High Energy Accelerator Research Organization

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19912026

most citedEvidence for oscillation of atmospheric neutrinos

5.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2016 · hep-phShow all

52 papers · 2 filters

hep-ph2016★ 79 cited

D-wave charmed and bottomed baryons from QCD sum rules

Hua-Xing Chen, Qiang Mao, Atsushi Hosaka +2

We study the $D$ -wave charmed baryons of $S U (3)$ flavor $3 ˉ_{F}$ using the method of QCD sum rule in the framework of heavy quark effective theory (HQET). We find that th…

hep-ph2016★ 77 cited

Revisiting Kaon Physics in General $Z$ Scenario

Motoi Endo, Teppei Kitahara, Satoshi Mishima +1

New physics contributions to the $Z$ penguin are revisited in the light of the recently-reported discrepancy of the direct CP violation in $K \to π π$ . Interference effects between th…

hep-ph2016★ 83 cited

On Longevity of I-ball/Oscillon

Kyohei Mukaida, Masahiro Takimoto, Masaki Yamada

We study I-balls/oscillons, which are long-lived, quasi-periodic, and spatially localized solutions in real scalar field theories. Contrary to the case of Q-balls, there is no evid…

hep-ph2016★ 17 cited

Collider signals of $W^{'}$ and $Z^{'}$ bosons in the gauge-Higgs unification

Shuichiro Funatsu, Hisaki Hatanaka, Yutaka Hosotani +1

In the $S O (5) \times U (1)$ gauge-Higgs unification (GHU), Kaluza-Klein (KK) excited states of charged and neutral vector bosons, $W^{(1)}$ , $W_{R}^{(1)}$ , $Z^{(1)}$ , $γ^{(1)}$ and $Z_…

hep-ph2016

Hadron tomography studies by generalized parton distributions and distribution amplitudes

S. Kumano

We discuss hadron-tomography studies for the nucleon and exotic hadrons by high-energy hadron reactions. First, the constituent-counting rule is explained for determining internal…

hep-ph2016

Exotic-Hadron Signature by Constituent-Counting Rule in Perturbative QCD

Wen-Chen Chang, H. Kawamura, S. Kumano +1

We explain a method to find internal quark configurations of exotic hadron candidates by using the constituent counting rule. The counting rule was theoretically predicted in pertu…

hep-ph2016★ 2 cited

Estimate on Spin Asymmetry for Drell-Yan Process at Fermilab with Tensor-Polarized Deuteron

S. Kumano, Qin-Tao Song

There are four new structure functions for the spin-1 deuteron in comparison with the ones for the spin-1/2 proton, and they are called $b_{1}$ , $b_{2}$ , $b_{3}$ , and $b_{4}$ . The twist-2…

hep-ph2016★ 11 cited

Primordial Lepton Oscillations and Baryogenesis

Yuta Hamada, Ryuichiro Kitano

The baryon asymmetry of the Universe should have been produced after the inflation era. We consider the possibility that the asymmetry is generated by the flavor oscillations in th…

hep-ph2016★ 69 cited

Baryon asymmetry from primordial black holes

Yuta Hamada, Satoshi Iso

We propose a new scenario of the baryogenesis from primordial black holes (PBH). Assuming presence of microscopic baryon (or lepton) number violation and a CP violating operator su…

hep-ph2016

The ccbar Pentaquarks by a Quark Model

Sachiko Takeuchi, Makoto Takizawa

Recent LHCb experiments have shown us that there are two resonances in the $J / ψ p$ channel in the $Λ_{b}$ decay, whose spin and parity are most probably (3/2 $^{-}$ 5/2 $^{+}$ ). In this wor…

hep-ph2016★ 3 cited

Surviving scenario of stop decays for ATLAS $ℓ + j e t s + E_{T}^{mi ss}$ search

Chengcheng Han, Mihoko M. Nojiri, Michihisa Takeuchi +1

Recently ATLAS reported a $3.3 σ$ excess in the stop search with $ℓ + j e t s + E_{T}^{mi ss}$ channel. We try to interpret the signal by a light stop pair production in the MSSM. We find:…

hep-ph2016★ 1 cited

Impacts of B-factory measurements on determination of fragmentation functions from electron-positron annihilation data

M. Hirai, H. Kawamura, S. Kumano +1

Fragmentation functions are determined for the pion and kaon by global analyses of charged-hadron production data in electron-positron annihilation. Accurate measurements were repo…

hep-ph2016★ 83 cited

Structure of charmed baryons studied by pionic decays

Hideko Nagahiro, Shigehiro Yasui, Atsushi Hosaka +2

We investigate the decays of the charmed baryons aiming at the systematic understanding of hadron internal structures based on the quark model by paying attention to heavy quark sy…

hep-ph2016★ 69 cited

First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+} e^{-}$ annihilation

N. Sato, J. J. Ethier, W. Melnitchouk +3

We perform the first iterative Monte Carlo (IMC) analysis of fragmentation functions constrained by all available data from single-inclusive $e^{+} e^{-}$ annihilation into pions and k…

hep-ph2016★ 33 cited

Quark-gluon discrimination in the search for gluino pair production at the LHC

Biplob Bhattacherjee, Satyanarayan Mukhopadhyay, Mihoko M. Nojiri +2

We study the impact of including quark- and gluon-initiated jet discrimination in the search for strongly interacting supersymmetric particles at the LHC. Taking the example of glu…

hep-ph2016★ 6 cited

One loop effects of natural SUSY in third generation fermion production at the ILC

Yusaku Kouda, Tadashi Kon, Yoshimasa Kurihara +4

Within the framework of the Minimal Supersymmetric Standard Model, we investigate the 1-loop effects of supersymmetric particles on the third-generation fermion-pair production at…

hep-ph2016★ 138 cited

Violent Preheating in Inflation with Nonminimal Coupling

Yohei Ema, Ryusuke Jinno, Kyohei Mukaida +1

We study particle production at the preheating era in inflation models with nonminimal coupling $ξ ϕ^{2} R$ and quartic potential $λ ϕ^{4} /4$ for several cases: real scalar inflaton, comp…

hep-ph2016★ 27 cited

Probing CP violation in $h \to τ^{-} τ^{+}$ at the LHC

Kaoru Hagiwara, Kai Ma, Shingo Mori

We propose a novel method to reconstruct event by event the full kinematics of the cascade decay process, $h \to τ^{+} τ^{-} \to (π^{+} ν ˉ) (π^{-} ν)$ , which allows us to measure the $τ^…

hep-ph2016★ 12 cited

Unravelling the physical meaning of the Jaffe-Manohar decomposition of the nucleon spin

Masashi Wakamatsu

A general consensus now is that there are two physically inequivalent complete decompositions of the nucleon spin, i.e. the decomposition of the canonical type and that of mechanic…

hep-ph2016★ 10 cited

$K^{0} Λ$ and $D^{-} Λ_{c}^{+}$ production induced by pion beams off the nucleon

Sang-Ho Kim, Hyun-Chul Kim, Atsushi Hosaka

We present a comparative study of the pion induced production of $K^{0} Λ$ and $D^{-} Λ_{c}^{+}$ off the nucleon. A hybrid framework is utilized by combining an effective Lagrangian method…

hep-ph2016★ 69 cited

Chargino contributions in light of recent $ε^{'} / ε$

Motoi Endo, Satoshi Mishima, Daiki Ueda +1

Recently, the standard model prediction of $ε^{'} / ε$ was improved, and a discrepancy from the experimental results was reported at the $2.9 σ$ level. We study the chargino contribution…

hep-ph2016★ 2 cited

Gravitational relaxation of electroweak hierarchy problem

Hiroki Matsui, Yoshio Matsumoto

In the present paper, we discuss gravitational relaxation models for the electroweak hierarchy problem. We show that modified gravity can naturally relax the electroweak hierarchy…

hep-ph2016★ 51 cited

The hidden charm pentaquarks are the hidden color-octet $uu d$ baryons?

Sachiko Takeuchi, Makoto Takizawa

The $I (J^{P}) = \frac{1}{2} (\frac{1}{2}^{-})$ , $\frac{1}{2} (\frac{3}{2}^{-})$ , and $\frac{1}{2} (\frac{5}{2}^{-})$ $uu d c c$ pentaquarks are investigated by the quark cluster model. This m…

hep-ph2016★ 7 cited

The reheating era leptogenesis in models with seesaw mechanism

Yuta Hamada, Koji Tsumura, Daiki Yasuhara

Observed baryon asymmetry can be achieved not only by the decay of right-handed neutrinos but also by the scattering processes in the reheating era. In the latter scenario, new phy…

D-wave charmed and bottomed baryons from QCD sum rules

Revisiting Kaon Physics in General Z Scenario

On Longevity of I-ball/Oscillon

Collider signals of W′ and Z′ bosons in the gauge-Higgs unification

Hadron tomography studies by generalized parton distributions and distribution amplitudes

Exotic-Hadron Signature by Constituent-Counting Rule in Perturbative QCD

Estimate on Spin Asymmetry for Drell-Yan Process at Fermilab with Tensor-Polarized Deuteron

Primordial Lepton Oscillations and Baryogenesis

Baryon asymmetry from primordial black holes

The ccbar Pentaquarks by a Quark Model

Surviving scenario of stop decays for ATLAS ℓ+jets+ETmiss​ search

Impacts of B-factory measurements on determination of fragmentation functions from electron-positron annihilation data

Structure of charmed baryons studied by pionic decays

First Monte Carlo analysis of fragmentation functions from single-inclusive e+e− annihilation

Quark-gluon discrimination in the search for gluino pair production at the LHC

One loop effects of natural SUSY in third generation fermion production at the ILC

Violent Preheating in Inflation with Nonminimal Coupling

Probing CP violation in h→τ−τ+ at the LHC

Unravelling the physical meaning of the Jaffe-Manohar decomposition of the nucleon spin

K0Λ and D−Λc+​ production induced by pion beams off the nucleon

Chargino contributions in light of recent ε′/ε

Gravitational relaxation of electroweak hierarchy problem

The hidden charm pentaquarks are the hidden color-octet uud baryons?

The reheating era leptogenesis in models with seesaw mechanism

Revisiting Kaon Physics in General $Z$ Scenario

Collider signals of $W^{'}$ and $Z^{'}$ bosons in the gauge-Higgs unification

Surviving scenario of stop decays for ATLAS $ℓ + j e t s + E_{T}^{mi ss}$ search

First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+} e^{-}$ annihilation

Probing CP violation in $h \to τ^{-} τ^{+}$ at the LHC

$K^{0} Λ$ and $D^{-} Λ_{c}^{+}$ production induced by pion beams off the nucleon

Chargino contributions in light of recent $ε^{'} / ε$

The hidden charm pentaquarks are the hidden color-octet $uu d$ baryons?