φ-meson production in proton-proton collisions

Nakayama, K.; Durso, J.W.; Haidenbauer, J.; Hanhart, C.; Speth, J.

doi:10.1103/physrevc.60.055209

Cited by 58 publications

(109 citation statements)

References 54 publications

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“…The recent value Γ(φ → ρπ) = 0.69 MeV results in |g φρπ | = 1.10 GeV −1 . The SU(3) symmetry consideration [15,23] predicts a negative value for it. Thus, g φρπ = −1.10 GeV −1 .…”

Section: A Fixing Parametersmentioning

confidence: 99%

“…(11), and the parameters of the φNN interaction, g φN N and κ φ . We can reduce the number of parameters by making the natural assumption Λ π φρ = Λ ρ φρ based on the symmetry of the virtual mesons in the φρπ vertex [15].…”

Section: A Fixing Parametersmentioning

confidence: 99%

“…An important step towards an understanding of the structure of the "non-strange" pp → ppφ reaction mechanisms was made recently [15]. The focus of Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The focus of Ref. [15] is the determination of the parameters of the direct φNN interaction, thus reducing the above mentioned uncertainties, by analyzing the combined the pp → ppω and pp → ppφ reactions and the corresponding DISTO data [10] at a given beam energy; for the reaction pp → ppω just the same mechanism is assumed as those for pp → ppφ, as shown in Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

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Production of φ mesons in near-threshold π

Титов¹,

Kämpfer²,

Reznik³

2000

EPJ A

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We analyze the production of φ mesons in πN and N N reactions in the nearthreshold region, using throughout the conventional "non-strange" dynamics based on such processes which are allowed by the non-ideal ω − φ mixing.We show that the occurrence of the direct φN N interaction may show up in different unpolarized and polarization observables in πN → N φ reactions.We find a strong non-trivial difference between observables in the reactions pp → ppφ and pn → pnφ caused by the different role of the spin singlet and triplet states in the entrance channel. A series of predictions for the experimental study of this effect is presented.

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Section: A Fixing Parametersmentioning

confidence: 99%

Section: A Fixing Parametersmentioning

confidence: 99%

“…An important step towards an understanding of the structure of the "non-strange" pp → ppφ reaction mechanisms was made recently [15]. The focus of Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Production of φ mesons in near-threshold π

Титов¹,

Kämpfer²,

Reznik³

2000

EPJ A

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“…Solid lines present theoretical predictions for the ω and η production cross sections from Ref. [20] and [21], respectively. the ppK + K − events, determined using Monte Carlo simulations taking into account the pp-FSI, is equal to 2.83%.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Near-threshold charged kaon pair production in two protons collisions

Gil

Smyrski

2016

EPJ Web Conf.

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Abstract. The pp → ppK + K − reaction was measured near threshold at excess energy Q = 4.5 MeV using the COSY-11 detection system installed at the COSY-Juelich accelerator. Preliminary value of upper limit of the total cross section was determined. This limit indicates that an enhancement of the total cross section close to the threshold, caused by the final state interaction, is smaller than suggested by extrapolation of data measured at higher energies. Physics motivationThe energy dependence of the pp → ppK + K − total cross section close to threshold is very sensitive to the interactions between particles in the final state, and therefore is well suited for studies of these interactions. There are many interesting topics connected with the interactions of the final state kaons and protons. For example, the K + K − interaction is crucial for understanding the structure of the scalar mesons f 0 (980) and a 0 (980), which according Ref. [1,2] are KK molecules. In turn, the K − p interaction is interesting from the point of view of study the nature of the Λ(1405) hyperon, which is considered as a K − p molecular state [3]. There are also some astrophysical aspects of studying kaons production reactions, like description of neutron stars structure [4]. Elementary reactions of kaon pair production in pp collisions are also important for better understanding of the properties of kaons inside dense baryonic matter [5]. The existing data for the kaon pair production in pp collisions were measured for excess energies higher than Q = 6 MeV, with exception of one point at 3 MeV, for which only upper limit of the total cross section was determined. On the other hand, data very close to threshold (for Q < 6 MeV) are crucial for distinguishing between various models of the final state interaction (FSI) in the ppK + K − system. Therefore, we performed a high luminosity measurement at Q = 4.5 MeV. ExperimentThe measurement was performed with the COSY-11 detection system, described in details in Ref. [6], at the COSY-Juelich accelerator. A principle of the measurement is presented in Fig. 1. Internal proton beam of the COSY was scattered on the COSY-11 H 2 cluster target. The beam momentum

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Searches for new physics at SND@LHC

Boyarsky

Mikulenko

Ovchynnikov

et al. 2022

J. High Energ. Phys.

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SND@LHC is an approved experiment equipped to detect scatterings of neutrinos produced in the far-forward direction at the LHC, and aimed to measure their properties. In addition, the detector has a potential to search for new feebly interacting particles (FIPs) that may be produced in proton-proton collisions. In this paper, we discuss signatures of new physics at SND@LHC for two classes of particles: stable FIPs that may be detected via their scattering, and unstable FIPs that decay inside the detector. We estimate the sensitivity of SND@LHC to probe scatterings of leptophobic dark matter and decays of neutrino, scalar, and vector portal particles. Finally, we also compare and qualitatively analyze the potential of SND@LHC and FASER/FASERν experiments for these searches.

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φ-meson production in proton-proton collisions

Cited by 58 publications

References 54 publications

Production of φ mesons in near-threshold π

Production of φ mesons in near-threshold π

Near-threshold charged kaon pair production in two protons collisions

Searches for new physics at SND@LHC

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