Conveners
Poster session
- Monica Pepe (INFN Perugia (IT))
Poster session
- Roberto Piandani (Universita e INFN, Perugia (IT))
The J-PARC KOTO experiment aims to search the rare kaon decay $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$, which breaks CP in the FCNC process. It is sensitive to the new physics beyond the Standard Model because of the small theoretical uncertainty. The signature of $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$ is two photon clusters on the CsI calorimeter from the pion without any hit in other...
The KOTO experiment at the J-PARC research facility in Tokai, Japan aims to observe and measure the rare decay of the neutral kaon, $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. This decay has a Standard Model (SM) predicted branching ratio (BR) of $(3.00 \pm 0.30) \times 10^{-11}$ [1]. While this decay is extremely rare, it is one of the best decays in the quark sector to probe for new physics...
The KOTO experiment was designed to observe and study the K$_{L}\rightarrow \pi^0 \nu \bar\nu$ decay at J-PARC. The Standard Model (SM) prediction for the process is (3.0$\pm$0.3) x 10$^{-11}$ with small uncertainties. This unique golden decay is an ideal candidate to probe for new physics and can place strict constraints on beyond the standard model (BSM) theories. The previous experimental...
The KOTO experiment at J-PARC is searching for the $ K_{L} \rightarrow \pi^0 \nu \bar{\nu} \ $ decay, which is one of the most sensitive probes to new physics beyond the Standard Model. Its signature is a pair of photons from a $\pi^0 \ $ decay without any additional activity in a hermetic detector system surrounding the decay region. In order to detect this highly suppressed decay, expected...
We are searching for the $K_L\to\pi^0\nu \bar{\nu}$ decay at the J-PARC KOTO experiment. This decay mode is highly suppressed in the Standard Model and its branching ratio is predicted to be $(3.0\pm0.3)\times10^{-11}$ with small theoretical uncertainties. This decay mode is thus sensitive to new physics beyond the Standard Model.
The signature of the signal events is two photons from a...
We are searching for the decay $K_L\to \pi^0\nu\bar{\nu}$ at the KOTO experiment in J-PARC. The standard model prediction for the branching ratio (BR) is $(3.0\pm0.3)\times10^{-11}$. In 2018 KOTO achieved the best upper limit to date of BR$ < 3.0\times10^{-9} (90\%\,\mbox{C.L.})$, improving by an oder of magnitude the previous limit by KEK E391a. The experimental signature is two photons from...
The recent measurements of the $\tau^-\ to K^-K_S \nu_\tau$ decay spectral function carried out with BABAR detector is described. Combining the results on $K^-K_$ mass spectrum and measurements of $e^+e^-\to K_SK_L$ and $e^+e^-\to K^+K^-$ cross sections, the isoscalar and isovector electromagnetic kaon form factors and their relative phase are derived in a model independent way. The...
Spin correlations for the $\Lambda \Lambda$ and $\Lambda \bar{\Lambda}$ pairs, produced in relativistic heavy-ion collisions, and related angular correlations at the joint registration of space-parity nonconserving hadronic decays
of two hyperons are theoretically analyzed. These correlations give important information about the character and mechanism of multiple processes, and the advantage...
The theoretical study of spin structure for the processes of lepton pair
production by pairs of $\gamma$ quanta, which may be emitted in various relativistic hadronic reactions and decays (in particular -- in the rare two-photon decays of the neutral kaons $K^0_S$ and $K^0_L$ ), is performed. For the two-photon process $\gamma \gamma \rightarrow e^+ e^-$, it is shown
that in the case of...
The theoretical study of correlations of the linear and circular polarizations in the system of two $\gamma$ quanta emitted in hadronic decays ( in particular -- in the rare two-photon decays of the neutral kaons $K_S^0$ and $K_L^0$) has been performed. The polarization of a two-photon state is described by the one-photon Stokes parameters and by the components of the correlation "tensor" in...
The features of the NA62 experiment at the CERN SPS - high-intensity setup, trigger-system flexibility, high-frequency tracking of the beam particles, redundant particle identification, and high-efficiency photon vetoes - make NA62 particulary suitable to search for long-lived, weakly-coupled
particles within Beyond the Standard Model physics, using kaon and pion decays as well as operating...
NA62 is the last generation kaon experiment at the CERN SPS aiming to study the ultra-rare $K^+ \rightarrow \pi^+ \nu \overline{\nu}$ decay.
The challenging aspect of NA62 is the suppression of background decay channels with BR up to 10 orders of magnitude higher than the signal and with similar experimental signature, such as $K^+ \rightarrow \mu^+ \nu$. To this purpose, the NA62...
Spin correlations for the $\Lambda \Lambda$ and $\Lambda \bar{\Lambda}$ pairs, produced in relativistic heavy-ion collisions, and related angular correlations at the joint registration of space-parity nonconserving hadronic decays
of two hyperons are theoretically analyzed. These correlations give important information about the character and mechanism of multiple processes, and the advantage...
The theoretical study of correlations of the linear and circular polarizations in the system of two $\gamma$ quanta emitted in hadronic decays ( in particular -- in the rare two-photon decays of the neutral kaons $K_S^0$ and $K_L^0$) has been performed. The polarization of a two-photon state is described by the one-photon Stokes parameters and by the components of the correlation "tensor" in...
The theoretical study of spin structure for the processes of lepton pair
production by pairs of $\gamma$ quanta, which may be emitted in various relativistic hadronic reactions and decays (in particular -- in the rare two-photon decays of the neutral kaons $K^0_S$ and $K^0_L$ ), is performed. For the two-photon process $\gamma \gamma \rightarrow e^+ e^-$, it is shown
that in the case of...
The recent measurements of the $\tau^-\ to K^-K_S \nu_\tau$ decay spectral function carried out with BABAR detector is described. Combining the results on $K^-K_$ mass spectrum and measurements of $e^+e^-\to K_SK_L$ and $e^+e^-\to K^+K^-$ cross sections, the isoscalar and isovector electromagnetic kaon form factors and their relative phase are derived in a model independent way. The...
We are searching for the decay $K_L\to \pi^0\nu\bar{\nu}$ at the KOTO experiment in J-PARC. The standard model prediction for the branching ratio (BR) is $(3.0\pm0.3)\times10^{-11}$. In 2018 KOTO achieved the best upper limit to date of BR$ < 3.0\times10^{-9} (90\%\,\mbox{C.L.})$, improving by an oder of magnitude the previous limit by KEK E391a. The experimental signature is two photons from...
We are searching for the $K_L\to\pi^0\nu \bar{\nu}$ decay at the J-PARC KOTO experiment. This decay mode is highly suppressed in the Standard Model and its branching ratio is predicted to be $(3.0\pm0.3)\times10^{-11}$ with small theoretical uncertainties. This decay mode is thus sensitive to new physics beyond the Standard Model.
The signature of the signal events is two photons from a...
The KOTO experiment at J-PARC is searching for the $ K_{L} \rightarrow \pi^0 \nu \bar{\nu} \ $ decay, which is one of the most sensitive probes to new physics beyond the Standard Model. Its signature is a pair of photons from a $\pi^0 \ $ decay without any additional activity in a hermetic detector system surrounding the decay region. In order to detect this highly suppressed decay, expected...
The KOTO experiment at the J-PARC research facility in Tokai, Japan aims to observe and measure the rare decay of the neutral kaon, $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. This decay has a Standard Model (SM) predicted branching ratio (BR) of $(3.00 \pm 0.30) \times 10^{-11}$ [1]. While this decay is extremely rare, it is one of the best decays in the quark sector to probe for new physics...
The KOTO experiment was designed to observe and study the K$_{L}\rightarrow \pi^0 \nu \bar\nu$ decay at J-PARC. The Standard Model (SM) prediction for the process is (3.0$\pm$0.3) x 10$^{-11}$ with small uncertainties. This unique golden decay is an ideal candidate to probe for new physics and can place strict constraints on beyond the standard model (BSM) theories. The previous experimental...
The J-PARC KOTO experiment aims to search the rare kaon decay $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$, which breaks CP in the FCNC process. It is sensitive to the new physics beyond the Standard Model because of the small theoretical uncertainty. The signature of $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$ is two photon clusters on the CsI calorimeter from the pion without any hit in other...
The features of the NA62 experiment at the CERN SPS - high-intensity setup, trigger-system flexibility, high-frequency tracking of the beam particles, redundant particle identification, and high-efficiency photon vetoes - make NA62 particulary suitable to search for long-lived, weakly-coupled
particles within Beyond the Standard Model physics, using kaon and pion decays as well as operating...
NA62 is the last generation kaon experiment at the CERN SPS aiming to study the ultra-rare $K^+ \rightarrow \pi^+ \nu \overline{\nu}$ decay.
The challenging aspect of NA62 is the suppression of background decay channels with BR up to 10 orders of magnitude higher than the signal and with similar experimental signature, such as $K^+ \rightarrow \mu^+ \nu$. To this purpose, the NA62...
