A high-energy QCD portal to exotic matter: Heavy-light tetraquarks at the HL-LHC

Celiberto, Francesco Giovanni; Papa, Alessandro

doi:10.1016/j.physletb.2023.138406

Cited by 5 publications

(6 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, for the sake of brevity, we consider just the 𝑋 𝑐𝑠 c s and 𝑋 𝑏𝑢 b ū channels, namely the ones complementary to our first study presented in Ref. [88]. Overall, we observe a falloff with increasing |𝜿 1 | across the distributions.…”

Section: Transverse-momentum Ratesmentioning

confidence: 68%

“…To this extent, we will make use of a novel set of collinear Fragmentation Functions (FFs), named TQHL1.0, suited to the VFNS fragmentation of 𝑋 𝑄𝑞 Q q tetraquarks [88]. They were obtained by performing a next-to-leading Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution of an initial-scale input for the constituent heavyquark fragmentation channel, obtained within the spin-physics inspired Suzuki-Nejad-Amiri-Ji (SNAJ) model [89][90][91][92].…”

Section: Hors D'oeuvrementioning

confidence: 99%

“…In particular, it was highlighted that the stabilizing effect is directly connected with the distinctive pattern exhibited by VFNS collinear FFs governing the production of these singly heavy-flavored particles at high transverse momentum. Subsequent analyses on vector quarkonia [81,85], charmed 𝐵 mesons [218,221], and heavy-light tetraquarks [88], clarified that this remarkable property, known as natural stability of the high-energy resummation in QCD [216], emerges as an intrinsic feature inherently associated with final states sensitive to heavy flavor.…”

Section: High-energy Qcd Phenomenology: An Incomplete Summarymentioning

confidence: 99%

See 2 more Smart Citations

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Celiberto

2023

Universe

Self Cite

View full text Add to dashboard Cite

In this review, we discuss and extend the study of the inclusive production of vector quarkonia, J/ψ and Υ, emitted with large transverse momenta and rapidities at the LHC. We adopt the novel ZCW19+ determination of fragmentation functions to depict the quarkonium production mechanism at the next-to-leading level of perturbative QCD. This approach is based on the nonrelativistic QCD formalism well adapted to describe the formation of a quarkonium state from the collinear fragmentation of a gluon or a constituent heavy quark at the lowest energy scale. We rely upon the NLL/NLO+ hybrid high-energy and collinear factorization for differential cross-sections, where the collinear formalism is enhanced by the BFKL resummation of next-to-leading energy logarithms arising in the t-channel. We employ the method to analyze the behavior of the rapidity distributions for double-inclusive vector quarkonium and inclusive vector quarkonium plus jet emissions. We discover that the natural stability of the high-energy series, previously seen in observables sensitive to the emission of hadrons with heavy flavor detected in the rapidity acceptance of LHC barrel calorimeters, becomes even more manifest when these particles are tagged in forward regions covered by endcaps. Our findings present the important message that vector quarkonia at the LHC via hybrid factorization offer a unique chance to perform precision studies of high-energy QCD, as well as an intriguing opportunity to shed light on the quarkonium production puzzle.

show abstract

Section: Transverse-momentum Ratesmentioning

confidence: 68%

Section: Hors D'oeuvrementioning

confidence: 99%

Section: High-energy Qcd Phenomenology: An Incomplete Summarymentioning

confidence: 99%

See 1 more Smart Citation

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Celiberto

2023

Universe

Self Cite

View full text Add to dashboard Cite

show abstract

“…These findings mark a significant advancement in our understanding of high-energy QCD processes and offer promising prospects for future precision studies in this area. Subsequent analyses on vector quarkonia [253,254,334,335], B c mesons [314,317], and X Qq Q q tetraquarks [318], confirmed that this remarkable feature, known as natural stability of the BFKL resummation [312], comes out as basic property connected to the inclusive emission of any given heavy-flavored particle.…”

Section: Introductionmentioning

confidence: 94%

“…By studying such observables, we can gain a more comprehensive view of how BFKL dynamics manifest across various exclusive final states, thereby enriching our understanding of high-energy QCD phenomena. We can mention: light-flavored di-hadron [280][281][282][283][284], hadron-plus-jet [249,[285][286][287][288][289], multi-jet [290][291][292][293][294][295][296][297][298][299][300][301][302] and Drell-Yan [303] angular distributions, Higgs-jet rapidity and transverse-momentum distributions [250,[304][305][306][307], heavy-flavored jet [251,308] and hadron [179][180][181][182]253,[309][310][311][312][313][314][315][316][317][318]…”

Section: Introductionmentioning

confidence: 99%

Forward & Far-Forward Heavy Hadrons with Jethad: A High-Energy Viewpoint

Celiberto

2024

Particles

View full text Add to dashboard Cite

Inspired by recent findings that semi-inclusive detections of heavy hadrons exhibit fair stabilization patterns in high-energy resummed distributions against (missing) higher-order corrections, we review and extend our studies on the hadroproduction of light and heavy hadrons tagged in forward and far-forward rapidity ranges. We analyze the NLL/NLO+ behavior of rapidity rates and angular multiplicities via the Jethad method, where the resummation of next-to-leading energy logarithms and beyond is consistently embodied in the collinear picture. We explore kinematic regions that are within LHC typical acceptances, as well as novel sectors accessible thanks the combined tagging of a far-forward light or heavy hadron at future Forward Physics Facilities and a of central particle at LHC experiments via a precise timing-coincidence setup.

show abstract

High-energy QCD dynamics from bottom flavor fragmentation at the Hi-Lumi LHC

Celiberto

2024

Eur. Phys. J. C

View full text Add to dashboard Cite

We study the inclusive production of hadrons with bottom flavor at the LHC and its luminosity upgrade. We describe the collinear fragmentation of singly b-flavored hadrons, B mesons and $$\Lambda _b$$ Λ b baryons, via the determination of fragmentation functions, while for charmed B mesons, $$B_c(^1S_0)$$ B c ( 1 S 0 ) and $$B_c(^3S_1)$$ B c ( 3 S 1 ) particles, we employ the novel set, built on the basis of state-of-the-art nonrelativistic QCD inputs. We use the Jethad multimodular working environment to analyze rapidity and transverse-momentum distributions for observables sensitive to the associated emission of two hadrons or a hadron-plus-jet system. Our reference formalism is the $$\mathrm{NLL/NLO^+}$$ NLL / NLO + hybrid collinear and high-energy factorization, where the standard collinear description is improved by the inclusions of energy logarithms resummed up to the next-to-leading approximation and beyond. We provide corroborating evidence that b-flavor emissions act as fair stabilizers of the high-energy resummation, thus serving as valuable tools for precision studies of high-energy QCD. As a bonus, we highlight that the predicted production-rate hierarchy between noncharmed b-hadrons and charmed $$B_c(^1S_0)$$ B c ( 1 S 0 ) mesons is in line with recent LHCb estimates. This serves as simultaneous benchmark both for the hybrid factorization and for the single-parton fragmentation mechanism based on initial-scale inputs calculated via the nonrelativistic QCD effective theory.

show abstract

A high-energy QCD portal to exotic matter: Heavy-light tetraquarks at the HL-LHC

Cited by 5 publications

References 82 publications

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Forward & Far-Forward Heavy Hadrons with Jethad: A High-Energy Viewpoint

High-energy QCD dynamics from bottom flavor fragmentation at the Hi-Lumi LHC

Contact Info

Product

Resources

About