D. . Schwal walm 1, 1,4 , , D. Zajfm fman 1 , , Y. Mishnayot ot - - PowerPoint PPT Presentation

Michael Hass IFMIF/ELAMAT 2016

Collaboration between the Nuclear Structure and the molecular and Atomic Physics

• groups. Also scientists from the Hebrew University, Soreq NRC center, MPIK –

Heidelberg and LBL Ph.D. Thesis of Sergey Vaintraub Tsviki Hirsh Ph.D. Student : Yonatan Mishnayot (HUJI/WI)

• M. Hass1, O. Heber1

1 , D . Melnik1,

, M. Rappa papor port1, , S. Vaintrau raub1,3

1,3 ,

, D. . Schwal walm1,

1,4,

, D. Zajfm fman1, , Y. Mishnayot

• t1,

1,3 3 , G. Ron2 , T. Segal2 , T. Hi

Hirsh3, ,

• K. Blaum4

4 1Weizm

izmann ann Institu itute te of Scie ience, e, Israel el, , 2Hebrew rew Univers rsity ity of Jerusal alem, em, Israel el, 3Sore req q Nuclear ar Research arch Center, r, Israel l , 4Max ax-Pl Plan anck Institut itut für Kernphy physik ik, , Heidelberg berg, , Germany any

Michael Hass IFMIF/ELAMAT 2016

BUT… Also “Physics Beyond the Standard Model”

6Li

daughter nucleus e- Electron ne Electron anti-neutrino

 New physics beyond the Standard Model’s

V-A structure “LHC-type” physics at the low energy frontier!

e

e Li He    

 6 6

q

        q           q   cos 3 1 ) ( cos

6 e e SM e e

E p He dW E p a dW

Pure Gamow-Teller

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

B

E T A D E C A Y S TU D I E S WO R L D WI D E

(PARTIAL LIST)

Isotope T echnique Group

6He

Electrostatic T rap

WI (Hass) + HUJI (Ron) + LBL (Kolomensky)

6He

MOT

ANL (Mueller) + UW (Garcia)

8Li

Paul T rap

ANL (Savard)

38mK / 87Rb

MOT

TRIUMF (Behr)

17

• 23Ne

MOT

HUJI (Ron)

26mAl / 35Ar / 46V

Penning T rap

Leuven / WITCH (Severijns)

6He / 35Ar

Paul T rap

LPC CAEN (Fléch ard)

neutron

Many

Many

21Na

MOT

LBL (Freedman - deceased)

16N

Electrostatic T rap

WI (Hass)

21Na

MOT

KVI (Jungmann)

Michael Hass IFMIF/ELAMAT 2016

L=407 mm

Entrance mirror Exit mirror Field free region

Michael Hass IFMIF/ELAMAT 2016

• Fig. 2 A schematic view of the EST for b-

decay studies. The radioactive ion, like 6He, moves with Ek-4.2 keV between the reflecting electrodes. The b electrons are detected in position sensitive counters while the recoiling ions, due to kinematic focusing, are detected with very high efficiency in either one (determined by the instantaneous direction) of the annular MCP counters. Michael Hass IFMIF/ELAMAT 2016

Apparent advantages:

• “Natural” additional kinetic energy of recoils. Kinematics focusing.
• Large solid angles (for BOTH ion recoil and electrons
• Field-free and “equipment-free” inner region
• Simplicity, portability
• Complementary to other method (different systematic errors)
• Full reconstruction of event-by-event - actually measure cos(q)!

+

6He

NG 30o magnet Trap chamber slits Quadrupole deflectors Chopper

1 m

FC FC FC Furnace EBIT Michael Hass IFMIF/ELAMAT 2016

A) High energy (14 MeV) neutrons from a d+t NG hit a hot BeO target; 6He nuclei are produced. B) 6He atoms are transferred to an EBIT where they get ionized, accumulated, and bunched and guided C) The ion bunch is injected into the EIBT for beta-decay studies. D) Data acquisition: signals from detectors are processed, recorded, and analyzed.

NG FC

Michael Hass IFMIF/ELAMAT 2016

Trapping and bunching of stable 4He+ and 4He++. As expected, the trapping time

• f 4He++ is shorter than that
• f 4He+.
• Bunching R&D with 4He
• Algorithm and tests of a position-sensitive e-detector
• R&D into specialized design of Electron Beam

Ion source

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

Hass et al., J. Phys. G: Nucl. Part. Phys., 35, 014042 (2008)

Expected Yields for a BeO target:

9Be(n,a)6He

SARAF (40 MeV, 2 mA): 8∙1012/sec SPIRAL2 (40 MeV, 5 mA): 2∙1013/sec Expected Yields for a BN target:

11B(n,a)8Li

SARAF (40 MeV, 2 mA): 2∙1012/sec ALSO: 16O(n.p)16N, 23Na(n,p)23Ne. ALSO: Direct production

Michael Hass IFMIF/ELAMAT 2016

Or,

• from a d+t, 14 MeV

n generator

• from d beam - VDG

6He production at ISOLDE (CERN)

ISOLDE Exp. 17.4.2009 BeO Similar possibilities With 11B(n,a)8Li B4C

Michael Hass IFMIF/ELAMAT 2016

1.4 GeV p

SARAF Phase I @ Soreq Center - Israel

PSM

Beam Dump Target beam line

 Commissioning of Phase-I is

approaching finalization

 1 mA CW proton beam has

been accelerated up to an energy of 3.7 MeV

 Low duty cycle (~0.2 mA )

deuteron beam has been accelerated up to an energy

• f 4.3 MeV

 New Target Room!!! (2016)  Phase-II – up to 40 MeV

(2020) - SACLAY

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

The Li Liquid Target (LiLiT@SAEAF Michael Paul et al. Hebrew Unive. Jerusalem

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

Yields of several light radioactive isotopes for SARAF-I and SARAF-II

Many thanks to all my colleagues

Michael Hass IFMIF/ELAMAT 2016

Optical resonator Particle resonator Trapping of fast ion beams using electrostatic field L M

V V Ek, q V>Ek/q

Michael Hass IFMIF/ELAMAT 2016

18 April 2016

Electrons detector MCP MCP Entrance mirror Exit mirror

Some of the 6Li ions will miss the MCP at its periphery

6Li++

e- n-

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

Use infrastructure (Shielding, radiation protection, equipment) from de-commissioned 14 MV Koffler accelerator

Michael Hass IFMIF/ELAMAT 2016

Individual photomultipliers Thick plastic scintillator

 Dividing area of Detector to squares  Distribution of Photons in PMTs per square  Statistical Map

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

Michael Hass IFMIF/ELAMAT 2016

The “Standard Model” of Particle Physics