Effective Leptophilic WIMPs at the e+e− collider

Barman, Basabendu; Bhattacharya, Subhaditya; Girmohanta, Sudhakantha; Jahedi, Sahabub

doi:10.1007/jhep04(2022)146

Cited by 14 publications

(6 citation statements)

References 149 publications

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“…Moreover, for a particular set of processes, the dominant contributions may come from a limited set of operators, leading to an EFT version of simplified models. Many of these aspects have been investigated by Indian physicists [884][885][886][887][888][889][890][891][892][893][894][895][896][897][898][899], though much remains to be done, as this is an active, ongoing line of research.…”

Section: Effective Field Theoriesmentioning

confidence: 99%

Indian contributions to LHC theory

Raychaudhuri

2023

Eur. Phys. J. Spec. Top.

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Indian scientists began to work on the theoretical aspects of LHC physics from the early 1980s, at the same time when the rest of the world started taking interest in this then-futuristic topic. From this point grew a whole school of collider phenomenologists, who now form a significant fraction of the Indian high-energy physics community. This article briefly reviews the growth and contributions of the Indian school, on the way describing some of the physics ideas while placing the work in the international context, and proceeding thus, brings the story up to date in mid-2022.Dedicated to the memory of the late D.P. Roy (1941Roy ( -2017, the father of Indian collider theory. The expectant 80sThe LHC owes its origin [1] to CERN's far-sighted leaders, Léon van Hove, who served from 1976-1980 as the Scientific Director-General, and Technical Director-General Sir John Adams (1976)(1977)(1978)(1979)(1980)(1981), who resolved that it would be feasible and scientifically rewarding to build the next-generation storage ring at CERN. Thus, in 1977, Adams wrote the crucial concept note that the LEP collider 1 tunnel, which would be excavated in the 1980s, should be made large enough to accommodate the superconducting magnets required for a future phase of proton acceleration at higher energies. This 1977 note may be thought of as the genesis of the LHC. By 1978, it was already well known in the community, even though the formal approval for the LEP came only in 1981, and the machine itself started running in 1989 [2]. However, the fact that the 20 TeV LHC would eventually come and that the physics at such a machine should be studied, was in the air right from the early 1980s onward. Moreover, the USA was supposed to build a 40 TeV Superconducting Super Collider (SSC) which, sadly, never materialised 2 . The 1980s were, in fact, a period of great optimism for high-energy physics -or, as it was then more commonly known, elementary particle physics. One trigger for this may have lain in the decision of the Nobel Prize committee, in 1979, to recognise the work of Glashow (1961) [3], of Salam (1966-1968 1 The Large Electron-Positron collider.2 It was sanctioned in 1989, and eventually cancelled in 1993.

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Section: Effective Field Theoriesmentioning

confidence: 99%

Indian contributions to LHC theory

Raychaudhuri

2023

Eur. Phys. J. Spec. Top.

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“…particularly interesting possibility is the sterile neutrino DM that can produce astrophysical X-ray [22][23][24][25][26][27]. The leptophilic DM models have been discussed extensively in literature [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] and have the potential of explaining various experimental anomalies [47][48][49].…”

Section: Jhep11(2023)190mentioning

confidence: 99%

“…The collider search provides a tunable environment to distinguish the leptophilic and hadrophilic natures of DM. While hadron colliders mainly probe quark couplings [50][51][52][53][54], lepton colliders are more sensitive to the leptonic ones [47][48][49][55][56][57][58][59][60]. Typically, the DM search at lepton collider utilizes the missing energy or momentum as characteristic signature, such as the mono-photon [61][62][63][64][65][66][67] and mono-Z [68][69][70][71] signals that have been studied extensively.…”

Section: Jhep11(2023)190mentioning

confidence: 99%

“…We consider possible test of a dark fermion at lepton colliders in the associated production with a neutrino. In contrast to the DM pair χ χ production as usually studied (for instance in [48]), the effective operators in eq. (2.1) will induce events containing a single dark fermion χ (or χ) and an associated anti-neutrino ν (or a neutrino ν), as shown in figure 1(a).…”

Section: Mono-photon Productionmentioning

confidence: 99%

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Associated production of neutrino and dark fermion at future lepton colliders

Ge,

Ma,

et al. 2023

J. High Energ. Phys.

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Fermionic dark matter can be pairly produced and hence searched with missing energy at colliders. We extend such probe to the associated production of a neutrino and a dark sector fermion at the future e+e− colliders such as CEPC, FCC-ee, ILC, and CLIC. Two typical processes, the mono-photon and electron-positron pair productions associated with missing energy, can serve the purpose. While the mono-photon search prevails at CEPC, FCC-ee, and ILC, the "Image missing" channel has more significant contributions at CLIC with much higher collision energy $$ \sqrt{s} $$ s . The beam polarizations can help further suppressing the SM backgrounds to enhance the signal significance while differential cross sections can distinguish the Lorentz structure of various effective operators. The combined sensitivity can reach well above 1 TeV at CEPC/FCC-ee and ILC while it further touches 30 TeV at CLIC. Comparing with the updated results from the direct detection experiments (XENON1T, PandaX-II, PandaX-4T, LZ, and XENONnT), astrophysical X/γ-ray observations, and cosmological constraints for the sub-MeV absorption dark matter, the collider searches are actually more sensitive and hence can provide a complementary approach to addressing the dark fermions.

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“…Extending particle contents of the SM by adding new states which interact weakly with the SM particles is the most profound approach to study physical properties of the dark sector. It is highly desirable to adopt an approach of Effective Field Theory (EFT) involving the DM, the so called DM EFT (DMEFT) [5][6][7], to model-independently study physics of the dark sector. In general, the DM can take into play at both tree and loop level [8,9], and a variety of theoretical models of DM have been proposed [10].…”

Section: Introductionmentioning

confidence: 99%

Mono-$γ$ Production of a Vector Dark Matter at Future $e^+e^-$ Collider

Ma¹

2022

Preprint

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Associated production of a dark particle and a photon, represented as a mono-γ event, is a promising channel to probe particle contents and dynamics in the dark sector. In this paper we study properties of the mono-γ production of a vector dark matter at future e + e − colliders.The photon-like and Pauli operators, as well as triple gauge bosons interactions involving the dark matter, are considered in the framework of Effective Field Theory. We show that, comparing to the Pauli operator, the triple gauge bosons couplings are much more interesting at high energy collider.Beam polarization effects are also analyzed, and we show that the experimental sensitivities can not be enhanced significantly because of the smaller luminosity.

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Effective Leptophilic WIMPs at the e+e− collider

Cited by 14 publications

References 149 publications

Indian contributions to LHC theory

Indian contributions to LHC theory

Associated production of neutrino and dark fermion at future lepton colliders

Mono-$γ$ Production of a Vector Dark Matter at Future $e^+e^-$ Collider

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