# Presentation: 348648

## DOE High Energy Physics Briefing to theAstronomy and Astrophysics Advisory Committee 

**Kathy Turner**
** ****Office of High Energy Physics**
**DOE Office of Science**
**See www.science.doe.gov/hep/index.shtm**
**Oct. 12, 2006**

## DOE Office of High Energy Physics (HEP)$717M in FY06

**Understand the unification of fundamental particles and forces and the mysterious forms of unseen energy and matter that dominate the universe**
**Search for possible new dimensions of space**
**Investigate the nature of time itself.**

**Includes the***** *****understanding of the **
**connections between the physics of **
**elementary particles and the physics that**
**determines the structure of the universe, **
**leading to the investigation of very high**
**energy cosmic acceleration mechanisms**
***HEP Office supports 90% of U.S. High***
***Energy Physics and coordinates with NSF,***
***NASA and international efforts***

## DOE Office of High Energy Physics (HEP)

** ****Accelerator-based physics is our primary tool.**
** ****Non-accelerator physics – **growing and important sector
- _Atmospheric and solar neutrinos_:  SuperK, KamLAND, SNO + R&D for future
- _Particle Astrophysics and Cosmology_ to study dark matter, dark energy, high energy cosmic rays, high energy gamma rays
- Currently: GLAST, Auger, VERITAS, SDSS, CDMS-II, AMS, AXION + R&D for future

## DOE High Energy Physics up 8% inFY 2007 President’s Budget Request

- ($M)

## HEP budget up 8% in the FY2007 Request.

**International Linear Collider R&D Doubled: from $30M to $60M**
**Full operations at Fermilab Tevatron and SLAC B Factory**
**Preparing for LHC operations**
**Detector commissioning/computers/software up 5% in FY2007**
**US participation in collaboration up: CMS is ~ 30% US participants; ATLAS ~ 25%.**
**Dark Energy funding up by ~ $10M from $3M.**
**Advanced Accelerator R&D $28M -> $33M**
**Core research program at the universities up ~5%.**
**Neutrinos:  Preliminary engineering design for an electron neutrino appearance experiment at Fermilab and Construction start for Reactor Neutrino Experiment at Daya Bay (China)**

## Non-Accelerator Physics Funding  ($k)

- 						President’s Request
- _Project Funds__	__fy03__	__fy 04      fy05__	__fy06__	__fy07_
- VERITAS	--	1,600	2,050	1,149	--
- Auger		1,230	1,000	--	--	--
- AMS		1,500	--	--	--	--
- CDMS		790	550	--	--	--
- GLAST/LAT	8,501	7,900  11,421	--	--
- Reactor Neutrino				3,000
- _R&D__	__	__fy03__	__fy 04      fy05__	__fy06__	__fy07_
- SNAP 		3,065	2,950	2,762	2,900	7,500
- Generic Dark Energy				5,000
- Scientific Research (operating budget)
- 	labs	16,384	19,713	21,434	27,784	25,957
- 	univ.	12,300	13,565	15,871	18,320	17,760
- TOTAL		44M	 47M	   54M	   50M   ~59M

## DOE Office of Science – FY07 budget status

**Office of Science**
**The Administration requested $4,101.7 million for the Office of Science for FY 2007, an increase of 14.1% over the current budget of $3,596.4 million  See **_**[http://www.aip.org/fyi/2006/022.html](http://www.aip.org/fyi/2006/022.html)**_
**The House-passed bill would provide $4,131.7 million, an increase of 14.1% over the current budget plus an additional $30 million for earmarked projects.  See **_**[http://www.aip.org/fyi/2006/068.html](http://www.aip.org/fyi/2006/068.html)**_
**The Senate's version would provide $4,241.1 million, an increase of 16.6% plus an additional $48.6 million for earmarks.**
**Office of HIGH ENERGY PHYSICS:**
**Current budget: $716.7 million**
**Administration request: $775.1 million (Up 8.1% over the current**
**budget)**
**House bill: $775.1 million (Up 8.1%)**
**Senate bill: $766.8 million (Up 7.0%)**
**We are now on a Continuing Resolution until a budget is passed.**

## Relevant Advisory Panels

**HEPAP (High Energy Physics Advisory Panel) – reports to DOE and NSF**
**AAAC (Astronomy & Astrophysics Advisory Committee) – reports to DOE, NASA, NSF**
- _Subpanels__	__	__Reports to__	__	__Topic(s)__	__	__Reports Due/Approved   _
- Task Force	for	HEPAP & AAAC	Roadmap future initiatives	  	Oct 2005
- CMB Research (TFCR)
- P5			HEPAP		Roadmap new initiatives		Final Draft Oct. 2006
- Neutrino
- Science
- Advisory Group	HEPAP & NSAC	Double Beta Decay Exp’ts		Sept 2005					Reactor and off-axis expt’s		Feb 2006
- Dark Energy		HEPAP & AAAC	Roadmap			July 2006
- Task Force (DETF)
- Dark Matter 		HEPAP & AAAC	priorities & strategy for direct	December 2006
- Science Advisory 			detection of dark matter
- Group (DMSAG)

## Dark Energy Task Force

- DETF was a subpanel of both HEPAP and AAAC
- Their final report was released in June 2006 and it was transmitted by HEPAP to DOE-HEP
- on July 17, 2006 and by AAAC to DOE-HEP on June 30, 2006.
- See http://www.nsf.gov/mps/ast/detf.jsp
- _From the report:_
- Dark Energy could be Einstein’s cosmological constant, new exotic form of matter or may
- signify a breakdown in Einstein’s GR.  To date, there are no compelling theoretical explanations for
- The dark energy,  therefore, observational exploration must be the focus
- No single technique can answer the outstanding questions - need combinations of at least two of
- these techniques, at least one of which is a probe sensitive to the growth of cosmological structure
- in the form of galaxies and clusters of galaxies.
- Recommends medium term (stage III) and longer term (stage IV) program.  Stage III should
- improve the DETF figure of merit by at least a factor of 3 and stage IV by at least a factor of 10.
-    DETF FOM: reciprocal of the area of the error ellipse enclosing the 95% confidence limit in the *w*0–*w**a *plane.
- Recommends that high priority for near-term funding should be given to projects that improve our
- Understanding of the dominant systematic effects

## P5 subpanel

**P5 == Particle Physics Project Prioritization Panel**
-  They are recommending a prioritized roadmap for the HEP program.
**Status report was presented at HEPAP in June ‘06**
- See http://www.science.doe.gov/hep/P5InterimRptChg2June2006.pdf
**Final Draft Report is being submitted to HEPAP today for approval.**
- See presentation at http://www.science.doe.gov/hep/HEPAP/Oct2006/SeidenP5HEPAPtalkOctober2006.pdf
- Recommendations:
- ILC & LHC energy frontier accelerators
- Dark Energy, Dark Matter & Reactor Neutrino experiments
- Start DES, CDMS 25kg experiment and Daya Bay construction in FY08
- Support for LSST and SNAP to bring these to Preliminary Design Review stage over a 2 or 3 yr timeframe
- DOE work with NASA to ensure that a space mission can be carried out and that the 3 potential approaches are properly evaluated
- R&D funding for DUSEL (underground lab) and funding towards experiments using this facility
- Start construction on NOvA – long baseline neutrino experiment
- Construction of the muon g-2 experiment at Brookhaven

## NRC PanelElementary Particle Physics in the 21st Century (EPP2010)

**Draft report release on 4/28/06 – ****www.nationalacademies.org/bpa/epp2010.html**
_**Recommendations:**_
**Fully exploit the opportunities for U.S. involvement at the Large Hadron Collider (LHC) at CERN**
**Comprehensive program to become the world-leading center for R&D for the International Linear Collider (ILC) and mount a compelling to build it in the U.S.**
**Expand the program in particle astrophysics and pursue an internationally coordinated, staged program in neutrino physics.**
**+ further recommendations**

## Current Efforts in our Program

- _Dark Energy – current operating experiments_
- Nearby Supernova Factory (SNFactory) – continues operations; measurements of nearby supernovae; needed for systematics control for future projects (LBNL leads, + Yale et al)
- Supernova Cosmology Project (LBNL leads collaboration)
- Operations continuing using ground telescopes & Hubble Space Telescope measurements to collect statistics and refine results
- Sloan Digital Sky Survey (FNAL leads + NSF funding, universities, foreign)
- Baryon oscillations; galaxy clusters
- _Next I will talk about:_
- Dark Energy – R&D for future
- Ultra High Energy Cosmic Rays
- High Energy Gamma Rays
- Dark Matter & Anti-matter

## Office of High Energy Physics ProgramSupernova Cosmology Project (SCP)

- LBNL-led SCP was 1 of 2 teams that did initial discovery of the acceleration of the universe -  established the new field of supernova cosmology and, more generally, dark energy studies

- SCP’s major HST program this year (2006)

- Search for SNe in *dust-free elliptical galaxies* in (z ≥ 1) clusters

- Astier et al.,
- A&A 447, 31 (2006)

- ~20  very high redshift (z>1)  SNe discovered

- First results from SNLS SuperNova Legacy Survey Collaboration

## Office of High Energy Physics ProgramSloan Digital Sky Survey (SDSS)

- Mosaic Imaging Camera

- Telescope in New Mexico

- _Data_  
- - Galaxy surveys, dark matter, dark energy + astronomy
- - June 2006 – 5th public data release
- Now have data on 8000 square degrees of sky, with 1,048,960 spectra.
- Taking data since 1998
- - Approved for additional data-taking thru summer 2008
- _Funding_: Sloan Foundation, NSF, DOE, Japan, Germany
- _Science News_: Jan. 2005 – first baryon oscillation measurement

- 640 fiber spectrograph

## Dark Energy – Planning & Future

**Planning program in view of DETF and P5 reports**
**Funding R&D for SuperNova Acceleration Probe (SNAP) experiment**
**SNAP is one of the mission concepts for the DOE/NASA JDEM **
**We have been funding R&D to develop the concept since 2000 **
**FY06: $2.9M,   FY07 request: $7.5M**
**They’re working on mission concept studies for NASA, called SNAP-L ($600M capped mission)  -- this is one of the 3 teams that are funded to do these studies.**
**R&D funds through labs (FNAL, SLAC, BNL) for last several years to develop concepts:**
**- DES (Dark Energy Survey) **
**- LSST (Large-scale Synoptic Survey Telescope) **
**- Current plan for DES and LSST is in the range of $2M to $3M for FY07**
**In FY07 Presidential Request, additional R&D of ~$5M available – ground and/or space concepts will be selected; DETF will guide us – planning method to determine distribution of funds**
- funding levels reflect tentative plan which may change based upon advice from DETF and other relevant considerations
**Investigating future space and/or ground telescopes in cooperation with NASA and NSF + exploring participation with international partners.**

##  Pierre Auger – high energy cosmic ray detector array (collaboration w/NSF & foreign partners)

**Partial operations have started – construction expected to be completed by early 2007.  First science results presented at conference in Aug. 2005.**
_****__** **__**Current status (as of end of July 2006)**_
** ****-  18 (out of 24) fluorescence telescopes operating; last building housing 6 telescopes under construction – complete by October**
** ****-  1186 (out of 1600) surface Cherenkov detectors deployed, 984 operating**
** ****- some problems with site access for final ~300 surface detectors – negotiating with landowners**

- Scientific goal is to observe, understand and characterize the very highest energy cosmic rays.
**Collaboration as ~ 350 members from 18 countries**
**Installed over 3000 km****2**** site in Argentina**

**Fluorescence telescopes**

**Water Cherenkov surface detectors**

## VERITAS(Very Energetic Radiation Imaging Telescope Array System)

_**Scientific Purpose**_**:  Study of celestial sources of very high energy gamma-ray sources in the energy range of 50 GeV- 50 TeV & search for dark matter candidates**
**Uses atmospheric Cherenkov 4- telescope array**
_**Collaboration**_**: NSF, DOE + contributions from Smithsonian & foreign institutions**
_**Schedule**_**:  Fabrication scheduled for completion at end of FY 2006, **_**however**_**...**
_**Status**_**: In April 2005, work at Kitt Peak was stopped so National Environmental Policy Act (NEPA) process could be redone according to specifications, in response to suit filed by Tohono O’odham Indian Nation.  **
**NSF is leading the NEPA process with DOE acting as cooperating agency.  **
**Had “government to government” meeting with Tohono O’odham Nation in January 2006;  NSF had another meeting with the T.O. in May;  Waiting now to see T.O. response **
**Plan is to install and commission the telescopes at the Whipple Basecamp while waiting for Kitt Peak access by end of 2006 -  An engineering run will start in 2007.**

- Artist’s conception

- Telescope 1

- Picture taken June 2006
- – 3 telescopes installed at basecamp.

## Large Area Telescope (LAT) on GLAST Mission

_**LAT**_ is the primary instrument on NASA’s Gamma-ray Large Area Space Telescope (GLAST) mission
-  -- Collaboration between NASA, DOE, France, Italy, Japan, Sweden & managed at SLAC.
** ****LAT instrument fabrication complete in Jan ‘06**
**  ****Shipped from SLAC to NRL for thermal, vibration, acoustic testing in May 2006 **
**  ****Shipped to Phoenix (General Dynamics) for integration on spacecraft in Sept. 2006**
** ****GLAST launch scheduled for Oct/Nov 2007**
** ****Successful DOE/NASA partnership!**

**Large Area Telescope – October 2005**

**High energy gamma rays from space**
**  ****- Measure energy and direction from 20 MeV to 300 GeV over a wide field of view**
**- Acceleration mechanisms, dark matter**

## Cryogenic Dark Matter Search

_**Purpose**_**:  direct detection of Weakly Interacting Massive Particles (WIMPS)**
_**Location**_** - Soudan Mine in Minnesota**
_**Data-taking**_**: partial operations started in 2003, full operations with 5 towers starting soon & will continue in FY07**

**CDMS detector**

**Blue line – new results**
**Dotted Blue line – expected full results**

**Results – April 2005**
**...****set the world's lowest exclusion limits on the WIMP cross section by a factor of 10 compared to other experiments, ruling out a significant range of neutralino supersymmetric models. **
**Also have Axion Dark Matter Search (ADMX) experiment at Lawrence Livermore Lab in California – another possible form of Dark Matter**

## 		AMS - Alpha Magnetic Spectrometerw/NASA + foreign partners 

**Search for dark matter, missing matter & antimatter  on the International Space Station**
** **
**Prototype (AMS-01) took data on STS-91 in 1998**
**AMS-02 fabrication complete in 2005;  integration and test to be completed in 2007**
**Plan is for a Shuttle Launch and deployment on ISS  -- launch date is currently unknown.**

## DOE/NASA Joint Dark Energy Mission (JDEM) – History & Status

- Determining the nature of dark energy is a high priority science objective for both DOE and NASA.
- _1999_ – SNAP team starts developing a concept using internal lab-awarded funds
- _2000_ – DOE-HEP starts providing some R&D funds for SNAP
- _April 2002:_  The report by NRC’s Committee on the Physics of the Universe (the Turner panel’s
*Connecting Quarks with the Cosmos* report) recommended three new non-prioritized initiatives,
- one of which is to determine the properties of dark energy.  The Committee recommended that
- “NASA and DOE work together to construct a wide field telescope in space to determine the
- expansion history of the universe and full probe the nature of the dark energy”.  See http://www.nap.edu/catalog/10079.html
- _November 2003_:  DOE and NASA are planning a JDEM and developed a draft agreement to
- coordinate a plan.  The draft agreement includes a strawman organization of the joint project,
- including management structure, agency responsibilities and the process for selecting the science
- team.  There will be a mission concept study phase followed by a joint DOE and NASA
- Announcement of Opportunity call for mission proposals and an open competition to select the
- science team.  See  _http://www.science.doe.gov/hep/JDEM%20Reports.shtm_
- _November 2003_:  The Secretary of Energy announced the Department’s 20-year Science Facility
- prioritized plan.   The JDEM was in a 3rd place tie for projects with highest scientific importance
- and near-term readiness for construction.   See http://www.science.doe.gov/Scientific_User_Facilities/History/20-Year-Outlook-screen.pdf

****** **I was asked to describe the JDEM history and status and also to describe the Congressional language that DOE has been given.

## DOE/NASA Joint Dark Energy Mission (JDEM) – History & Status

_**FY2003**_** - NASA ran a competition in FY03 for mission concept study funds for the Dark Energy Probe.  Two proposals, SNAP and DESTINY, received a small amount of funds (in FY2004?) and another 3 groups received funds to investigate how they could contribute to SNAP. **
_**April 2004:**_**  The 2004 report from the National Science and Technology Council (NSTC) provided a Federal cross-agency strategic plan, “*****The Physics of the Universe*****” for discovery at the intersection of physics and astronomy in response to the NRC’s “*****Connecting Quarks with the Cosmos*****” report.  The NSTC report listed dark energy measurements as its highest priority, proposing a multi-pronged strategy.  The report recommended that NASA and DOE develop a Joint Dark Energy Mission and said this “mission would best serve the scientific community if launched by the middle of the next decade”**
- 	See http://www7.nationalacademies.org/bpa/OSTP Q2C Response Draft.pdf
_**November 2004**_**:  A science definition team was formed in Fall 2004; first meeting Nov. 2004. **
**FY2004 -- JDEM is the Dark Energy Probe in NASA’s Beyond Einstein program, which was approved  in their FY 2004 budget, though only LISA and Con-X were funded for development at that time.  JDEM is also included in their recent roadmaps.  **

## DOE/NASA Joint Dark Energy Mission (JDEM) – History & Status

_**Feb 2006**_
**FY07 President’s Budget for NASA budget shows funding available for one of the five **
**Beyond Einstein missions to starting in FY2009.  **
_**Aug. 2006**_
**NASA has recently announced that it will fund 3 teams for mission concepts**
**studies beginning in FY07.  The concepts chosen all include a wide field telescope with **
**associated camera and other instruments in space, but vary on the scientific methods **
- ADEPT,  DESTINY,  SNAP
_**Summer 2006:**_
**OSTP starts holding meetings again with the agencies involved in the “Physics of the Universe” report to follow the progress.**
_**Fall 2006:**_
**A National Academy panel is being formed, under the auspices of the Space**
**Studies Board and the Board on Physics and Astronomy, to do a study on the Beyond **
**Einstein program to determine which of the five missions should go first and will report **
**in September 2007.  This study is being funded by DOE and NASA.**

## JDEM-related Congressional Directions

_**~ July, 2005**_** - Text from HR 4818, FY 2005 Omnibus Appropriations Bill:**
***“...******The conferees encourage the Department to proceed with the Dark Energy Mission even if the primary science of the mission and mission development must be pursued by the Department so as to avoid schedule delays resulting from implementing the mission jointly with NASA.  International cooperation and appropriate launch arrangements should be pursued where appropriate.  The conferees recognize that an excellent and energized science team has been assembled for this exciting mission.”***
**DOE is investigating foreign partners, but is still going forward assuming we are doing**
**JDEM with NASA.**
_**Dec. 2005**_** – NASA Authorization Act**
***(*****d) JOINT DARK ENERGY MISSION.—The Administrator and the Director of the Department of Energy Office of Science shall jointly transmit to the Committee on Science of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate, not later than July 15, 2006, a report on plans for a Joint Dark Energy Mission. The report shall include the amount of funds each agency intends to expend on the Joint Dark Energy Mission for each of the fiscal years 2007 through 2011, and any specific milestones for the development and launch of the Mission.**
**We submitted the joint report.**

## JDEM-related Congressional Directions

_**May 15, 2006**_
**From the House Energy & Water Subcommittee Markup report, p. 95**
**Over the past few years, the Committee has consistently supported the DOE/NASA Joint Dark Energy Mission (JDEM), a space probe to help answer the fundamental physics question of our time what is the "dark energy" that constitutes the majority of the universe.  Answering this question is among the top priorities of the physics community and of the Office of Science, and the Committee strongly believes that this initiative should move forward.  DOE has done its part, developing the SuperNova Acceleration Probe (SNAP) as the DOE mission concept for JDEM.  Unfortunately, NASA has failed to budget and program for launch services for JDEM.  Unfortunately, in spite of best intentions, the multi-agency aspect of this initiative poses insurmountable problems that imperil its future.  **
**Therefore, the Committee directs the Department to begin planning for a single-agency dark energy mission with a launch in fiscal year 2013.  The Committee directs DOE to explore other launch options, including cooperative international approaches and the procurement of private launch services, to get the SNAP platform into space.  DOE is to report back to the House and Senate Appropriations Committees, not later than March 2, 2007, on the cost and feasibility of a single-agency mission, including the use of alternative launch options.  The Committee will consider providing further guidance on this issue in the fiscal year 2008 appropriations bill and report.  “**

## JDEM-relatedCongressional Directions:

_**June 28, 2006  **_
**- From the Senate Energy and Water Committee Mark-up of the FY07  - Appropriations Bill, under the HEP section...**
** **
- The High Energy Physics program has many promising opportunities to advance our understanding of the universe and its makeup. However, the Department must make important decisions about the future of this program, including balancing the immediate opportunities provided through the Joint Dark Energy Mission and large future investments in the International Linear Collider.
- "International Linear Collider.-The Committee provides $45,000,000, an increase of $15,000,000 above current year levels, to support pre-conceptual research to support the U.S. ILC effort within the Accelerator Development, International Linear Collider R&D activities.
- "The Committee has consistently demonstrated its support of the Department's initiative to launch a space probe to answer the fundamental physics question of our time -- what is the "dark energy" that constitutes the majority of the universe?  The committee strongly believes that this initiative should move forward.  Unfortunately, the multi-agency aspect of this initiative faces insurmountable problems that imperil its future, and the Department risks losing a world-class scientific team.  The Committee is concerned that the joint mission between the Department of Energy and NASA is untenable because of NASA's reorganization and change in focus towards manned space flight.  The Committee directs the Department to immediately begin planning for a single-agency space-based dark energy mission and to conduct a peer-reviewed competition to select a single winning proposal based both upon the quality of science and the overall cost to the Department.  The competition  should be initiated by the end of calendar year 2006 and completed in 2007 with the goal of a launch in fiscal year 2013.  The Committee encourages the Department to aggressively explore potential domestic and international partnerships and launch options to help defray the cost of the missions.  The Committee provides $74,271,000 for Non-Accelerator Physics, and increase of $15,000,000 above the request to support the Joint Dark Energy Mission.
- The Committee has moved $8,310,000 from the Theoretical Physics to the High Energy Density Physics account."