19. 19*

    Condensate Dynamics with Non-Local Interactions

    Erik W Lentz🇩🇪 · Thomas R Quinn🇺🇸 · Leslie J Rosenberg🇺🇸

    Systems of identical particles possessing non-local interactions are capable of exhibiting extra-classical properties beyond the characteristic quantum length scales. This letter derives the dynamics of such systems in the non-relativistic and degenerate limit, showing the effect of exchange symmetry and correlations on structure both in and out of equilibrium. Such descriptions may be crucial to understanding systems ranging from nuclei to dark matter. Appropriate limits for restoring the mean-field description are also discussed.

    ↳ astro-ph.COcond-mat.str-elhep-phquant-phNPB(2020)·13 citations
20. 20*

    Bulk Viscosity of Hot Quark Plasma from Non-Equilibrium Statistical Operator

    Arus Harutyunyan🇩🇪 · Armen Sedrakian🇩🇪

    We provide a discussion of the bulk viscosity of two-flavor quark plasma, described by the Nambu--Jona-Lasinio model, within the framework of Kubo-Zubarev formalism. This discussion, which is complementary to our earlier study, contains a new, detailed derivation of the bulk viscosity in the case of multiple conserved charges. We also provide some numerical details of the computation of the bulk viscosity close to the Mott transition line, where the dissipation is dominated by decays of mesons into quarks and their inverse processes. We close with a summary of our current understanding of this quantity, which stresses the importance of loop resummation for obtaining the qualitatively correct result near the Mott line.

    ↳ nucl-thhep-phhep-thParticles(2018)·5 citations
21. 21*

    Resummed hydrodynamic expansion for a plasma of particles interacting with fields

    L. Tinti🇺🇸 · G. Vujanovic🇺🇸 · J. Noronha🇧🇷 · U. Heinz🇺🇸

    A novel description of kinetic theory dynamics is proposed in terms of resummed moments that embed information of both hydrodynamic and non-hydrodynamic modes. The resulting expansion can be used to extend hydrodynamics to higher orders in a consistent and numerically efficient way; at lowest order it reduces to an Israel-Stewart-like theory. This formalism is especially suited to investigate the general problem of particles interacting with fields. We tested the accuracy of this approach against the exact solution of the coupled Boltzmann-Vlasov-Maxwell equations for a plasma in an electromagnetic field undergoing Bjorken-like expansion, including extreme cases characterized by large deviations from local equilibrium and large electric fields. We show that this new resummed method maintains the fast convergence of the traditional method of moments. We also find a new condition, unrelated to Knudsen numbers and pressure corrections, that justifies the truncation of the series even in situations far from local thermal equilibrium.

    ↳ nucl-thhep-phhep-thPRD(2019)·27 citations
22. 22*

    Lattice study of static quark-antiquark interactions in dense quark matter

    N. Yu. Astrakhantsev🇷🇺 · V. G. Bornyakov🇷🇺 · V. V. Braguta🇷🇺 · E.-M. Ilgenfritz🇷🇺 · A. Yu. Kotov🇷🇺 · A. A. Nikolaev🇷🇺 · A. Rothkopf🇳🇴

    In this paper we study the interactions among a static quark-antiquark pair in the presence of dense two-color quark matter with lattice simulation. To this end we compute Polyakov line correlation functions and determine the renormalized color averaged, color singlet and color triplet grand potentials. The color singlet grand potential allows us to elucidate the number of quarks induced by a static quark antiquark source, as well as the internal energy of such a pair in dense quark matter. We furthermore determine the screening length, which in the confinement phase is synonymous with the string breaking distance. The screening length is a decreasing function of baryon density, due to the possibility to break the interquark string via a scalar diquark condensate at high density. We also study the large distance properties of the color singlet grand potential in a dense medium and find that it is well described by a simple Debye screening formula, parameterized by a Debye mass and an effective coupling constant. The latter is of order of unity, i.e. even at large density two-color quark matter is a strongly correlated system.

    ↳ hep-lathep-phhep-thJHEP(2019)·36 citations
23. 23*

    Charting the flavor landscape of MSSM-like Abelian heterotic orbifolds

    Yessenia Olguin-Trejo🇲🇽 · Ricardo Perez-Martinez🇲🇽 · Saul Ramos-Sanchez🇲🇽

    Discovering a selection principle and the origin of flavor symmetries from an ultraviolet completion of particle physics is an interesting open task. As a step in this direction, we classify all possible flavor symmetries of 4D massless spectra emerging from supersymmetric Abelian orbifold compactifications, including roto-translations and non-factorizable compact spaces, for generic moduli values. Although these symmetries are valid in all string theories, we focus on the E8 x E8 heterotic string. We perform the widest known search of E8 x E8 Abelian orbifold compactifications, yielding over 121,000 models with MSSM-like features. About 75.4% of these models exhibit flavor symmetries containing D4 factors and only nearly 1.2% have Delta(54) factors. The remaining models are furnished with purely Abelian flavor symmetries. Our findings suggest that, should particle phenomenology arise from a heterotic orbifold, it could accommodate only one of these flavor symmetries.

    ↳ hep-thhep-phPRD(2018)·39 citations
24. 24*

    Beyond $\Lambda$CDM with Low and High Redshift Data: Implications for Dark Energy

    Koushik Dutta🇮🇳 · Ruchika🇮🇳 · Anirban Roy🇮🇹 · Anjan A. Sen🇮🇳 · M.M. Sheikh-Jabbari🇮🇷

    Assuming that the Universe at higher redshifts (z \sim 4 and beyond) is consistent with LCDM model as constrained by the Planck measurements, we reanalyze the low redshift cosmological data to reconstruct the Hubble parameter as a function of redshift. This enables us to address the H_0 and other tensions between low z observations and high z Planck measurement from CMB. From the reconstructed H(z), we compute the energy density for the "dark energy" sector of the Universe as a function of redshift without assuming a specific model for dark energy. We find that the dark energy density has a minimum for certain redshift range and that the value of dark energy at this minimum is negative. This behavior can most simply be described by a negative cosmological constant plus an evolving dark energy component. We discuss possible theoretical and observational implications of such a scenario.

    ↳ astro-ph.COhep-phhep-thGen.Rel.Grav.(2020)·161 citations
25. 25*

    Testing Weyl Gravity at Galactic and Extra-galactic Scales

    Koushik Dutta🇮🇳 · Tousif Islam🇮🇳

    We examine the viability of Weyl conformal gravity as an alternative to the general theory of relativity. By using the extended rotation curve of the Milky Way and velocity dispersions of four globular clusters, we show that Weyl gravity predictions without resorting to dark matter comply with observations at the galactic scale. For the Milky Way, we demonstrate that the uncertainty in baryonic modelling results a bracket of possible rotational velocities which well encompasses the diversity in rotation curve construction. Such diversity generally arises from differences in measurements of velocity anisotropy parameter, and the circular speed and Galactocentric distance of the Sun. Furthermore, we explore the ability of Weyl gravity to account for the inferred acceleration of Abell cluster 1689.

    ↳ gr-qcastro-ph.COastro-ph.GAhep-phPRD(2018)·14 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.