Diffractive Higgs production from intrinsic heavy flavors in the proton

Brodsky, Stanley J.; Kopeliovich, B. Z.; Schmidt, Iván; Soffer, Jacques

doi:10.1103/physrevd.73.113005

Cited by 76 publications

(81 citation statements)

References 53 publications

(54 reference statements)

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“…The rate for doubly diffractive Higgs production pp → p + H + p at high x F has been computed in ref. [11].…”

Section: Discussionmentioning

confidence: 99%

“…[11], the presence of high-x intrinsic heavy quark components in the proton's structure function will also lead to Higgs production at high x F through subprocesses such as gb → Hb; such reactions could be particularly important in MSSM models in which the Higgs has enhanced couplings to the b quark [13].…”

Section: Introductionmentioning

confidence: 99%

“…Thus the QQ pair in the proton |(uud) 8C (QQ) 8C > Fock state can be converted, by a single gluon exchange with the target in the hadronic collision, to a color-singlet Higgs through the matrix element < (QQ) 8C |G µν |H >. A second gluon exchange with the target nucleon allows one to produce the Higgs diffractively or semi-inclusively: pp → H + p + X, where the final state proton from the target is produced isolated in rapidity [11].…”

Section: Introductionmentioning

confidence: 99%

“…In a previous paper [11] we considered doubly diffractive Higgs production pp → p + H + p, arising from the heavy quark Fock state component, where the Higgs is produced in the fragmentation region of one of the colliding protons. The presence of a large rapidity gap and the possibility to perform a missing mass measurement which only needs detection of the two final-state protons substantially increases the chances to detect the high x F Higgs particle, since its decay to a specific channel is not required.…”

Section: Introductionmentioning

confidence: 99%

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Higgs hadroproduction at large Feynman x

et al. 2009

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We propose a novel mechanism for the production of the Higgs boson in inclusive hadronic collisions, which utilizes the presence of heavy quarks in the proton wave function. In these inclusive reactions the Higgs boson acquires the momenta of both the heavy quark and antiquark and thus carries 80% or more of the projectile's momentum. We predict that the cross section dσ/dx F (pp → HX) for the inclusive production of the Standard Model Higgs coming from intrinsic bottom Fock states is of order 150 fb at LHC energies, peaking in the region of x F ∼ 0.9. Our estimates indicate that the corresponding cross section coming from gluon-gluon fusion at x F = 0.9 is relatively negligible and therefore the peak from intrinsic bottom should be clearly visible for experiments with forward detection capabilities. The predicted cross section for the production of the Standard Model Higgs coming from * Electronic address: sjbth@slac.stanford.

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“…The rate for doubly diffractive Higgs production pp → p + H + p at high x F has been computed in ref. [11].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Higgs hadroproduction at large Feynman x

et al. 2009

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“…Interesting examples that have been proposed in the literature are: diffractive production of neutral Higgs bosons [27], and charged Higgs production at the LHC [28,29]. Application of our results to the latter process will be presented in [12].…”

Section: Summary and Implicationsmentioning

confidence: 99%

Charm parton content of the nucleon

2007

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We investigate the charm sector of the nucleon structure phenomenologically, using the most up-to-date global QCD analysis. Going beyond the common assumption of purely radiatively generated charm, we explore possible degrees of freedom in the parton parameter space associated with nonperturbative (intrinsic) charm in the nucleon. Specifically, we explore the limits that can be placed on the intrinsic charm (IC) component, using all relevant hard-scattering data, according to scenarios in which the IC has a form predicted by light-cone wave function models; or a form similar to the light sea-quark distributions. We find that the range of IC is constrained to be from zero (no IC) to a level 2-3 times larger than previous model estimates. The behaviors of typical charm distributions within this range are described, and their implications for hadron collider phenomenology are briefly discussed. *

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Light-Front Holography, Light-Front Wavefunctions, and Novel QCD Phenomena

Brodsky

Téramond

2012

Few-Body Syst

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Light-front holography is one of the most remarkable features of the AdS/CFT correspondence. In spite of its present limitations, it provides important physical insights into the non-perturbative regime of QCD and its transition to the perturbative domain. This novel framework allows hadronic amplitudes in a higher dimensional anti-de Sitter (AdS) space to be mapped to frame-independent light-front wavefunctions of hadrons in physical space-time. The model leads to an effective confining light-front QCD Hamiltonian and a single-variable light-front Schrödinger equation which determines the eigenspectrum and the light-front wavefunctions of hadrons for general spin and orbital angular momentum. The coordinate z in AdS space is uniquely identified with a Lorentz-invariant coordinate ζ which measures the separation of the constituents within a hadron at equal light-front time and determines the off-shell dynamics of the bound-state wavefunctions, and thus the fall-off as a function of the invariant mass of the constituents. The soft-wall holographic model modified by a positive-sign dilaton metric, leads to a remarkable one-parameter description of nonperturbative hadron dynamics-a semi-classical frame-independent first approximation to the spectra and light-front wavefunctions of meson and baryons. The model predicts a Regge spectrum of linear trajectories with the same slope in the leading orbital angular momentum L of hadrons and the radial quantum number n. The hadron eigensolutions projected on the free Fock basis provides the complete set of valence and non-valence light-front Fock state wavefunctions n/H (x i , k ⊥i , λ i ) which describe the hadron's momentum and spin distributions needed to compute the direct measures of hadron structure at the quark and gluon level, such as elastic and transition form factors, distribution amplitudes, structure functions, generalized parton distributions and transverse momentum distributions. The effective confining potential also creates quark-antiquark pairs from the amplitude q → qqq. Thus in holographic QCD higher Fock states can have any number of extra qq pairs. We discuss the relevance of higher Fock-states for describing the detailed structure of space and time-like form factors. The AdS/QCD model can be systematically improved by using its complete orthonormal solutions to diagonalize the full QCD light-front Hamiltonian or by applying the Lippmann-Schwinger method in order to systematically include the QCD interaction terms. A new perspective on quark and gluon condensates is also obtained.

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Diffractive Higgs production from intrinsic heavy flavors in the proton

Cited by 76 publications

References 53 publications

Higgs hadroproduction at large Feynman x

Higgs hadroproduction at large Feynman x

Charm parton content of the nucleon

Light-Front Holography, Light-Front Wavefunctions, and Novel QCD Phenomena

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