Erratum: Large-scale nuclear structure calculations for spin-dependent WIMP scattering with chiral effective field theory currents [Phys. Rev. D<b>88</b>, 083516 (2013)]

Klos, Philipp; Meneández, J.; Gazit, Doron; Schwenk, A.

doi:10.1103/physrevd.89.029901

Cited by 93 publications

(162 citation statements)

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“…In both cases the end result is an EFT with nonrelativistic nucleon and WIMP fields as the relevant degrees of freedom. Firstly, one can consider a specific set of effective interaction terms at the quark level defined at the hadronic scale and use chiral symmetry constraints to estimate the hierarchy among one-and two-nucleon currents [10][11][12][13][14][15]. This approach is very appealing since similar constraints are used in the construction of nuclear forces [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…In the simplest treatment, only spin-independent interactions are considered and phenomenological nuclear response functions-so-called "Helm form factors"-are used. More recently, many additional responses have been considered and more sophisticated nuclear-structure calculations have been performed using the shell model (SM) [11][12][13][22][23][24][25]. The SM is arguably a very successful phenomenological model for nuclear structure; see e.g.…”

Section: Introductionmentioning

confidence: 99%

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Ab initio nuclear response functions for dark matter searches

Gazda

Forssén

2017

Phys. Rev. D

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We study the process of dark matter particles scattering off 3;4 He with nuclear wave functions computed using an ab initio many-body framework. We employ realistic nuclear interactions derived from chiral effective field theory at next-to-next-to-leading order (NNLO) and develop an ab initio scheme to compute a general set of different nuclear response functions. In particular, we then perform an accompanying uncertainty quantification on these quantities and study error propagation to physical observables. We find a rich structure of allowed nuclear responses with significant uncertainties for certain spin-dependent interactions. The approach and results that are presented here establish a new framework for nuclear structure calculations and uncertainty quantification in the context of direct and (certain) indirect searches for dark matter.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ab initio nuclear response functions for dark matter searches

Gazda

Forssén

2017

Phys. Rev. D

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“…We have normalized the rate to the conventionally used factor G 01 that contains quantities associated with the SM weak interaction (such as g A ), even though the LNV mechanism here involves no SM gauge bosons. The rate (8) is, in fact, insensitive to g A and the debate over its "quenching" in nuclei [56][57][58][59][60][61][62].…”

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confidence: 99%

TeV lepton number violation: From neutrinoless double-βdecay to the LHC

2016

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We analyze the sensitivity of next-generation tonne-scale neutrinoless double-β decay (0νββ) experiments and searches for same-sign di-electrons plus jets at the Large Hadron Collider to TeV scale lepton number violating interactions. Taking into account previously unaccounted for physics and detector backgrounds at the LHC, renormalization group evolution, and long-range contributions to 0νββ nuclear matrix elements, we find that the reach of tonne-scale 0νββ generally exceeds that of the LHC for a class of simplified models. However, for a range of heavy particle masses near the TeV scale, the high luminosity LHC and tonne-scale 0νββ may provide complementary probes. DOI: 10.1103/PhysRevD.93.093002 Total lepton number (L) is a conserved quantum number at the classical level in the Standard Model (SM) of particle physics, yet it is not conserved in many scenarios for physics beyond the Standard Model (BSM). Experimentally, the observation of neutrinoless double-beta decay (0νββ decay) of atomic nuclei would provide direct evidence for lepton number violation (LNV 25 years. When interpreted in terms of the exchange of light Majorana neutrinos, these limits imply an upper bound of order 100-400 meV on the 0νββ-decay effective mass m ββ , depending on the value of the nuclear matrix element employed in this extraction [11]. The next generation of "tonne scale" 0νββ-decay searches aim for half-life sensitivities of order ∼10 27 years, with a corresponding m ββ sensitivity on the order of tens of meV, consistent with expectations based on the inverted hierarchy (IH) for the light neutrino mass spectrum. In this interpretive framework, a null result would imply that either neutrinos are Majorana particles with a mass spectrum in the normal hierarchy (NH) or that they are Dirac fermions.It is possible that neutrino oscillation studies may determine the neutrino mass hierarchy before the next generation 0νββ-decay searches reach their goal sensitivity. Should the hierarchy turn out to be normal, a null result from the tonne-scale 0νββ-decay experiments would not be surprising. However, alternate decay mechanisms could still lead to observation of a signal in the next generation searches, even if the light neutrino spectrum follows the NH and the value of m ββ is experimentally inaccessible. These mechanisms include radiative neutrino mass scenarios [12] and the TeV-scale seesaw mechanism [13][14][15][16][17][18][19] [20]. In these scenarios, the LNV interactions may involve particles whose masses are of order one TeV and whose exchange generates short range interactions that lead to 0νββ decay. Straightforward arguments indicate that the resulting 0νββ-decay half-life can be of order 10 27 yr or shorter, comparable to expectations based on the three light Majorana exchange mechanism and the IH [21]. The associated light Majorana masses may nevertheless follow the NH with m ββ well below the meV scale.How might one experimentally distinguish the TeV LNV scenario for 0νββ decay from the more conventional paradigm base...

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“…In translating both the LUX and PICO-60 limits into bounds on our parameter space, we make use of the spin fractions and form factors from Ref. [38]. We take the efficiency function for PICO-60 from Ref.…”

Section: Direct-detection Constraintsmentioning

confidence: 99%

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

2017

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In most multicomponent dark-matter scenarios, two classes of processes generically contribute to event rates at experiments capable of probing the nature of the dark sector. The first class consists of "diagonal" processes involving only a single species of dark-matter particle-processes analogous to those which arise in single-component dark-matter scenarios. By contrast, the second class consists of "off-diagonal" processes involving dark-matter particles of different species. Such processes include inelastic scattering at direct-detection experiments, asymmetric production at colliders, dark-matter co-annihilation, and certain kinds of dark-matter decay. In typical multicomponent scenarios, the contributions from diagonal processes dominate over those from off-diagonal processes. Unfortunately, this tends to mask those features which are most sensitive to the multicomponent nature of the dark sector. In this paper, by contrast, we point out that there exist natural, multicomponent dark-sector scenarios in which the off-diagonal contributions actually dominate over the diagonal. This then gives rise to a new, enhanced picture of dark-matter complementarity. In this paper, we introduce a scenario in which this situation arises and examine the enhanced picture of dark-matter complementarity which emerges.

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Erratum: Large-scale nuclear structure calculations for spin-dependent WIMP scattering with chiral effective field theory currents [Phys. Rev. D88, 083516 (2013)]

Cited by 93 publications

References 0 publications

Ab initio nuclear response functions for dark matter searches

Ab initio nuclear response functions for dark matter searches

TeV lepton number violation: From neutrinoless double-βdecay to the LHC

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

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