Fri·Mar 10, 2023Friday·March 10, 2023

1. 01*

   Retrieving texture zeros in 3+1 active-sterile neutrino framework under the action of $A_4$ modular-invariants

   Maibam Ricky Devi🇮🇳

   The flavour problem and the viability of texture zeros of the Majorana mass matrix in the 3+1 active-sterile neutrino mixing scenario are investigated in this work using a novel bottom-up technique where we leverage the pertinent concepts of full modular group, modular invariants, and $A_4$ flavour symmetry as theoretical tools for the explicit construction of neutrino models. In this approach we treat each chiral field as modular forms in the 3+1 neutrino mixing which are constrained by the $A_4$ modular symmetry. Using these techniques, we create straightforward predictive models that only depends on a few parameters and simultaneously explains the observed pattern of neutrino mixing without the need for fine-tuning, allowing us to perceive the feasible zero textures of the Majorana mass matrix under the 3+1 framework.We discuss the implications of the allowed 3+1 zero textures by analyzing the sterile neutrino parameters, providing insight into the flavor problem and the viability of the Majorana mass matrix. The values of the active-sterile mixing (ASM) parameters predicted from our models are highly consistent with the $3\sigma$ values of the ASM parameters.

   hep-ph23 citations
2. 02*

   The resolution to the problem of consistent large transverse momentum in TMDs

   J. O. Gonzalez-Hernandez🇮🇹 · T. Rainaldi🇺🇸 · T. C. Rogers🇺🇸

   Parametrizing TMD parton densities and fragmentation functions in ways that consistently match their large transverse momentum behavior in standard collinear factorization has remained notoriously difficult. We show how the problem is solved in a recently introduced set of steps for combining perturbative and nonperturbative transverse momentum in TMD factorization. Called a ``bottom-up'' approach in a previous article, here we call it a ``hadron structure oriented'' (HSO) approach to emphasize its focus on preserving a connection to the TMD parton model interpretation. We show that the associated consistency constraints improve considerably the agreement between parametrizations of TMD functions and their large-$k_T$ behavior, as calculated in collinear factorization. The procedure discussed herein will be important for guiding future extractions of TMD parton densities and fragmentation functions and for testing TMD factorization and universality. We illustrate the procedure with an application to semi-inclusive deep inelastic scattering (SIDIS) structure functions at an input scale $Q_0$, and we show that there is improved consistency between different methods of calculating at moderate transverse momentum. We end with a discussion of plans for future phenomenological applications.

   hep-phhep-exnucl-exnucl-thPRD(2023)·19 citations
3. 03*

   Constraining fragmentation functions through hadron-photon production at higher-orders

   Salvador A. Ochoa-Oregon🇲🇽 · David F. Rentería-Estrada🇲🇽 · Roger J. Hernández-Pinto🇲🇽 · German F. R. Sborlini🇪🇸

   In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbative functions extracted from experimental data through advanced fitting techniques. Constraining the parameters of such fits is crucial to reduce the uncertainties, and provide reliable and accurate FFs. In this article, we explore strategies to relate pion and FFs for other hadrons (in particular, kaons), comparing cross-section ratios imposing proper kinematical cuts. We exploit the phenomenology of photon-hadron production at colliders, including up to NLO QCD and LO QED corrections, and make use of accurate formulae to reconstruct the partonic momentum fractions. By studying different cuts, we manage to isolate the contribution of $u$-started FFs. Then, we relate the ratios of the $z$-spectrum for pion and kaon production, with the corresponding FFs ratios. The methodology described in this article can be used to relate FFs for any pair of hadrons, and could be further explored to keep track of the flavour of the partons undergoing the hadronization.

   hep-phPRD(2023)·4 citations
4. 04*

   Uniform Rate Inflation

   Chia-Min Lin🇨🇳

   In this work, I consider an inflation model with a quadratic potential and a negative cosmological constant. An analytical solution of the equation of motion for the inflaton field is found without slow-roll approximation. The result is that the inflation field is rolling at a constant speed. The prediction for cosmological perturbation is calculated.

   hep-phastro-ph.COhep-thJCAP(2023)·6 citations
5. 05*

   Prospects of Gluino searches in multi-lepton channels in the light of ongoing LHC RUN-III

   Abhi Mukherjee🇮🇳 · Saurabh Niyogi🇮🇳 · Sujoy Poddar🇮🇳 · Jyoti Prasad Saha🇮🇳

   This study investigates the prospect of discovering strongly interacting gluinos in different multi-lepton channels with lepton multiplicity greater than or equal to 2 at LHC RUN-III, considering several pMSSM scenarios. The effectiveness of the Multivariate Analysis (MVA) method with the Boosted Decision Tree (BDT) algorithm is explored in order to obtain a better significance for different models. Promising results are obtained for the 3-lepton channels, indicating that the use of MVA methods can improve the sensitivity of the search for gluinos at LHC RUN-III. The study probes the multi-lepton signatures arising from gluinos via intermediate eweakinos and sleptons at an early stage of the LHC RUN-III. The heavier eweakinos can give rise to three or four lepton signals in which the squark hierarchy between L and R types plays a crucial role. The study considers two sets of benchmark points that satisfy all the collider constraints obtained from the LHC RUN-II data. Moreover, these sets of benchmark points are mostly consistent with WMAP/PLANCK data and the muon (g-2) constraint. The corresponding results from the MVA technique demonstrate that even for an integrated luminosity of 270 $f{b}^{-1}$, the 5 $\sigma$ discovery prospect of $3l+jets+\cancel{E_T}$ for $M_{\tilde{g}}=1.8$ TeV in the wino type model is promising. The study also presents the other various models that may show up at the early stage of LHC RUN-III. The wino type models in the scenario where left squarks are light and right squarks are heavy, exhibit the best prospect of discovering gluinos in the multi-lepton channels in the LHC RUN-III experiment. This paper's findings provide crucial insights into the potential discovery of gluinos in multi-lepton channels.

   hep-phhep-exCPC(2023)·2 citations
6. 06*

   Inclusive and diffractive dijet photoproduction at the Electron-Ion Collider in NLO QCD

   V. Guzey (Jyvaskyla U. and Helsinki U.)🇫🇮 · M. Klasen (Munster U., ITP)🇩🇪

   In the framework of collinear factorization and next-to-leading order (NLO) perturbative QCD, we make predictions for inclusive and diffractive dijet photoproduction in electron-proton and electron-nucleus scattering in the EIC kinematics. We establish kinematic ranges in the ${\bar{p}}_T$, $\bar{\eta }$, $x_A^{\mathrm{obs}}$ and $x_{\gamma }^{\mathrm{obs}}$ variables, quantify sensitivity to small-$x$ nuclear PDFs, and analyze various scenarios of factorization breaking in the case of diffractive scattering.

   hep-phhep-exnucl-exActa Phys.Polon.Supp.(2023)·4 citations
7. 07*

   Fat $b$-Jet Analyses Using Old and New Clustering Algorithms in New Higgs Boson Searches at the LHC

   Amit Chakraborty🇮🇳 · Srinandan Dasmahapatra🇬🇧 · Henry Day-Hall🇨🇿 · Billy Ford🇬🇧 · Shubhani Jain🇬🇧 · Stefano Moretti🇬🇧

   We compare different jet-clustering algorithms in establishing fully hadronic final states stemming from the chain decay of a heavy Higgs state into a pair of the 125 GeV Higgs boson that decays into bottom-antibottom quark pairs. Such 4$b$ events typically give rise to boosted topologies, wherein bottom-antibottom quark pairs emerging from each 125 GeV Higgs boson tend to merge into a single, fat $b$-jet. Assuming Large Hadron Collider (LHC) settings, we illustrate how both the efficiency of selecting the multi-jet final state and the ability to reconstruct from it the masses of all Higgs bosons depend on the choice of jet-clustering algorithm and its parameter settings. We indicate the optimal choice of clustering method for the purpose of establishing such a ubiquitous Beyond the SM (BSM) signal, illustrated via a Type-II 2-Higgs Doublet Model (2HDM).

   hep-phEPJC(2023)·9 citations
8. 08*

   EFT, decoupling, Higgs boson mixing, and higher dimensional operators

   Upalaparna Banerjee🇮🇳 · Joydeep Chakrabortty🇮🇳 · Christoph Englert🇬🇧 · Wrishik Naskar🇬🇧 · Shakeel Ur Rahaman🇮🇳 · Michael Spannowsky🇬🇧

   The effective field theory (EFT) framework is a precise approximation procedure when the inherent assumptions of a large-scale separation between the Standard Model (SM) and new interactions alongside perturbativity are realised. Constraints from available data might not automatically guarantee these circumstances when contrasted with UV scenarios that the EFT analysis wishes to inform. From an EFT perspective, achieving sufficient precision in navigating the alignment or decoupling limits beyond the SM scenarios can necessitate moving beyond the SM's leading, dimension six EFT deformation. Using the example of Higgs boson mixing, we demonstrated the importance of higher-dimensional terms in the EFT expansion. We analyse the relevance of virtual EFT corrections and dimension eight contributions for well-determined electroweak precision observables. We find that when moving away from the decoupling limit, the relevance of additional terms in the EFT expansion quickly becomes relevant. This demonstrates the necessity to move beyond dimension six interactions for any scenario that contains Higgs boson mixing.

   hep-phhep-exPRD(2024)·12 citations
9. 09*

   PC-JeDi: Diffusion for Particle Cloud Generation in High Energy Physics

   Matthew Leigh🇨🇭 · Debajyoti Sengupta🇨🇭 · Guillaume Quétant🇨🇭 · John Andrew Raine🇨🇭 · Knut Zoch🇨🇭 · Tobias Golling🇨🇭

   In this paper, we present a new method to efficiently generate jets in High Energy Physics called PC-JeDi. This method utilises score-based diffusion models in conjunction with transformers which are well suited to the task of generating jets as particle clouds due to their permutation equivariance. PC-JeDi achieves competitive performance with current state-of-the-art methods across several metrics that evaluate the quality of the generated jets. Although slower than other models, due to the large number of forward passes required by diffusion models, it is still substantially faster than traditional detailed simulation. Furthermore, PC-JeDi uses conditional generation to produce jets with a desired mass and transverse momentum for two different particles, top quarks and gluons.

   hep-phcs.LGhep-exSciPost Phys.(2024)·77 citations
10. 10*

    Full NLO QCD predictions for Higgs-pair production in the 2-Higgs-Doublet Model

    J. Baglio🇨🇭 · F. Campanario🇪🇸 · S. Glaus🇩🇪 · M. Mühlleitner🇩🇪 · J. Ronca🇮🇹 · M. Spira🇨🇭

    After the discovery of the Higgs boson in 2012 at the CERN Large Hadron Collider (LHC), the study of its properties still leaves room for an extended Higgs sector with more than one Higgs boson. 2-Higgs Doublet Models (2HDMs) are well-motivated extensions of the Standard Model (SM) with five physical Higgs bosons: two CP-even states $h$ and $H$, one CP-odd state $A$, and two charged states $H_{}^{\pm }$. In this letter, we present the calculation of the full next-to-leading order (NLO) QCD corrections to $hH$ and $AA$ production at the LHC in the 2HDM at small values of the ratio of the vacuum expectation values, $\tan \beta$, including the exact top-mass dependence everywhere in the calculation. Using techniques applied in the NLO QCD SM Higgs pair production calculation, we present results for the total cross section as well as for the invariant Higgs-pair-mass distribution at the LHC. We also provide the top-quark scale and scheme uncertainties which are found to be sizeable.

    hep-phhep-exEPJC(2023)·14 citations
11. 11*

    Machine Learning based KNO-scaling of charged hadron multiplicities with Hijing++

    Gábor Bíró🇭🇺 · Gergely Gábor Barnaföldi🇭🇺

    The scaling properties of the final state charged hadron and mean jet multiplicity distributions, calculated by deep residual neural network architectures with different complexities are presented. The parton-level input of the neural networks are generated by the Hijing++ Monte Carlo event generator. Hadronization neural networks, trained with $\sqrt{s}=7$ TeV events are utilized to perform predictions for various LHC energies from $\sqrt{s}=0.9$ TeV to 13 TeV. KNO-scaling properties were adopted by the networks at hadronic level.

    hep-phJ.Phys.Conf.Ser.(2026)·0 citations
12. 12*

    Resonant production of dark photons from axion without a large coupling

    Naoya Kitajima🇯🇵 · Fuminobu Takahashi🇯🇵

    Dark photons could be produced resonantly by the oscillating axion field in the early universe. This resonant production mechanism has been used in various contexts, including dark photon dark matter and primordial magnetic field production. However, for this resonant production to work in an expanding universe, a large axion-dark photon coupling is required, which is not easy to realize in terms of model building and requires the introduction of many charged fermions and/or the complex clockwork mechanism. In this paper, we present a new scenario that efficiently produces dark photons from the axion with a much smaller coupling. This is possible by modifying the dynamics of axion and significantly delaying the onset of oscillations, as in the so-called trapped misalignment mechanism. As a specific example, we consider models in which dark photon production occurs efficiently despite the small axion-dark photon coupling by temporally trapping an axion in a wrong minimum and releasing it after the Hubble parameter becomes much smaller than the axion mass. In this scenario, it is expected that the polarization asymmetry of dark photons and gravitational waves generated from dark photons will be significantly reduced.

    hep-phastro-ph.COPRD(2023)·22 citations
13. 13*

    Mono-Photon Events with Light Higgs bosons in Secluded UMSSM

    Yaşar Hiçyılmaz🇹🇷 · Levent Selbuz🇹🇷 · Cem Salih Ün🇹🇷

    We explore the Higgs boson implications of a class of supersymmetric models, which extends the MSSM gauge group by a $U(1{)}^{\prime }$ symmetry, which is broken at low energy scales by VEVs of four MSSM singlet fields. These singlets also form a secluded sector, and one of them is allowed to interact with the MSSM Higgs fields directly. After the $U(1{)}^{\prime }$ and electroweak symmetry breaking, the low scale spectra include six CP-even and 4 CP-odd Higgs bosons, whose masses can lie from 80 GeV to 2-3 TeV. We find that the heavy CP-even Higgs bosons can be probed through their decays into a pair of SM gauge bosons currently up to about $m_{h_i}\simeq 1.5$ TeV, while their probe can be extended to about $m_{h_i}\simeq 2.5$ TeV in near future. The most interesting feature of the low scale spectra in the class of Secluded $U(1{)}^{\prime }$ models is to include two light CP-odd Higgs bosons whose masses are bounded at about 250 GeV by the current collider and DM experiments, when the LSP neutralino is mostly formed by the MSSM singlets. These light CP-odd Higgs bosons should be formed by the MSSM singlet scalars to be consistent with the current constraints. Despite their singlet nature, they can be traced through their associated production with photons. In our work, we consider their productions at the collider experiments together with photons, and we realize that these light Higgs bosons can potentially be probed during Run-3 experiments of LHC when they are lighter than about 100 GeV. We also show that Run-4 and HL-LHC experiments will be able to probe these light scalars up to about 250 GeV.

    hep-phPRD(2023)·6 citations
14. 14*

    Towards Resolving the Gallium Anomaly

    Vedran Brdar🇨🇭 · Julia Gehrlein🇨🇭 · Joachim Kopp🇨🇭

    A series of experiments studying neutrinos from intense radioactive sources have reported a deficit in the measured event rate which, in combination, has reached a statistical significance of $\sim 5\sigma$. In this paper, we explore avenues for explaining this anomaly, both within the Standard Model and beyond. First, we discuss possible biases in the predicted cross section for the detection reaction ${\nu }_e{+}^{71}\text{Ga}\to e^{-}{+}^{71}\text{Ge}$, which could arise from mismeasurement of the inverse process, ${}^{71}\text{Ge}$ decay, or from the presence of as yet unknown low-lying excited states of ${}^{71}\text{Ga}$. The latter would imply that not all ${}^{71}\text{Ge}$ decays go to the ground state of ${}^{71}\text{Ga}$, so the extraction of the ground state-to-ground state matrix element relevant for neutrino capture on gallium would be incorrect. Second, we scrutinize the measurement of the source intensity in gallium experiments, and we point out that a $\sim 2\%$ error in the branching ratios for ${}^{51}\text{Cr}$ decay would be enough to explain the anomaly. Third, we investigate the calibration of the radiochemical germanium extraction efficiency as a possible origin of anomaly. Finally, we outline several new explanations beyond the Standard Model, including scenarios with sterile neutrinos coupled to fuzzy dark matter or to dark energy, as well as a model with decaying sterile neutrinos. We critically assess the viability of these scenarios, and others that have been proposed, in a summary table.

    hep-phhep-exnucl-thJHEP(2023)·30 citations
15. 15*

    Multi-scale Imaging of Nuclear Deformation at the Electron Ion Collider

    Heikki Mäntysaari🇫🇮 · Björn Schenke🇺🇸 · Chun Shen🇺🇸 · Wenbin Zhao🇺🇸

    We show within the Color Glass Condensate framework that exclusive vector meson production at high energy is sensitive to the geometric deformation of the target nucleus at multiple length scales. Studying $e+$U collisions and varying the deformation of the uranium target, we demonstrate that larger deformations result in enhanced incoherent vector meson production cross sections. Further, different multipole deformation parameters affect different regions of transverse momentum transfer. Employing JIMWLK evolution to study the Bjorken-$x$ dependence of our results, we find that the ratio of incoherent to coherent cross sections decreases with decreasing $x$, largely independently of the quadrupole deformation of the target. Comparing results for the same process using ${}^{20}\mathrm{Ne}$ targets with ${}^{16}\mathrm{O}$ targets, we find that differences in deformation are clearly visible in the incoherent cross section. These findings show that certain observables at the Electron-Ion Collider are very sensitive to nuclear structure. Consequently, deformations need to be taken into account when interpreting experimental results. More importantly, this also means that $|t|$-differential diffractive vector meson production could become a powerful tool, enabling the most direct measurements of nuclear structure at different length scales, ranging from nuclear deformation at low $|t|$ to nucleon- and subnucleon-size scales at higher $|t|$.

    ↳ nucl-thhep-phnucl-exPRL(2023)·43 citations
16. 16*

    Improved bounds on the bosonic dark matter with pulsars in the Milky Way

    Dicong Liang🇨🇳 · Lijing Shao🇨🇳

    Neutron stars (NSs) can be used to constrain dark matter (DM) since a NS can transform into a black hole (BH) if it captures sufficient DM particles and exceeds the Chandrasekhar limit. We extend earlier work and for the first time take into account the Galactic motion of individual NSs, which changes the amount of the captured DM by as large as one to two orders of magnitude. We systematically apply the analysis to 413 NSs in the Milky Way, and constrain the DM particle mass and its interaction with nucleon simultaneously. We find that the most stringent bound is placed by a few NSs and the bound becomes stronger after considering the Galactic motion. The survival of observed NSs already excludes a cross section ${\sigma }_{nX}\gtrsim 10^{-45}{\mathrm{cm}}^2$ for DM particles with mass from $100\mathrm{MeV}$ to $10^3\mathrm{GeV}$. Especially for a mass around $10\mathrm{GeV}$, the constraint on the cross section is as stringent as ${\sigma }_{nX}\lesssim 10^{-49}{\mathrm{cm}}^2$.

    ↳ astro-ph.HEhep-phJCAP(2023)·15 citations
17. 17*

    $\Lambda \bar{\Lambda }$ final-state interaction in the reactions $e^{+}{e}^{-}\to \varphi \Lambda \bar{\Lambda }$ and $e^{+}{e}^{-}\to \eta \Lambda \bar{\Lambda }$

    Johann Haidenbauer🇩🇪 · Ulf-G. Meißner🇩🇪

    Near-threshold $\Lambda \bar{\Lambda }$ mass spectra for the reactions $e^{+}{e}^{-}\to \eta \Lambda \bar{\Lambda }$ and $e^{+}{e}^{-}\to \varphi \Lambda \bar{\Lambda }$ are investigated with an emphasis on the role played by the interaction in the $\Lambda \bar{\Lambda }$ system. A variety of $\Lambda \bar{\Lambda }$ potential models is employed that have been established in the analysis of data on $p\bar{p}\to \Lambda \bar{\Lambda }$ in the past. It is shown that the near-threshold enhancement observed for the two $e^{+}{e}^{-}$ reactions can be reproduced by considering the $\Lambda \bar{\Lambda }$ final-state interaction in the partial waves suggested by the helicity-angle analysis of the experiments. For $e^{+}{e}^{-}\to \eta \Lambda \bar{\Lambda }$ the same $\Lambda \bar{\Lambda }$ $S$-wave interaction as in $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$ is relevant and with it a consistent description of the pertinent measurements can be achieved. It is pointed out that a nonzero threshold cross section as observed for the latter reaction is not supported by the new $\eta \Lambda \bar{\Lambda }$ data.

    ↳ nucl-thhep-phEPJA(2023)·6 citations
18. 18*

    Pseudogauge freedom and the SO(3) algebra of spin operators

    Sourav Dey🇮🇳 · Wojciech Florkowski🇵🇱 · Amaresh Jaiswal🇮🇳 · Radoslaw Ryblewski🇵🇱

    The energy-momentum and spin tensors for a given theory can be replaced by alternative expressions that obey the same conservation laws for the energy, linear momentum, as well as angular momentum but, however, differ by the local redistribution of such quantities (with global energy, linear momentum, and angular momentum remaining unchanged). This arbitrariness is described in recent literature as the pseudogauge freedom or symmetry. In this letter, we analyze several pseudogauges used to formulate the relativistic hydrodynamics of particles with spin 1/2 and conclude that the canonical version of the spin tensor has an advantage over other forms as only the canonical definition defines the spin operators that fulfill the SO(3) algebra of angular momentum. This result sheds new light on the results encountered in recent papers demonstrating pseudogauge dependence of various physical quantities. It indicates that for spin-polarization observables, the canonical version is fundamentally better suited for building a connection between theory and experiment.

    ↳ hep-thhep-phnucl-thPLB(2023)·29 citations
19. 19*

    Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view

    Xiaohang Dai🇨🇦 · Lingda Kong · Qingcui Bu · Andrea Santangelo🇩🇪 · Shu Zhang🇨🇳 · Long Ji · Shuangnan Zhang🇨🇳 · Emre Seyit Yorgancioglu

    In this work, using \textit{NICER} and \textit{Insight}-HXMT observations, we present a study of the broadband spectral and timing evolution of the source throughout the first reflare, which occurred about 4 months after the major outburst. Our findings suggest that during the reflare, below a critical luminosity $L_{\mathrm{crit}}\sim 2.5\times 10^{36}$ (D/2.2 kpc)${}^2$ erg s${}^{-1}$, the scale of the corona shrinks in the radial direction, whereas the inner radius of the disk does not change considerably; however, the inner radius of the disk starts to move inward when the source exceeds the critical luminosity. We conclude that at low luminosity the increase in accretion rate only heats up the inner zone of the accretion disc without the transfer of angular momentum which occurs above a certain luminosity.

    ↳ astro-ph.HEhep-phMNRAS(2023)·10 citations
20. 20*

    Axion optical induction of antiferromagnetic order

    Jian-Xiang Qiu🇨🇳 · Christian Tzschaschel · Junyeong Ahn · Anyuan Gao · Houchen Li🇨🇳 · Xin-Yue Zhang · Barun Ghosh · Chaowei Hu · Yu-Xuan Wang🇨🇳 · Yu-Fei Liu🇨🇳 · Damien Bérubé · Thao Dinh and 16 other authors

    Using circularly-polarized light to control quantum matter is a highly intriguing topic in physics, chemistry and biology. Previous studies have demonstrated helicity-dependent optical control of spatial chirality and magnetization $M$. The former is central for asymmetric synthesis in chemistry and homochirality in bio-molecules, while the latter is of great interest for ferromagnetic spintronics. In this paper, we report the surprising observation of helicity-dependent optical control of fully-compensated antiferromagnetic (AFM) order in 2D even-layered MnBi${}_2$Te${}_4$, a topological Axion insulator with neither chirality nor $M$. We further demonstrate helicity-dependent optical creation of AFM domain walls by double induction beams and the direct reversal of AFM domains by ultrafast pulses. The control and reversal of AFM domains and domain walls by light helicity have never been achieved in any fully-compensated AFM. To understand this optical control, we study a novel type of circular dichroism (CD) proportional to the AFM order, which only appears in reflection but is absent in transmission. We show that the optical control and CD both arise from the optical Axion electrodynamics, which can be visualized as a Berry curvature real space dipole. Our Axion induction provides the possibility to optically control a family of $\mathcal{P}\mathcal{T}$-symmetric AFMs such as Cr${}_2$O${}_3$, CrI${}_3$ and possibly novel states in cuprates. In MnBi${}_2$Te${}_4$, this further opens the door for optical writing of dissipationless circuit formed by topological edge states.

    ↳ cond-mat.mes-hallcond-mat.mtrl-scihep-phNature Materials(2023)·12 citations
21. 21*

    Enhancing Bispectrum Estimators for Galaxy Redshift Surveys with Velocities

    Julius Wons🇦🇺 · Emanuela Dimastrogiovanni🇳🇱 · Matteo Fasiello🇪🇸 · Jan Hamann🇦🇺 · Matthew C. Johnson🇨🇦

    We forecast the ability of bispectrum estimators to constrain primordial non-Gaussianity using future photometric galaxy redshift surveys. A full-sky survey with photometric redshift resolution of ${\sigma }_z/(1+z)=0.05$ in the redshift range $0.2<z<2$ can provide constraints $\sigma (f_{\mathrm{NL}}^{\mathrm{local}})=3.4$, $\sigma (f_{\mathrm{NL}}^{\mathrm{equil}})=15$, and $\sigma (f_{\mathrm{NL}}^{\mathrm{orth}})=17$ for the local, equilateral, and orthogonal shapes respectively, delivering constraints on primordial non-Gaussianities competitive to those from the cosmic microwave background. We generalize these results by deriving a scaling relation for the constraints on the amplitude of primordial non-Gaussianity as a function of redshift error, depth, sky coverage, and nonlinear scale cutoff. Finally, we investigate the impact that photometric calibration errors on the largest scales will have on the constraining power of future experiments. We show that peculiar velocities reconstructed via kinetic Sunyaev Zeldovich tomography can be used to mitigate the impact of calibration errors on primordial non-Gaussianity constraints.

    ↳ astro-ph.COhep-phhep-thPRD(2023)·1 citation

* 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.