activity
20142026
most citedThe Lauricella Functions and Exact String Scattering Amplitudes

17 citations · 79 across the 21 of their papers we have counts for

collaborators

22 papers

gr-qc2026

Polyakov backreaction in large D discretely self-similar collapse

Sheng-Hong Lai, Wen-Yu Wen

We study anomaly-induced semiclassical backreaction on an analytic family of discretely self-similar solutions of Einstein--Klein--Gordon theory at large spacetime dimension. Horiz…

gr-qc2026

Revisit Weak Cosmic Censorship in Einstein-Maxwell-Dilaton Black Holes: Third-order Protection, Swampland Distance Conjecture, and Weak Gravity Conjectures

Sheng-Hong Lai, Wen-Yu Wen

We extend the earlier analysis of cosmic censorship and the Weak Gravity Conjecture (WGC) in Einstein--Maxwell-dilaton (EMD) theory by performing a complete higher-order Sorce--Wal…

hep-th2023

Stringy scaling of n-point Regge string scattering amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We discover a stringy scaling behavior for a class of n-point Regge string scattering amplitudes (RSSA). The number of independent kinematics variables is found to be reduced by di…

hep-th2022

Stringy scaling of n-point hard string scattering amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

Motivated by the recent calculation of the SL(K+3,C) symmetry of n-point Lauricella string scattering amplitudes (SSA) of open bosonic string theory, we calculate ratios of the sol…

hep-th2022★ 1 cited

The symmetry of string scatterings from D-branes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

By using the solvability of Lauricella function with nonpositive integer , we show that each scattering or de…

hep-th2021

Residues of bosonic string scattering amplitudes and the Lauricella functions

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We calculate explicitly residues of all n-point Koba-Nielsen (KN) amplitudes by using on-shell recursion relation of string scattering amplitudes (SSA). In addition, we show that t…

hep-th2021★ 4 cited

The exact SL(K+3,C) symmetry of string theory

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

By using on-shell recursion relation of string scattering amplitudes (SSA), we show that all n-point SSA of the open bosonic string theory can be expressed in terms of the Lauricel…

hep-th2021

Comment on "High Energy Symmetry of String Theory"

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

Following the recent discovery of the Lauricella string scattering amplitudes (LSSA) and their associated exact SL(K+3,C) symmetry, we give a brief comment on Gross conjecture rega…

hep-th2020★ 7 cited

Recent developments of the Lauricella string scattering amplitudes and their exact SL(K+3,C) Symmetry

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

In this review we propose a new perspective to demonstrate Gross conjecture on high energy symmetry of string theory. We review the construction of the exact string scattering ampl…

hep-th2020★ 1 cited

New bosonic hard string scattering amplitudes and extended Gross conjecture in superstring theory

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We discover new hard string scattering amplitudes (HSSA) with polarizations orthogonal to the scattering plane in the NS sector of 10D open superstring theory. The corresponding HS…

hep-th2019★ 7 cited

Spin polarization independence of hard polarized fermion string scattering amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We calculate a class of polarized fermion string scattering amplitudes (PFSSA) at arbitrary mass levels. We discover that, in the hard scattering limit, the functional forms of the…

hep-th2018

Extended Complex Yang-Mills Instanton Sheaves

Sheng-Hong Lai, Jen-Chi Lee, I-Hsun Tsai

In the search of YM instanton sheaves with topological charge two, the rank of beta matrix in the monad construction can be dropped from the bundle case with rank(beta)= 2 to eithe…

hep-th2018★ 9 cited

The SL(K+3,C) Symmetry of the Bosonic String Scattering Amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We discover that the exact string scattering amplitudes (SSA) of three tachyons and one arbitrary string state, or the Lauricella SSA (LSSA), in the 26D open bosonic string theory…

hep-th2017

Sheaf lines of Yang-Mills Instanton Sheaves

Sheng-Hong Lai, Jen-Chi Lee, I-Hsun Tsai

We calculate a sheaf line in CP^3 which is the real line supporting sheaf points on CP^3 of SL(2,C) Yang-Mills instanton (or SU(2) complex Yang-Mills instanton) sheaves for some gi…

hep-th2017★ 8 cited

Solving Lauricella String Scattering Amplitudes through Recurrence Relations

Sheng-Hong Lai, Jen-Chi Lee, Taejin Lee +1

We show that there exist infinite number of recurrence relations valid for all energies among the open bosonic string scattering amplitudes (SSA) of three tachyons and one arbitrar…

hep-th2017★ 11 cited

String Scattering Amplitudes and Deformed Cubic String Field Theory

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang +1

We study string scattering amplitudes by using the deformed cubic string field theory which is equivalent to the string field theory in the proper-time gauge. The four-string scatt…

hep-th2016

Yang-Mills Instanton Sheaves with Higher Topological Charges

Sheng-Hong Lai, Jen-Chi Lee, I-Hsun Tsai

We explicitly construct SL(2,C) Yang-Mills (weakly) three and four instanton sheaves on CP^3. These results extend the previous construction of Yang-Mills (weakly) instanton sheave…

hep-th2016★ 17 cited

The Lauricella Functions and Exact String Scattering Amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We discover that the 26D open bosonic string scattering amplitudes (SSA) of three tachyons and one arbitrary string state can be expressed in terms of the D-type Lauricella functio…

hep-th2016★ 3 cited

Yang-Mills Instanton Sheaves

Sheng-Hong Lai, Jen-Chi Lee, I-Hsun Tsai

The SL(2,C) Yang-Mills instanton solutions constructed recently by the biquaternion method were shown to satisfy the complex version of the ADHM equations and the Monad constructio…

hep-th2016★ 6 cited

The Exact SL(K+3,C) Symmetry of String Scattering Amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We discover that the 26D open bosonic string scattering amplitudes (SSA) of three tachyons and one arbitrary string state can be expressed in terms of the D-type Lauricella functio…

hep-th2016★ 5 cited

The String BCJ Relations Revisited and Extended Recurrence relations of Nonrelativistic String Scattering Amplitudes

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

We review and extend high energy string BCJ relations in both the fixed angle and Regge regimes. We then give an explicit proof of four point string BCJ relations for all energy. T…

hep-th2014

Biquaternions and ADHM Construction of Non-Compact SL(2,C) Yang-Mills Instantons

Sheng-Hong Lai, Jen-Chi Lee, I-Hsun Tsai

We extend quaternion calculation in the ADHM construction of Sp(1) (=SU(2)) self-dual Yang-Mills (SDYM) instantons to the case of biquaternion. We use the biconjugate operation of…