bluuebunny/crossref_metadata_2025_split huggingface dataset:
One-loop impact factors for heavy quarkonium production: S-wave case
Authors: Nefedov Maxim A. 
Published: January 2025

Abstract
With the aim to extend the study of inclusive heavy quarkonium production at forward rapidities with the resummation of high partonic center-of-momentum-energy logarithms beyond Leading Logarithmic Approximation (LLA), the explicit analytic results for one-loop corrections to the following impact factors had been obtained: γR → $$ Q\overline{Q}\ \left[{^1S}_0^{\left[8\right]}\right] $$
Q

Q
¯

S

1

0

8

, gR → $$ Q\overline{Q}\ \left[{^1S}_0^{\left[1\right]}\right] $$
Q

Q
¯

S

1

0

1

, gR → $$ Q\overline{Q}\ \left[{^1S}_0^{\left[8\right]}\right] $$
Q

Q
¯

S

1

0

8

and gR →$$ Q\overline{Q}\ \left[{^3S}_1^{\left[8\right]}\right] $$
Q

Q
¯

S

3

1

8

, with R being the Reggeized gluon and Q is the heavy quark. The computation is done in the framework of Lipatov’s gauge-invariant EFT for Multi-Regge processes in QCD with the tilted-Wilson-line regularisation for rapidity divergences. As expected, only single-logarithmic rapidity divergence proportional to the one-loop Regge trajectory of a gluon remains in the final result for impact-factors. Numerical comparison with Regge limits (s/(–t) ≫ 1) of one-loop QCD amplitudes, described in the paper, provides a strong cross-check of obtained results. The relations of obtained results with other regularisation schemes for rapidity divergences used in low-x physics, such as BFKL scheme, High-Energy Factorisation (HEF) scheme and shockwave scheme, are given.
Pulsating string solution and stability in two parameter χ-deformed background
Authors: Nayak Rashmi R , Padhi Nibedita , Samal Manoranjan 
Published: January 2025

Abstract
In this paper, we investigate pulsating string solutions within the context of two parameter χ-deformed $$ \mathcal{R} $$
R
× S2 background. We derive the energy and oscillation number relation for the deformed $$ \mathcal{R} $$
R
× S2 in short string limit. Additionally, we derive the first order perturbation equation for pulsating string in this specific background. As a special case of the two parameter deformed background, we examine the stability of the pulsating string solution in one parameter deformed $$ \mathcal{R} $$
R
× S2 and AdS3 background by setting one of the deformation parameters to zero.
Path integral of free fields and the determinant of Laplacian in warped space-time
Authors: Chakraborty Soumangsu , Hashimoto Akikazu , Nastase Horatiu 
Published: January 2025

Abstract
We revisit the problem of computing the determinant of Klein-Gordon operator ∆ = −∇2 + M2 on Euclideanized AdS3 with the Euclideanized time coordinate compactified with period β, H3/Z, by explicitly computing its eigenvalues and computing their product. Upon assuming that eigenfunctions are normalizable on H3/Z, we found that there are no such eigenfunctions. Upon closer examination, we discover that the intuition that H3/Z is like a box with normalizable eigenfunctions was false, and that there is, instead, a set of eigenfunctions which forms a continuum. Somewhat to our surprise, we find that there is a different operator $$ \overset{\sim }{\Delta } $$

∆
~

= r2∆, which has the property that (1) the determinant of ∆ and the determinant of r2∆ have the same dependence on β, and that (2) the Green’s function of ∆ can be spectrally decomposed into eigenfunctions of $$ \overset{\sim }{\Delta } $$

∆
~

. We identify the $$ \overset{\sim }{\Delta } $$

∆
~

operator as the “weighted Laplacian” in the context of warped compactifications, and comment on possible applications.
A class of ghost-free theories in symmetric teleparallel geometry
Authors: Bello-Morales Antonio G. , Jiménez Jose Beltrán , Cano Alejandro Jiménez , Koivisto Tomi S. , Maroto Antonio L. 
Published: January 2025

Abstract
Theories formulated in the arena of teleparallel geometries are generically plagued by ghost-like instabilities or other pathologies that are ultimately caused by the breaking of some symmetries. In this work, we construct a class of ghost-free theories based on a symmetry under Transverse Diffeomorphisms that is naturally realised in symmetric teleparallelism. We explicitly show their equivalence to a family of theories with an extra scalar field plus a global degree of freedom and how Horndeski theories and healthy couplings to matter fields can be readily accommodated.
Classification of conformal carroll algebras
Authors: Afshar Hamid , Bekaert Xavier , Najafizadeh Mojtaba 
Published: January 2025

Abstract
We classify a one-parameter family, $$ \mathfrak{confcar}{\mathfrak{r}}_z\left(d+1\right) $$
confcar

r
z

d
+
1

, of conformal extensions of the Carroll algebra in arbitrary dimension with z being the anisotropic scaling exponent. We further obtain their infinite-dimensional extensions, $$ {\overset{\sim }{\mathfrak{confcarr}}}_z\left(d+1\right) $$

confcarr
~

z

d
+
1

, and discuss their corresponding finite-dimensional truncated subalgebras when the scaling exponent is integer or half-integer. For all these conformal extensions, we also constrain the 2-point and 3-point correlation functions with electric and/or magnetic features.
The chiral torsional anomaly and the Nieh-Yan invariant with and without boundaries
Authors: Erdmenger Johanna , Matthaiakakis Ioannis , Meyer René , Vassilevich Dmitri 
Published: January 2025

Abstract
There exists a long-standing debate regarding the torsion contribution to the 4d chiral anomaly of a Dirac fermion. Central to this debate is the Nieh-Yan anomaly, which has been considered ill-defined and a regularization artifact. Using a heat-kernel approach, we examine the relationship between the Dirac operator index, the Nieh-Yan invariant and the torsional anomaly. We show the Nieh-Yan invariant vanishes on spacetimes without boundaries, if the Dirac index is well-defined. In the known examples of non-vanishing Nieh-Yan invariant on manifolds without boundaries, the heat kernel expansion breaks down, making the index ill-defined. Finally, for finite boundaries we identify several finite bulk and boundary anomaly terms, alongside bulk and boundary Nieh-Yan terms. We construct explicit counterterms that cancel the Nieh-Yan terms and argue that the boundary terms give rise to a torsional anomalous Hall effect. Our results emphasize the importance of renormalization conditions, as these can affect the non-thermal Nieh-Yan anomaly coefficients. In addition, we demonstrate that anomalous torsional transport may arise even without relying on the Nieh-Yan invariant.
Holography for confined and deformed theories: TsT-generated solutions in type IIB supergravity
Authors: Castellani Federico , Nunez Carlos 
Published: January 2025

Abstract
In this paper, we present a series of solutions of type IIB Supergravity, obtained through the TsT deformation of a seed background that is holographically dual to $$ \mathcal{N} $$
N
= 4 Super Yang-Mills theory compactified on a circle (with a twist). We explore various holographic observables, focusing on disentangling the contributions of confinement, marginal deformations, and their interplay. Additionally, we provide a detailed analysis of how certain observables are influenced by the dynamics of the Kaluza-Klein (KK) modes arising from the circle compactification. Our results offer an improved understanding of the connections between the type IIB deformed backgrounds and the dual QFTs.
Electroweak gauge invariant Higgs multiplets
Authors: Maniatis M. 
Published: January 2025

Abstract
We investigate the potential of general Higgs multiplets. We establish the domain of general Higgs multiplets within the context of the adjoint representation. The construction of the most general potential for arbitrary multiplets is achieved using the irreducible, totally symmetric representation of tensor products of doublets. Furthermore, we explore symmetry transformations of the Higgs multiplets, with particular emphasis on CP symmetries.
U-duality in quantum M2-branes and gauged supergravities
Authors: del Moral M. P. García , Heras C. las , Restuccia A. 
Published: January 2025

Abstract
In this paper, we study the relation of the M2-brane with fluxes and monodromy in SL(2, ℤ), which has a quantum discrete supersymmetric spectrum with finite multiplicity and type IIB gauged supergravities in nine dimensions. SL(2, ℤ) is the group of isotopy classes of the area-preserving diffeomorphisms. The global description of these M2-branes we are considering is formulated on twisted torus bundles, and they are classified in terms of H2(Σ, ℤρ), or equivalently, by their coinvariants for a given monodromy subgroup. We find the ‘gauge’ symmetries between equivalent M2-branes on torus bundles with monodromy that lead to ℝ, SO(2), or SO(1, 1), the symmetry groups of type IIB gauged supergravities in 9d. We obtain an explicit relation between the equivalent classes of M2-brane bundles and the mass parameters that classify the gaugings of type IIB supergravities in 9d. We also find that the symmetries between inequivalent M2-branes on twisted torus bundles for a given monodromy are related to ℤ, ℤ3, ℤ5, ℤ9, or ℤ2n − 7 for n ≥ 5, the U-duality symmetry group, a subgroup of SL(2, ℤ). In distinction, in the case without monodromy, related to type II maximal supergravity at low energies, its U-duality group corresponds to the full SL(2, ℤ).
Coherent collision integrals for neutrino transport equations
Authors: Kainulainen Kimmo , Parkkinen Harri 
Published: January 2025

Abstract
We present quantum kinetic equations for neutrinos and derive Feynman rules for computing scattering rates involving coherent states. Our rules encompass both flavour- and particle-antiparticle coherence and allow writing down the scattering matrix elements and collision integrals with the same intuitive ease as with the usual non-coherent Feynman rules. Our results are useful for computing collision rates that arise routinely in the context of coherently mixing neutrinos with arbitrary masses. We give several explicit examples, including some collision integrals for coherently mixing neutrinos in supernovae.
Uniting low-energy semileptonic and hadronic anomalies within SMEFT
Authors: Datta Alakabha , Kumar Jacky , Kumbhakar Suman , London David 
Published: January 2025

Abstract
Two categories of four-fermion SMEFT operators are semileptonic (two quarks and two leptons) and hadronic (four quarks). At tree level, an operator of a given category contributes only to processes of the same category. However, when the SMEFT Hamiltonian is evolved down from the new-physics scale to low energies using the renormalization-group equations (RGEs), due to operator mixing this same SMEFT operator can generate operators of the other category at one loop. Thus, to search for a SMEFT explanation of a low-energy anomaly, or combination of anomalies, one must: (i) identify the candidate semileptonic and hadronic SMEFT operators, (ii) run them down to low energy with the RGEs, (iii) generate the required low-energy operators with the correct Wilson coefficients, and (iv) check that all other constraints are satisfied. In this paper, we illustrate this method by finding all SMEFT operators that, by themselves, provide a combined explanation of the (semileptonic) $$ \overline{b}\to \overline{s}{\ell}^{+}{\ell}^{-} $$

b
¯

→

s
¯

ℓ
+

ℓ
−

anomalies and the (hadronic) B → πK puzzle.
Long-distance N-partite information for fermionic CFTs
Authors: Agón César A. , Bueno Pablo , van der Velde Guido 
Published: January 2025

Abstract
The mutual information, I2, of general spacetime regions is expected to capture the full data of any conformal field theory (CFT). For spherical regions, this data can be accessed from long-distance expansions of the mutual information of pairs of regions as well as of suitably chosen linear combinations of mutual informations involving more than two regions and their unions — namely, the N-partite information, IN. In particular, the leading term in the I2 long-distance expansion is fully determined by the spin and conformal dimension of the lowest-dimensional primary of the theory. When the operator is a scalar, an analogous formula for the tripartite information I3 contains information about the OPE coefficient controlling the fusion of such operator into its conformal family. When it is a fermionic field, the coefficient of the leading term in I3 vanishes instead. In this paper we present an explicit general formula for the long-distance four-partite information I4 of general CFTs whose lowest-dimensional operator is a fermion ψ. The result involves a combination of four-point and two-point functions of ψ and $$ \overline{\psi} $$

ψ
¯

evaluated at the locations of the regions. We perform explicit checks of the formula for a (2 + 1)-dimensional free fermion in the lattice finding perfect agreement. The generalization of our result to the N-partite information (for arbitrary N) is also discussed. Similarly to I3, we argue that I5 vanishes identically at leading order for general fermionic theories, while the IN with N = 7, 9, … only vanish when the theory is free.
Half-BPS Janus solutions in AdS7
Authors: Conti Andrea , Dibitetto Giuseppe , Lozano Yolanda , Petri Nicolò , Ramírez Anayeli 
Published: January 2025

Abstract
We study half-BPS flows in gauged minimal 7d supergravity featured by an AdS3× S3 slicing of the metric, supported by a dyonic three-form field. We first present a novel strategy for analytic integration of the BPS equations, which makes use of the integrals of motion. Subsequently, we discuss the suitable choice of integration constants that gives rise to smooth geometries. These flows are asymptotically locally AdS7 and close off smoothly reproducing an AdS3× ℝ4 geometry. We then discuss their uplifts to 11d and massive IIA supergravity and observe that they describe one-parameter deformations of their AdS7× S4 and AdS7× S3 vacua, respectively, their holographic interpretation being as conformal defect CFT2’s within the corresponding dual SCFT6’s. We conclude with the computation of the holographic central charge, by focussing on the M-theory interpretation.
Model-independent search for T violation with T2HK and DUNE
Authors: Chatterjee Sabya Sachi , Patra Sudhanwa , Schwetz Thomas , Sharma Kiran 
Published: January 2025

Abstract
We consider the time reversal (T) transformation in neutrino oscillations in a model-independent way by comparing the observed transition probabilities at two different baselines at the same neutrino energy. We show that, under modest model assumptions, if the transition probability $$ {P}_{\nu_{\mu}\to {\nu}_e} $$

P

ν
μ

→

ν
e

around Eν ≃ 0.86 GeV measured at DUNE is smaller than the one at T2HK the T symmetry has to be violated. Experimental requirements needed to achieve good sensitivity to this test for T violation are to obtain enough statistics at DUNE for Eν ≲ 1 GeV (around the 2nd oscillation maximum), good energy resolution (better than 10%), and near-detector measurements with a precision of order 1% or better.
Canine models of inherited retinal diseases: from neglect to well-recognized translational value
Authors: Dufour Valérie L. , Aguirre Gustavo D. 
Published: December 2024

Abstract
Large animal models of inherited retinal diseases, particularly dogs, have been extensively used over the past decades to study disease natural history and evaluate therapeutic interventions. Our group of investigators at the University of Pennsylvania, School of Veterinary Medicine, has played a pivotal role in characterizing several of these animal models, documenting the natural history of their diseases, developing gene therapies, and conducting proof-of-concept studies. Additionally, we have assessed the potential toxicity of these therapies for human clinical trials, contributing to the regulatory approval of voretigene neparvovec-rzyl (Luxturna®) by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) for the treatment of patients with confirmed biallelic mutation-associated retinal dystrophy. In this review, we aim to summarize the clinical features of a subset of these diseases and reflect on the challenges encountered in integrating canine models into the translational pipeline.
Difficult cannulation during endoscopic retrograde cholangiopancreatography—needle-knife precut versus transpancreatic sphincterotomy on the basis of successful cannulation and adverse events
Authors: Gustafsson Arvid , Tingstedt Bobby , Olsson Greger 
Published: December 2024

Abstract

Background
When cannulation is challenging during endoscopic retrograde cholangiopancreatography (ERCP), and the standard guidewire technique with sphincterotomy is unsuccessful, alternative cannulation techniques can be used to access the biliary tree. The purpose of this study was to compare the incidence of adverse events and cannulation success rates between transpancreatic sphincterotomy (TPS) and precut sphincterotomy (PCS).

Methods
Data from the Swedish Registry for Gallstone Surgery and ERCP (GallRiks), collected from 2011 to 2022, were analyzed. A total of 105,303 ERCP procedures were recorded in GallRiks during the study period. After exclusions, the study population consisted of 47,486 ERCP procedures. Of these, 4547 received PCS and 3273 received TPS. The remaining 39,666 ERCP procedures with conventional sphincterotomy served as the control group. The primary endpoints were successful cannulation and adverse events within 30 days.

Results
Successful cannulation was more frequent with the TPS technique than with the PCS technique (86.5% vs. 69.7%), but both groups had a lower cannulation rate than the control group (92.4%; OR-PCS 0.20, 95% CI 0.18–0.21; OR-TPS 0.58, 95% CI 0.52–0.64). The TPS group had a higher incidence of adverse events than the PCS group (24.1% vs. 18.8%) and both groups had a higher incidence of adverse events than the control group (15.5%; OR-PCS 1.25, 95% CI 1.15–1.36; OR-TPS 1.71, 95% CI 1.57–1.87). Adverse events for TPS were driven by a higher incidence of pancreatitis (10.5% vs. 6.4% vs. 4.5%; OR 2.53, 95% CI 2.23–2.86) and perforation (1.6% vs. 0.8% vs. 0.5%; OR 2.99, 95% CI 2.20–4.06) compared to both PCS and control.

Conclusion
TPS is more successful at cannulation than PCS; however, this success comes at a higher cost in terms of adverse events, particularly pancreatitis and perforation.

Graphical abstract
Mesopancreas dissection level 3 for pancreatic head cancer in combined robotic/open pancreatoduodenectomy: a propensity score-matched study
Authors: Shyr Bor-Shiuan , Wang Shin-E , Chen Shih-Chin , Shyr Yi-Ming , Shyr Bor-Uei 
Published: December 2024

Abstract

Background
Mesopancreas dissection (MPD) level 3 in combined robotic/open pancreatoduodenectomy (CR/OPD) is technique-demanding. This study aims to clarify the feasibility and justification of MPD level 3.

Methods
Propensity score matching (PSM) analysis was conducted for 208 patients with pancreatic head cancer undergoing CR/OPD with or without MPD level 3. The comparison focused on surgical and oncological outcomes.

Results
After PSM, each group comprised 86 patients. Surgical outcomes were comparable between these two groups, except longer operation time for MPD level 3 (+), median: 10.5 vs. 9.5 h, p = 0.002. MPD level 3 (+) group exhibited higher lymph node yield, median: 20 vs. 17, p < 0.001, and curative (R0) resection rate, 89.5% vs. 69.8%, p = 0.001, compared to MPD level 3 (−) group. Among the entire cohort, no significant survival difference was observed between the MPD Level 3 (+) and (−) groups. Survival outcome for R0 resection after CR/OPD was notably better than those for R2 resection, 5-year survival: 34.0% vs. 0, p = 0.038. However, within the curative (R0) resection cohort, no survival difference was observed between the MPD level 3 (+) and MPD level 3 (−) groups.

Conclusion
MPD level 3 in CR/OPD is technically feasible without increasing the surgical risks but takes one hour extra operating time. Incorporation of MPD level 3 does not confer a survival advantage within the curative (R0) resection cohort. The primary focus should continue to be on achieving curative (R0) resection to maximize the survival benefits for pancreatic head cancer.
IPNA clinical practice recommendations on care of pediatric patients with pre-existing kidney disease during seasonal outbreak of COVID-19
Authors: Alhasan Khalid A. , Raina Rupesh , Boyer Olivia , Koh Jean , Bonilla-Felix Melvin , Sethi Sidharth K. , Amer Yasser S. , Coccia Paula , Temsah Mohamad-Hani , Exantus Judith , Khan Samina A. , Zhong Xuhui , Koch Vera , Duzova Ali , Vasudevan Anil , McCulloch Mignon , Allen Upton , Filler Guido , Montini Giovanni ,   On behalf of the International Pediatric Nephrology Association, Haffner Dieter , Marlais Matko , Morello William , Smith Jodi M. , Dharnidharka Vikas , Ashoor Isa F. , Trnka Peter , Prestidge Chanel , Bagga Arvind , Hari Pankaj , Ma Alison , Mantan Mukta , Rodriguez Luis Ignacio , Restrepo Jaime M. , Bresolin Nilzete Liberato , Safouh Hesham , Bhimma Rajendra , Admani Bashir , Esezobor Chris 
Published: December 2024

AbstractThe coronavirus disease 2019 (COVID-19) pandemic, instigated by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has profoundly impacted healthcare infrastructures around the globe. While children are usually asymptomatic or have mild symptoms, children with pre-existing kidney conditions require specialized attention. This pivotal report, championed by the International Pediatric Nephrology Association (IPNA), delivers precise and actionable recommendations tailored for pediatric patients with kidney ailments in this pandemic landscape. Central to our findings are rigorous infection control protocols. These are particularly stringent in high-risk zones, emphasizing telehealth’s indispensable role, the significance of curtailing in-person consultations, and the imperative of following rigorous guidelines in regions with heightened COVID-19 prevalence. Additionally, the report delves into vaccination approaches for children with kidney issues, highlighting that the choice of vaccine is often governed by regional accessibility and policy frameworks, rather than a universal preference. A notable observation is the potential correlation between COVID-19 vaccines and specific kidney disorders. However, establishing a direct causal link remains elusive. In summary, our research accentuates the critical need for specialized pediatric kidney care during global health crises and reaffirms the continuous research imperative, especially regarding vaccination ramifications.
Shapes of surfactant-laden Taylor bubbles in a square microchannel
Authors: Igarashi Ryota , Hachikubo Riku , Kurimoto Ryo , Hayashi Kosuke 
Published: December 2024

Abstract
Experiments on contaminated Taylor flows in a square microchannel were carried out to investigate the effects of surfactant on the bubble shape in the nose and tail regions for different surfactant properties. The nose curvature was found to be proportional to the bubble length at low surfactant concentrations, while it was independent of the concentration at high concentrations. The rate of increase in the nose curvature at the former concentrations can be expressed in terms of the surface coverage ratio. The bubble velocity decreased with increasing the nose curvature, whereas the surface tension reduced by surfactant adsorption worked better to correlate the velocity data. The curvature of the bubble tail increased steeply at low concentrations as a consequence of the early coverage due to interfacial advection. The tail curvature also had a strong correlation with the surface coverage ratio.